Upwork home
Sign up
Secondary

Hire the best Mobile App Developers in Lviv, UA

Check out Mobile App Developers in Lviv, UA with the skills you need for your next job.
Hire freelancers
Clients rate Mobile App developers
Rating is 4.8 out of 5.
4.8/5
based on 610 client reviews
  • $50 hourly
    • 5.0/5
    • (19 jobs)
    I specialize in iOS and Android development but also provide end-to-end app development when needed—in partnership with expert UI/UX designers and backend engineers. • Huma (UK healthtech company, $300M funded) – Led iOS development, architected the SDK, and built complex features for remote patient monitoring. • FuboTV (US streaming service with millions of users) – Developed and optimized video playback on iOS, tvOS, and Chromecast for a seamless streaming experience. 📊 Industry Experience: Healthtech, finance, social networking, communication tools, and more—focusing on security, real-time interactions, intuitive UI, and compliance with HIPAA & GDPR standards. 📩 Need expert iOS/Android development or an end-to-end app solution? Let’s discuss how I can help!
    Featured Skill Mobile App Development
    SwiftUI
    Tablet
    Kotlin
    Firebase
    User Authentication
    User Profile Creation
    QA Engineering
    QA Testing
    UX & UI Design
    iOS Development
    Swift
    Android
    iOS
    Smartphone
  • $40 hourly
    • 4.5/5
    • (38 jobs)
    🏆𝐂𝐞𝐫𝐭𝐢𝐟𝐞𝐝 𝐛𝐲 𝐔𝐩𝐰𝐨𝐫𝐤 as React, React.js Developer 🏆 👉 One of the React, Next.js, and Node.js projects I developed now 𝗵𝗮𝘀 𝗼𝘃𝗲𝗿 𝟮𝟬,𝟬𝟬𝟬 𝗮𝗰𝘁𝗶𝘃𝗲 𝘂𝘀𝗲𝗿𝘀 𝗮𝗻𝗱 𝗵𝗮𝘀 𝗴𝗲𝗻𝗲𝗿𝗮𝘁𝗲𝗱 𝗮 𝘁𝗼𝘁𝗮𝗹 𝗶𝗻𝗰𝗼𝗺𝗲 𝗼𝗳 𝗺𝗼𝗿𝗲 𝘁𝗵𝗮𝗻 $𝟵𝟬𝟬,𝟬𝟬𝟬. 👉 I built a React.js, Next.js, Node.js, and GraphQL project from scratch that 𝗴𝗲𝗻𝗲𝗿𝗮𝘁𝗲𝗱 𝗮𝗻 𝗮𝗱𝗱𝗶𝘁𝗶𝗼𝗻𝗮𝗹 $𝟭𝟬𝟬,𝟬𝟬 👉 Over the 1.5 years, I single-handedly developed a successful React Native startup app in the UK, 𝗴𝗲𝗻𝗲𝗿𝗮𝘁𝗶𝗻𝗴 £𝟭𝟭𝗠 𝗶𝗻 𝗮𝗻𝗻𝘂𝗮𝗹 𝗿𝗲𝘃𝗲𝗻𝘂𝗲 𝗮𝗻𝗱 𝗵𝗲𝗹𝗽𝗶𝗻𝗴 𝗿𝗲𝗰𝘆𝗰𝗹𝗲 𝗼𝘃𝗲𝗿 𝟰𝟬𝟬,𝟬𝟬𝟬 𝗽𝗹𝗮𝘀𝘁𝗶𝗰 𝗯𝗼𝘁𝘁𝗹𝗲𝘀. Other achievements: 🥇 B2B/B2C React.js and Node.js Web application with React Native Mobile App that serves 𝗼𝘃𝗲𝗿 𝟭𝟬,𝟬𝟬𝟬 𝘂𝘀𝗲𝗿𝘀 🥇 React Native Mobile app with 𝗼𝘃𝗲𝗿 𝟮𝟬𝗞 𝗱𝗼𝘄𝗻𝗹𝗼𝗮𝗱𝘀 and 𝗺𝗼𝗿𝗲 𝘁𝗵𝗮𝗻 𝟱𝗞 𝗮𝗰𝘁𝗶𝘃𝗲 𝘂𝘀𝗲𝗿𝘀 🥇 React & Node.js Web Application Project 𝗮𝘄𝗮𝗿𝗱𝗲𝗱 “Most Innovative Brokerage” - a global network of 565 real estate companies representing 130,000 agents, across 70+ countries 💎 𝐀𝐛𝐨𝐮𝐭 𝐦𝐞: - 8+ years specializing in React frontend React.js, React Native, Next.js, Node.js, Supabase, GraphQL, TailwindCSS, Material UI, Shadcn/ui, Radix, D3.js, Solana, Web3, Blockchain. - Support during the project and after the project is completed. - I won't leave you halfway and disappear. - Quality code and easy to extend or support. - Your pain is mine. - Fast and clear communication 🛠️ 𝐄𝐱𝐩𝐞𝐫𝐞𝐢𝐧𝐜𝐞 𝐢𝐧: - SSO, Subscriptions - In-App Purchases - SaaS - ECO - Real Estate - Healthcare - E-commerce - CRM - B2B / B2C 💎 𝐅𝐫𝐨𝐧𝐭-𝐄𝐧𝐝 - React.js, React Native, Next.js - Three.js - React Hooks, React Query, React Native - Storybook - Redux, Redux Toolkit - TypeScript, JavaScript - GraphQL - Gatsby - WebSockets - TailwindCSS, shadcn/ui, Material UI ⚙️ 𝐁𝐚𝐜𝐤-𝐄𝐧𝐝 - Node.js, Strapi, Express, Nest.js - GraphQl, Rest - MongoDB, MySQL. PostgreSQL - Supabase, Firebase - AWS, AWS Cognito, AWS Amplify Tools: Postman, Git, Github, Jira, Trello, Bitbucket, GitLab, Figma, Docker, Heroku, Vercel, CI/CD, Mapbox 𝐌𝐲 𝐀𝐩𝐩𝐫𝐨𝐚𝐜𝐡 𝐭𝐨 𝐁𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐟𝐫𝐨𝐦 𝐒𝐜𝐫𝐚𝐭𝐜𝐡 using React.js, Node.js, Next.js: - Conducting thorough research and creating a list of essential features - Rough estimating core functionalities and their scope - Breaking down the work into manageable milestones - Designing the user interface and experience (if you don’t have a designer, no worries—I can handle it) - Performing a detailed estimate before each milestone - Start development using React, Node, Supabse, and Next and testing with regular updates and demos - Ongoing project support (I won’t leave you hanging—I'm here to help you at every stage) 𝐀𝐝𝐝𝐢𝐭𝐢𝐨𝐧𝐚𝐥 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬: - Writing project documentation 📄 - Analyzing your business to identify opportunities for improving profitability 💰💸 - Market and competitor research to inform better decision-making 🔎 - Proposing new features that could potentially generate additional 💰💸 revenue - SEO optimization 📈 🤝 𝐋𝐞𝐭'𝐬 𝐠𝐞𝐭 𝐬𝐭𝐚𝐫𝐭𝐞𝐝 𝐚𝐧𝐝 𝐦𝐚𝐤𝐞 𝐭𝐡𝐢𝐬 𝐡𝐚𝐩𝐩𝐞𝐧! The first question I’ll ask you is: What is your goal for this project? Last updated 30 December 2024
    Featured Skill Mobile App Development
    Front-End Development
    Web Development
    Supabase
    Firebase
    GraphQL
    React Native
    Tailwind CSS
    Web Application
    Material UI
    JavaScript
    Node.js
    Next.js
    React
    TypeScript
  • $40 hourly
    • 5.0/5
    • (7 jobs)
    Hey there 👋 I am Mykhailo and a seasoned mobile app developer with 7+ years of experience leveraging cutting-edge technologies. I'm adept at transforming mobile app ideas into real-world solutions that captivate users. My expertise extends across native ios development with Swift & Objective-C, and cross-platform mobile development for diverse platforms like Android, iOS, web, and desktop using Flutter/FlutterFlow and React native. 🚀 Specific expertise is as follows: Real-time tracking mobile app E-learning platform On-demand service & delivery mobile app Real estate/property management mobile app Marketplace mobile app E-commerce store Medical/healthcare mobile app Database management & manipulation of mobile app Financial management mobile app Why Choose Me? 🚀 In step with Technology: Constantly seeking and swiftly implementing new tech solutions. 💡 Innovative Solutions: Delivering inventive solutions, driving project advancement. 🕒 24/7 in Touch: Available for project discussions and issue resolution 📈 Results-Driven: Committed to achieving tangible outcomes and exceeding expectations. 💼 Client-Centric: Dedicated to understanding and fulfilling client needs with tailored solutions. 🔍 Attention to Detail: Ensuring accuracy and precision in every aspect of project execution. Ready to build your dream mobile app? I'm eager to collaborate and bring your vision to life. Contact me!
    Featured Skill Mobile App Development
    Firebase
    Google Maps
    In-App Purchases
    Social Media Account Integration
    Payment Gateway Integration
    Push Notifications
    User Authentication
    Smartphone
    FlutterFlow
    Flutter
    React Native
    Swift
    Android
    iOS
  • $35 hourly
    • 5.0/5
    • (16 jobs)
    Hello! My name is Victoria, and I am an experienced mobile app and website developer with over 5 years of professional experience. I take pride in being a member of the ELDEVELOP team, where every day I encounter exciting challenges and opportunities in the world of mobile development and web technologies. In my career, I have focused on development for both mobile devices and websites, including e-commerce sites. In mobile development, I am proficient in the programming languages Swift and Kotlin, creating innovative and high-performance applications for iOS and Android platforms. In web development, I use PHP and frameworks like CakePHP to build powerful and scalable web applications. I also have experience working with Node.js to create efficient server applications. My skills also encompass using content management systems like WordPress and developing interfaces using HTML and CSS3. At ELDEVELOP, I have learned to appreciate teamwork, innovation, and a commitment to high product quality. My goal is to continue contributing to the company's success by developing outstanding solutions that meet client requirements and leave a lasting impression on users. I look forward to the opportunity to contribute to your project and leverage my experience to create unique and effective solutions for you and your company!
    Featured Skill Mobile App Development
    Node.js
    Swift
    Kotlin
    WordPress
    CakePHP
    PHP
    Web Development
    Ecommerce Website
    iOS
    Android
    Mobile Web
  • $50 hourly
    • 5.0/5
    • (70 jobs)
    🥇 Top 1% - UpWork Mobile Solutions. Working with Flutter and mobile development for the last 16 years. My skill-set: ✔ Cross-platform: Flutter, Compose Multiplatform ✔ iOS: Swift, Objective-C, UIKit, SwiftUI ✔ Android: Kotlin, Java, Jetpack Compose ✔ Backend: FastAPI, Django, Spring, Spring Boot, Node.JS Checkout some interesting projects I worked on in the work history and portfolio sections below ⤵️
    Featured Skill Mobile App Development
    Flutter Stack
    Mobile Development Framework
    Mobile App
    Android
    iOS
    AI Mobile App Development
    Mobile App Improvement
    Kotlin
    Mobile App Development Consultation
    Python
    Swift
    Android App Development
    iOS Development
    Flutter
  • $35 hourly
    • 5.0/5
    • (21 jobs)
    Full-cycle iOS and Android Application development agency from Zaporizhzhya, Ukraine. Website-portfolio: [please ask for the link] Full-cycle means that we provide services at every stage of iOS and Android application development process. We grow our business by helping our customers to grow theirs. We build iOS apps (iPhone, iPad) and Android apps (phone and tablet) of any complexity or style (material style, flat style): - delivery and ordering systems related applications - logistics mobile applications - marketplace apps - video and chat applications, WebRTC / VoIP, socket connection - booking mobile apps - online TV applications - educational applications - applications for online stores - cleaning services - in-app purchases and in-app subscriptions related apps - iOS apps with iOS specific features - Android material apps with Android specific features - AndroidTV applications - you tell it - we do it iOS skills include but not limited to: - Swift 3 / Objective-C - iOS SDK, xCodeb - Protocols: JSON-RPC, XML, RPC, SOAP, REST. - Integration with existing social networks: Facebook, Twitter, Vkontakte, G+ - 2D games: Cocos2D, Cocos2Dx - E-books (static or interactive), Newsstand - Databases: SQLite, CoreData - BLE 4.0 - Mobile advertisement: iAd, AdMob, AppLeads, Flurry, AdWhirl - Other servises and SDKs: Braintree, Liqpay, Yandex.Money, Branch, Maps (OSM, Google, Apple), LinPhone, FrozenMountain, ooVoo, Flurry Analytic, Google Analytics, Crashlytics, Test Flight, other Android: - Java / Kotlin - Encryption: OpenGPG. - Protocols: JSON-RPC, XML-RPC, SOAP, TCP/IP. - simple applications OpenGL ES - Integration with social networks (Facebook, Twitter, Vkontakte, MailRu, Odnoklassniki), Google services (e.g. Youtube, Google Cloud Printing), Payment gateways (Braintree, PayPal, Liqpay, Yandex.Money) - Interaction with external devices (BLE 4.0/SPP/USB). - Android SQLite - Google Billing, in-apps - VoIP and WebRTC integrations React Native skills: - TypeScript - Node.JS (MERN stack) - JavaScript - Redux, - ES6+ - MongoDB - HTML5, React, CSS - Redux - Material UI Web technologies stack: - React.js, - Angular.JS, Angular 2+ - Laravel (PHP framework), - Symfony (PHP framework), - Node.JS, - VueJs - Express.js, - Bootstrap, - Jquery - Integration with social networks (Facebook, Twitter, Vkontakte, MailRu, Odnoklassniki), Google services (e.g. Youtube, Google Cloud Printing), Payment gateways (Braintree, PayPal, Liqpay, Yandex.Money) - Protocols: JSON-RPC, XML-RPC, SOAP, TCP/IP and much much more. You come to us with an abstract idea and after time we’ll submit a fully functional app to AppStore or Google Play Market. We create Tech Specs documentation, mockups, app designs, development itself, application updates as well as upgrades, along with many other services more or less connected with iOS and Android development.
    Featured Skill Mobile App Development
    Web Development
    Vue.js
    App Development
    User Interface Design
    iPad App Development
    Mobile UI Design
    Kotlin
    Swift
    Flutter
    React
    Node.js
    iOS Development
    Android App Development
    Android
  • $55 hourly
    • 4.8/5
    • (58 jobs)
    We specialize in Full-cycle Development and have over 10 years of experience in the IoT / embedded field. My team and I have a proven track record of success, and we collaborate with industry titans like Avnet, Microchip, and AWS. If you're looking for a full-cycle development team to cover your IoT device development needs, you've come to the right place. Hello, future partner! A meaningful conversation is at the heart of every successful project. Let's have one! We are experts in: ⥤ IoT ⥤ Embedded Systems – hardware / embedded software / sensor integration ⥤ Firmware Development ⥤ Raspberry Pi / Arduino modifications ⥤ Web Software Development ⥤ UI/UX Design ⥤ Desktop Development ⥤ Cloud Development ⥤ Industry 4.0 – Equipment diagnostics ⥤ Mobile Development (iOS and Android) My team and I provide support throughout the whole development cycle: Concept creation ⟹ Prototyping and testing ⟹ Successful release ⟹ Support Technology stack includes: ➟ C / C++ ➟ Qt / QML ➟ Raspberry Pi ➟ Arduino ➟ ESP32 / STM32 / ESP8266 ➟ Sensors ➟ Blockchain ➟ Cryptonote ➟ Javascript (Node, React, Angular) ➟ AWS IoT Core / Azure IoT Hub ➟ HTML ➟ CSS We also have obtained ISO9001 / ISO27001 certificates to give you peace of mind. Whether you are new to the connected devices industry or looking to improve your current solutions, I can provide expert guidance with over a decade of experience and PhD in electronics. Let's kickstart a conversation and explore how we can work together to transform this world digitally! I'll gladly answer any questions and provide any valuable insights on your product idea.
    Featured Skill Mobile App Development
    Circuit Design
    PCB Design
    Internet of Things Solutions Design
    Electronics
    Firmware Programming
    Firmware
    Microcontroller Programming
    Embedded System
    AWS IoT Core
    Python
    Node.js
    API
    Internet of Things
    JavaScript
  • $32 hourly
    • 5.0/5
    • (61 jobs)
    ⭐️ Among the top 3% performers on Upwork (with a Bonus Package👇), 100+ satisfied clients, 14,500+ hours worked If you're looking for a team that ensures your product is built right the first time - on time and within budget - I’ve got you covered. [WORD-FOR-WORD FEEDBACK]: 🔶 “Andriy and his team deliver high-quality development with a customer-driven mindset. Their passion and responsiveness via Slack & Jira have been outstanding.” - Daniel Wiener, CEO, Autobound 🔶 “Andriy improved our system’s efficiency, reliability, and user interaction. His deep technical expertise and flexibility stood out.” - Alex Babich, CEO, Nuravine 🔶 “Softonix is a great development partner - highly skilled, communicative, and structured. Their two-week sprint approach kept everything on track.” - Chris McShane, CEO, Spencer 3D [WHAT I DO BEST] ❇️ MVP development that moves fast without sacrificing quality, AI automation, and scalable web & mobile solutions tailored to your business goals. ❇️ Technologies: - Vue.js (Nuxt.js) | React.js (Next.js) | Angular | TypeScript - Flutter (Dart, Bloc) - Unity (ARKit, Niantic Lightship) - Node.js (NestJS, ExpressJS, Koa) | .NET - PostgreSQL | GraphQL | MongoDB - Socket.IO, Twilio API - Responsive UI | Cross-browser compatibility - Git flow | CI-CD | Pipelines - Agile (Scrum, Kanban) using Jira/Asana/ClickUp ❇️ Clients: SMBs & Enterprises in Automotive, AI/ML Automation, Education, Logistics, and E-commerce. [BONUS PACKAGE]: As the Founder & CEO of Softonix, I’ve helped over 100 clients navigate complex tech challenges - balancing speed, scalability, and cost-effectiveness. Having a team of engineers behind me means clients get the best of both worlds - the flexibility of a freelancer with the reliability of a full-scale team when needed. Flexible engagement options based on your project needs: 🔹 Staff Augmentation – Need extra hands on your project? Get an experienced developer embedded into your existing team, ensuring a smooth workflow and increased development velocity. 🔹 Turnkey Project - Looking for a fully managed, end-to-end development solution? From architecture to deployment, let me handle everything - delivering a market-ready product with a structured, milestone-based approach. [WHAT SETS ME APART] ⚡ No one-size-fits-all solutions. Every product is unique, and so is the approach. Let me tailor your project for scalability, efficiency, and long-term success. ⚡ Value Upfront with Business Analysis. Before a single line of code is written, the best strategy, key workflows, and feature prioritization should be mapped out - ensuring a solid foundation for development. ⚡ End-to-End SDLC Expertise. From discovery to deployment, let me and my team cover all stages of the software development lifecycle (SDLC) - minimizing risks and maximizing efficiency. ⚡ Transparent & Agile. Expect weekly updates, iterative releases, and a results-driven approach - so you always know where your project stands. [WORKFLOW]: I always use a step-by-step approach - ensuring your product is built future-proof from day one: 1️⃣ Discovery Phase – Aligning business goals with the right tech stack & architecture before development starts. 2️⃣ Product Design & UI/UX – Creating Figma-driven, user-centric interfaces for an intuitive user experience. 3️⃣ Agile Development – Building scalable, high-performance web & mobile apps using Vue, React, Node/.NET, Flutter, Unity, and more. 5️⃣ QA & Performance Optimization – Ensuring stability, security, and peak performance through rigorous testing. 6️⃣ Cloud & DevOps – Leveraging AWS, GCP, Docker, Kubernetes, and serverless deployments for reliability and scalability. 7️⃣ Long-Term Support – Dedicated to complex, long-term projects, ensuring continuous growth and improvement. 8️⃣ Seamless Collaboration – Staying in sync 24/7 with real-time updates via Slack, Microsoft Teams, Jira, Asana, or ClickUp. Great products don’t build themselves (yet). Let’s make yours happen - drop me a message, and we’ll kick things off!
    Featured Skill Mobile App Development
    Minimum Viable Product
    AI Platform
    TypeScript
    JavaScript
    Full-Stack Development
    Angular
    .NET Core
    Next.js
    AR & VR
    Unity
    Flutter
    Node.js
    React
    Vue.js
  • $35 hourly
    • 4.4/5
    • (21 jobs)
    𝗖𝗹𝗶𝗲𝗻𝘁-𝗰𝗲𝗻𝘁𝗿𝗶𝗰 𝗙𝘂𝗹𝗹-𝘀𝘁𝗮𝗰𝗸 𝗪𝗲𝗯 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 (JavaScript, TypeScript, Node.JS, Nest.JS, Express, Next.JS, React.JS, Vue.JS, React Native, WebRTC) with 𝟭𝟳 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 in custom software development and AI, Completed 𝗼𝘃𝗲𝗿 𝟳𝟬+ 𝗪𝗲𝗯 application & 𝗮𝗻𝗱 𝗠𝗼𝗯𝗶𝗹𝗲 application of various complexity for startups, scaleups and enterprises. Build your software with AgilePulse™ empowered by transparent processes, quality control systems and engineering excellence. 🦾 𝗠𝗬 𝗖𝗢𝗥𝗘 𝗧𝗘𝗖𝗛 𝗘𝗫𝗣𝗘𝗥𝗧𝗜𝗦𝗘 | 𝗦𝗘𝗥𝗩𝗜𝗖𝗘𝗦: ⭐ WEB APPLICATION DEVELOPMENT: I specialize in building modern, scalable web applications using technologies like JavaScript, TypeScript, Node.JS, React.JS, Vue.JS, Angular, .Net, and Python. My expertise as software developer ensures high performance, security, and user-friendly interfaces tailored to your business needs. ⭐ MOBILE APP DEVELOPMENT: I create responsive, cross-platform mobile applications for iOS and Android. My toolkit includes React Native, Swift, Kotlin, and Java Android to deliver smooth, feature-rich mobile experiences for your users. ⭐ DESIGN ARCHITECTURE: My design architecture services include defining architecture attributes, crafting architecture descriptions, and developing solution and enterprise architectures. I am proficient in migration, monolithic to microservice transformations, serverless architecture, scalability design, security protocols, and network topology. I visualize complex systems using class and component diagrams, fault tolerance designs, UML, and tools like DrawIO. ⭐ CLOUD: I provide comprehensive cloud services using AWS and Azure to ensure your applications are secure, scalable, and highly available. ⭐ DATABASES: My database expertise spans a variety of relational and NoSQL databases, including MongoDB, PostgreSQL, MSSQL, MySQL, and others, to provide fast, efficient, and secure data storage solutions. ⭐ BROWSER EXTENSION DEVELOPMENT: I develop powerful browser extensions to enhance user experience and productivity. My skills cover JavaScript, browser automation, Chrome plugins, Google Chrome extensions, and LinkedIn automation, enabling seamless integrations and custom workflows. 𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗜𝗘𝗦 Real-time communication / Chat & messaging software / Video-conferencing / Telecommunication / FinTech / E-commerce tech / AI & Machine Learning / Browser Extensions / IoT / Education / EduTech / E-Learning / Real Estate / Logistics & Transportation / Marketplaces / Retail / HRTech / HealthCare 🤝🤝🤝 I'm here to provide you with superior services in building your product. If you need help with Software Architecture design or custom software development, I'll be glad to hear from you 🤝🤝🤝
    Featured Skill Mobile App Development
    React
    Website
    Python
    NestJS
    AI Development
    TypeScript
    Smartphone
    Android
    iOS
    JavaScript
    Web Application
    API Integration
    Web Development
    Node.js
  • $30 hourly
    • 4.8/5
    • (42 jobs)
    🚀 Hey there! I'm your go-to mobile app wizard! 😃 I've been on a journey, helping startups and businesses bring their ideas to life with amazing mobile apps. Together, we've secured a whopping $10.5 million in investments! 🌟 These apps? Well, they've become a part of millions of people's lives and have even brought in over $300,000 from users who just couldn't get enough. Ready to make some magic happen? Let's chat! 📱 Having amassed over seven years in software development, with a dedicated six years honing my skills in crafting sophisticated applications for both iOS and Android platforms, I excel in developing intricate software utilizing Swift, SwiftUI, RxSwift, Objective-C, Java, and Kotlin. My portfolio includes: ✅ Client-server applications utilizing REST/GraphQL APIs (Apollo). ✅ Productivity tools ✅ Social networking applications ✅ Health and wellness platforms ✅ Sport applications ✅ Utility software ✅ AI-driven solutions, ChatGPT. ✅ Audio player apps I have a robust foundation in Object-Oriented Programming and Design (OOP/OOD). My skill set also extends to networking, Realm, and CoreData. I'm an advocate for design patterns and adhere to development methodologies like Scrum, and Agile, always aiming to enrich the development process with my insights. Key Skills: ✔️ iOS Development: Swift Programming, Objective-C, Xcode, Interface Builder, UIKit, Auto Layout, Core Data, Core Animation, SwiftUI, Combine, iOS Human Interface Guidelines, Core Bluetooth, Multithreading, Unit Testing, Debugging, App Store Submission, In-App Purchases, Performance Optimization, Dependency Management (CocoaPods, Carthage), Push Notifications, Localization, Facebook SDK, Google SDK, Firebase, Redux, TCA. ✔️ Android Development: Java/Kotlin Programming, Android Studio, XML Layouts, Activities and Fragments, Material Design, Android SDK, SQLite/Room Database, Gradle, Android App Architecture, Push Notifications, Firebase, RESTful API Integration, Recycler View, Dependency Injection (Dagger, Hilt), Jetpack components (ViewModel, LiveData, Navigation), UI/UX Design, Responsive Design, Geolocation and Maps (Google Maps API), Performance Tuning, Data Binding, Android NDK (Native Development Kit), Gradle Plugins, App Distribution, Accessibility, Firebase. ✔️ Cross-platform app development: Flutter, Dart, In-App Purchases, Performance Optimization, Push Notifications, Localization, Facebook SDK, Google SDK, Firebase, Redux, TCA.
    Featured Skill Mobile App Development
    AI Mobile App Development
    Smartphone
    UI/UX Prototyping
    Mobile App
    Flutter
    Android App Development
    SwiftUI
    Health & Fitness
    In-App Purchases
    Swift
    Firebase
    Kotlin
    iOS
    Android
  • $20 hourly
    • 5.0/5
    • (8 jobs)
    Hi there! My name is Valeriia and I`m a Mobile app developer with huge experience. Yeah, I mean it – ✨huge experience.✨ You are looking for modern, user-friendly, and professional app? Text me! I know exactly what you need. I guess you are interested in my tech skills. Let me show! 📌For iOS: Programming Languages: Objective-C, Swift iOS (UlKit, SwiftUI, Combine, Xcode, Core Data, MapKit, AVKitCore Graphics, Core Animation, Core Location, Core Motion, Storyboard, Foundation) Architecture Pattern (Clean-Swift, MVC, MVP, MVP+C, MVVM+С, Viper, Redux) Patterns (factory, builder, fabric, strategy, delegation, mediator, singleton, adapter, dependency injection, service locator, coordinator, router) CI/CD (Fastlane, Jenkins) Databases (SQLite, MySQL, NoSQL, Realm) Concurrency, KVC/KVO, ARC, REST API, Push Notifications/Local Notifications, KeyChain, WebRTC, Multithreading, MessageKit, PushKit, StoreKit, FSCalendar, Alamofire, SwiftGen, AutoLayout, CocoaPods, Table View, Collection View, UIWebView, Popovers, Google map API, Firebase push notifications, JSON, Autorisation, AFNetworking, SDWebImage, MagicalRecord, Firebase, RxSwift, RxCocoa, Crashlytics, Fabric, Bluetooth, Apollo, GraphQL, Google SDK, GoogleMaps, ARKit, UnitTest 📌For Android: Programming Languages: Java, Kotlin Technologies: Android SDK, OOP, RxJava/RxAndroid, Clean Architecture, Retrofit, LivaData, ViewModel, MVP, MVVM, MVI, Room, Koin, Retrofit 2, Gson, Moshi, Material design, CameraX, ExoPlayer, Daylimotion Player SDK, Google Cast, XMPP, WebRTC Google API’s (Maps API, Places API, Elevation API, etc.), Google Analytic, Chrome Custom Tab, Push Notification (GCM/FCM), REST, Activity,Fragments, IntentService, Observer, Canvas, hotspot, DI (Dagger 2 , Hilt), Multithreading (JobScheduler, Threads, Rx), VOIP, AWS, Chromecast, Android lifecycle components, Android annotation, custom views, AR Core, Epoxy, Data Binding, Flow, Coroutines, Jetpack Compose, KMP, Lottie, Microsoft Spech Recognition, OKHTTP, Glide Moreover, I have experience in various domains, such as - FinTech (Banking, Payments), E-commerce, IoT, Healthcare, InsurTech, Business Apps, Social, New apps, Telecommunications, Apps with Wearable Devices, Entertainment/ Media Logistics/Travel and tourism. I also have experience with different trend deployment solutions such as Internet of Things (IoT), Artificial Intelligence & Machine Learning. Impressed? And it`s before you`ve seen case studies 😋By the way, about case studies, you really have to see them. You can find out more about my recent projects and used technologies by looking through it in my portfolio. If you need your app to be done professionally and clear, you might need me. I can provide you the most modern and competitive solution! 💎 Wow, you read this far. I'm glad because I want to tell you what else you can get by hiring me or the CHI Software agency I work for: ▪️ IT consulting ▪️ Staff augmentation ▪️ Product development ▪️ Web development ▪️ Mobile development ▪️ Software testing & QA ▪️ UI/UX design ▪️ DevOps Yes, you are right! We can provide you a full-development lifecycle including BA/PM and all engineers you need! Send me a message whenever you’re ready, and let's bring your idea to life together! 🤝
    Featured Skill Mobile App Development
    CI/CD
    Core Data
    Flutter
    Clean Architecture
    Android
    iOS
    Kotlin
    Java
    RESTful API
    Google APIs
    UIKit
    Swift
    Room
    Objective-C
  • $13 hourly
    • 5.0/5
    • (4 jobs)
    ⭐⭐⭐⭐⭐ - "I had the pleasure of working with Ihor on my project and found him to be very professional. He is very experienced and knowledgeable, always available when needed. He was very quick to implement the functionality I requested with good quality. He is also a very easy person to work with. I will definitely hire him for any future project and would highly recommend him for any team." - most recent feedback on one of our contracts. Hello 👋, Do you need a professional website, server, mobile app?💻 I can help you with: ✅ Building a website from scratch that will be displayed correctly on different devices and will be convenient to use; ✅ Building a Web Platform; ✅ Building a Web Portals; ✅ Building a Web Applications ✅ Building a server ✅ Building a full-stack web app ✅ Fix bugs on any site ✅ Change design. ✅ Add new modules. ✅ Anything else – invite me to your project, and we can discuss what can be done. I am a Front-End Developer / Full Stack Developer / Mobile Developer experienced in creating apps with React, React Native, and Express.js. 📋. In my spare time, I like doing projects with new technologies to improve my skills and expand my knowledge. Web Application Development ✅ E-Commerce website development ✅ MEAN Stack Development ✅ Node JS Development ✅ MERN Stack Development ✅ React JS Development ✅ Mobile Development Skills: ✔ React / React Native / Next.js / TypeScript ✔ Node.js / Express / Nest.js ✔ Redux ✔ JavaScript / TypeScript / ES6/ES7 ✔ HTML / CSS / SASS, Bootstrap 5, MUI (Material-UI) / Chakra UI / Tailwind CSS ✔ REST API / Axios / Swagger / Socket.io ✔ Git / Github / Terminal / Docker ✔ MongoDB, SQL, PostgreSQL. Kind Regards! Ihor
    Featured Skill Mobile App Development
    Socket.io
    Expo.io
    API
    React Native
    MongoDB
    Web Development
    Bootstrap
    React
    Website
    TypeScript
    Next.js
    Redux
    ExpressJS
    JavaScript
  • $20 hourly
    • 5.0/5
    • (10 jobs)
    Hi Upworkers! I'm a Full-Stack developer with over 𝟓 𝐘𝐄𝐀𝐑𝐒 of experience in Javascript, React, React Native, Node.js and 𝟏𝟓+ 𝐒𝐔𝐂𝐂𝐄𝐒𝐒𝐅𝐔𝐋𝐋𝐘 𝐂𝐎𝐌𝐏𝐋𝐄𝐓𝐄𝐃 𝐏𝐑𝐎𝐉𝐄𝐂𝐓𝐒 Code creator at your service! 💻 Got dreams? I've got the skills to code them into reality. Let's chat about turning your visions into a tech-powered masterpiece! My Top Talents include, but are not limited to: 🔸React/React Native: Cross-platform mobile/web development. 🔸JavaScript/TypeScript: Scalable, dynamic application coding. 🔸Node.js/Express: Server-side API and service development. 🔸Redux/Context API: State management. 🔸Firebase/AWS: Cloud database, authentication, serverless. 🔸GraphQL/REST: API integration. 🔸Native Modules: React Native extension. 🔸CI/CD (GitHub Actions, CircleCI): Automated deployment. 🔸Docker: Containerization. 🔸PostgreSQL/MongoDB: Database management. 🔸WebSockets/Socket.io: Real-time communication. 🔸Tailwind CSS/Sass: CSS styling. I'm constantly working on numerous side projects, which means I'm constantly introduced to dozens of languages and libraries. If your requested library isn't listed below - no problem. I can still get things done, fast. ◼ Fintech: Scalable financial platforms with real-time data. ◼ E-commerce: Integrated payment gateways and inventory systems. ◼ Healthcare: HIPAA-compliant patient management and telemedicine. ◼ Logistics: Real-time tracking and fleet management. ◼ TravelTech: Booking systems and travel management tools. Send an invite and let me assist with any Full-Stack development needs!
    Featured Skill Mobile App Development
    Web Development
    Firebase
    CSS
    HTML
    MongoDB
    Tailwind CSS
    Redux
    NestJS
    Node.js
    Next.js
    React Native
    React
    TypeScript
    JavaScript
  • $20 hourly
    • 5.0/5
    • (4 jobs)
    Hey! I'm a Full-Stack JavaScript Developer with 6+ years of experience building effective web applications in various industries. I enjoy collaborating with teams or working independently, always focusing on turning ideas into reality. Challenging tasks are not a problem for me as I have a strong desire to grow. I dream of becoming the best in my field! I work with JavaScript, primarily using React or Next.js and Tailwind CSS for UIs. My state management tools are Redux, Zustand, or MobX. For mobile apps, I develop in React Native using CLI or Expo, with Xcode and Android Studio. On the back end, I use Node.js frameworks like Express and Nest.js, alongside AWS and Firebase. I'm also experienced in integrating Stripe for payments and subscriptions. If you are looking for a professional to bring your projects to life, I will be happy to help you! 🗑️ 𝐅𝐑𝐎𝐍𝐓 𝐄𝐍𝐃 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐌𝐄𝐍𝐓 ◆ 𝐋𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐬: JavaScript / TypeScript / HTML / CSS ◆ 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬: React / Next.js / Tailwind CSS / Bootstrap ◆ 𝐋𝐢𝐛𝐫𝐚𝐫𝐢𝐞𝐬: MaterialUI / ChakraUI / jQuery ◆ 𝐒𝐭𝐚𝐭𝐞 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: Redux / MobX / Zustand / React (TanStack) Query ◆ 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬: AWS / GitHub / Bitbucket / Docker / Vercel / Azure / Firebase / Supabase 🗑️ 𝐁𝐀𝐂𝐊 𝐄𝐍𝐃 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐌𝐄𝐍𝐓 ◆ 𝐋𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐬: JavaScript / TypeScript ◆ 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬: Node.js / Nest.js / Express.js ◆ 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬(𝐒𝐐𝐋): SQLite / MSQL / MySQL / PostgreSQL ◆ 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬(𝐍𝐨𝐒𝐐𝐋): Firebase / Redis / MongoDB / DynamoDB ◆ 𝐎𝐭𝐡𝐞r: OpenAI API / Stripe / Twilio / Auth0 / Sockets / CI/CD pipelines 🗑️ 𝐌𝐎𝐁𝐈𝐋𝐄 𝐀𝐏𝐏 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐌𝐄𝐍𝐓 ◆ 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬: Android / iOS / iPadOS ◆ 𝐋𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐬: JavaScript / TypeScript ◆ 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬: React Native CLI / Expo ◆ 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: Supabase / Firebase / AWS ◆ 𝐓𝐨𝐨𝐥𝐬: Android Studio / Apple Xcode ◆ 𝐎𝐭𝐡𝐞r: GitHub / Bitbucket / Azure / OpenAI API / Push Notifications
    Featured Skill Mobile App Development
    MERN Stack
    MongoDB
    ExpressJS
    Node.js
    Expo.io
    React Native
    Tailwind CSS
    TypeScript
    JavaScript
    Full-Stack Development
    Web Development
    Front-End Development
    Next.js
    React
  • $24 hourly
    • 5.0/5
    • (8 jobs)
    Hi👋 I make apps and create simple solutions that help businesses grow. With 4 years of experience, I enjoy working with teams and turning ideas into real, easy-to-use tools. I’m all about finding the best way to solve problems and make things work better I worked on making solutions for things like e-commerce, fintech, logistics and healtcare. I focus on making tools that are simple to use and work well 🔧 Skills Overview 𝙁𝙧𝙤𝙣𝙩𝙚𝙣𝙙: 🗝 React & Next.js: Build dynamic UIs and fast, optimized apps 🗝 UI/UX Design: Responsive interfaces with SCSS, Bootstrap, and MUI, Tailwind CSS & Sass 🗝 GraphQL & RESTful APIs: Smooth data integration and third-party connections 𝙈𝙤𝙗𝙞𝙡𝙚 𝘼𝙥𝙥 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙢𝙚𝙣𝙩: 🗝 React Native: Skilled in building cross-platform apps with React Native, Expo, and CLI 🗝 Deployment: Proficient in App Center, Firebase, and TestFlight 𝘽𝙖𝙘𝙠𝙚𝙣𝙙: 🗝 Node.js & Nest.js: Expertise in scalable backend systems 🗝 Databases: Experienced with MongoDB, SQL, and Firebase 🗝 Native Modules: Advanced backend extensions for custom needs 𝘾𝙡𝙤𝙪𝙙 & 𝙍𝙚𝙖𝙡-𝙏𝙞𝙢𝙚 𝙎𝙤𝙡𝙪𝙩𝙞𝙤𝙣𝙨: 🗝 AWS: Serverless, S3, and cloud-based apps 🗝 Real-Time Communication: WebSockets, Socket.IO 🗝 CI/CD: Automated deployments via GitHub Actions ⭐️𝙒𝙝𝙖𝙩 𝙄 𝙤𝙛𝙛𝙚𝙧: With 4 years of experience, I create simple and easy-to-use apps and websites that help businesses grow. I make sure everything works smoothly and looks great. I turn ideas into real tools that help people, and I focus on making things easier and better for everyone who uses them. If you need something that works well and solves problems, I’m here to help! 💬𝐆𝐨𝐭 𝐪𝐮𝐞𝐬𝐭𝐢𝐨𝐧𝐬? 𝐈’𝐯𝐞 𝐠𝐨𝐭 𝐚𝐧𝐬𝐰𝐞𝐫𝐬. 𝐓𝐞𝐱𝐭 𝐦𝐞 𝐭𝐨𝐝𝐚𝐲! 🔑𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬 Back-End Development, GraphQL, Material Design, MongoDB, JavaScript, Android App Development, WebSockets, React Native [iOS, Android], Nest.js, Stripe, Data Privacy, Material-UI, Firebase Cloud Firestore, Express.js, Push Notifications, Algorithms, SendGrid, Web Application, 3D Visualization, CloudKit, RESTful APIs, Mobile SDK, TypeScript, S3, Charts, Node.js, Google Maps, Redux, SQL, REST API, Mobile Payments, Firebase Distribution, Performance Optimization, Figma, Security, Data Analysis, Firebase Realtime Database, React.js, PHP, iOS Development, UX/UI Design, Socket.IO, EC2, Mobile App Development, App Center, Big Data Processing, Tailwind CSS, Bootstrap, Cloud Platforms, Core Bluetooth, Algorithms, Next.js, React Bootstrap, E-commerce Website, Data Privacy, PostgreSQL, SendGrid, ReactJS, Webpack, React Native, iOS Development, MongoDB, MapBox, Web Application, API Design, Angular 2+, GraphQL, Material-UI, TestFlight, Firebase Realtime Database, Security, Firebase Cloud Firestore, Python, Cloud Platforms, Google Play Store, Redis, WebSockets, Software Development, UX/UI Design, Responsive Design, UX/UI Design, Performance Optimization, RESTful APIs, Figma, App Store, Redis, Socket.IO, Mobile SDK, RESTful APIs, ReactJS, PostgreSQL, Amazon Web Services (AWS), SendGrid, JSON, PHP, Twilio, Data Analysis, Big Data Processing, Algorithms, Mobile Payments, Charts, Mobile App Development, Express.js, E-commerce Website, React.js, Next.js, Web Design, Firebase Cloud Firestore, React Native, SQL, App Store, Material Design, DynamoDB, Analytics, React Native (iOS, Android), Node.js, API Design, Back-End Development
    Featured Skill Mobile App Development
    Full-Stack Development
    Back-End Development
    Front-End Development
    Next.js
    NestJS
    Redux
    Tailwind CSS
    JavaScript
    TypeScript
    MongoDB
    Node.js
    MySQL
    React
  • $18 hourly
    • 5.0/5
    • (8 jobs)
    ✅ 𝟱+ 𝗬𝗘𝗔𝗥𝗦 𝗘𝗫𝗣𝗘𝗥𝗜𝗘𝗡𝗖𝗘 ✅ 𝟏𝟎+ 𝗣𝗥𝗢𝗝𝗘𝗖𝗧𝗦 𝗖𝗢𝗠𝗣𝗟𝗘𝗧𝗘𝗗 I'm a Full-Stack JavaScript Developer with over five years of experience, specializing in creating tailored solutions that deliver tangible results. My expertise spans both front-end and back-end development, focusing on React, Next.js, Node.js, Express.js, and React Native CLI/Expo for mobile applications. I have a comprehensive understanding of the entire development lifecycle and can engage at any stage, from initiating new projects to refining existing ones. My goal is to provide solutions that align seamlessly with your business objectives. If you believe my skills could benefit your business, please don't hesitate to reach out. I'm eager to discuss your needs and explore the best path forward together. Below, you'll find a detailed overview of my technical expertise. I look forward to the opportunity to collaborate with you ............................................................................................................................................................................................ 𝐅𝐑𝐎𝐍𝐓-𝐄𝐍𝐃 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐌𝐄𝐍𝐓 ✅ Frameworks and Tools I love working with cutting-edge frameworks like React and Next.jsto craft dynamic web applications. By leveraging awesome libraries like Material-UI, Chakra UI, and ShadCN, I can speed up the development process while keeping the design sleek and user-friendly. For state management, I rely on powerful tools like Redux, Zustand, or React Context. Plus, I ensure smooth collaboration and version control with Git, making sure everything stays organized and efficient. ✅ UI Implementation I love designing responsive interfaces that look stunning and work flawlessly across all devices, whether it’s a desktop, tablet, or smartphone. My daily routine involves crafting UI components with HTML and CSS (including SCSS, Tailwind, or Bootstrap) and seamlessly integrating designs from Figma or Adobe XD. It’s all about creating smooth and intuitive user experiences! ✅ Interactive Components I enhance user engagement by adding interactive elements using JavaScript or TypeScript, implementing dynamic features such as forms, notifications, modals, and animations. ✅ Speed Optimization Boosting page load speed by optimizing code, images, and other resources is essential. I use bundling tools like Webpack or Vite to streamline and minimize code size, ensuring everything runs smoothly and efficiently. ✅ Testing and Debugging Writing unit and integration tests with Jest or Cypress ensures component functionality. I diligently debug and resolve issues identified during testing. ............................................................................................................................................................................................ 𝐁𝐀𝐂𝐊-𝐄𝐍𝐃 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐌𝐄𝐍𝐓 ✅ Server Architecture I dive into the server-side of web applications with tools like Node.js, Express.js, or Nest.js, crafting scalable architectures that can handle growing demands. I bring business logic and data processing to life, ensuring everything runs smoothly and without a hitch ✅ Database Design and Management Designing and optimizing relational databases like PostgreSQL, MySQL, or SQLite, and working with NoSQL databases such as MongoDB, DynamoDB, or Redis to handle large data volumes are within my expertise. I configure relationships, indexes, and optimize queries for performance. ✅ API Development Creating RESTful APIs for frontend-backend interaction and implementing GraphQL APIs for flexible data access are part of my skill set. I handle authentication and authorization using JWT, OAuth, or session-based methods and integrate caching mechanisms like Redis to reduce server load. ✅ Third-Party Integrations Integrating payment systems such as Stripe or PayPal, connecting communication services like Twilio or SendGrid, and utilizing cloud platforms like AWS, Firebase, or Supabase for hosting, databases, and serverless functions are tasks I manage proficiently. ✅ Testing and Debugging I write unit and integration tests with Jest, Mocha, or Chai, test APIs using tools like Postman or Insomnia, and configure roles and permissions for different user types to ensure security and functionality. I'm eager to bring my experience and skills to your projects, ensuring they meet your business goals and provide exceptional user experiences.
    Featured Skill Mobile App Development
    MERN Stack
    Expo.io
    React Native
    MongoDB
    ExpressJS
    Node.js
    JavaScript
    Full-Stack Development
    Front-End Development
    Web Development
    Tailwind CSS
    TypeScript
    Next.js
    React
  • $15 hourly
    • 5.0/5
    • (1 job)
    💎 Expert in JavaScript, React.js, React Native, Node.js, Next.js 🏅 Successfully delivered over 20 E-Commerce projects 🌟 5+ years of professional experience I'm an experienced Full-Stack JavaScript Developer with over 5 years of expertise in implementing large-scale commercial projects. My core strength lies in developing high-performance web and mobile applications using modern technologies such as React, React Native, Node.js, Next.js, Nest.js, and Express. With a passion for continuous learning and staying updated on the latest technologies, I excel at delivering innovative solutions tailored to achieve business objectives. My commitment to quality, quick adaptability, and dedication to innovation make me a valuable addition to any team aiming for excellence in the tech industry. 💡 Skills: 💻 Front-End Development: 🛠️ JavaScript, React, Next.js, TypeScript 🛠️ Web Development, Web Applications, Web Design 🛠️ HTML5, CSS, SASS, Material UI, Tailwind CSS 🛠️ jQuery, API Integration 🖥 Back-End Development: 🛠️ JavaScript, Node.js, Nest.js, ExpressJS 🛠️ Web Applications, Amazon Web Services 🛠️ MongoDB, API Integration 📲 Mobile App Development: 🛠️ JavaScript, React Native 🛠️ Mobile Development for Android and iOS 🛠️ IDE: XCode, Android Studio, VSCode 🛠️ Third-party APIs (Twilio, Stripe, Google Maps, MapBox, Google Analytics) 🛠️ Tools: TestFlight, App Center, FB Distribution 🔥 Why Choose Me? 🌎 Proven ability to lead full-stack projects from start to finish, ensuring high-quality software solutions using advanced technologies like React, Node.js, and Next.js. 🌎 Extensive experience with JavaScript frameworks, delivering scalable, efficient, and maintainable code for complex web applications. 🌎 Expertise in designing robust software architectures optimized for performance, scalability, and security. 🌎 Commitment to industry best practices, including TDD, CI/CD, and ongoing exploration of emerging technologies. 🌎 Track record of solving complex challenges, optimizing systems, and integrating advanced solutions to exceed project goals. 🌎 Excellent communicator, capable of simplifying technical concepts for stakeholders and fostering team collaboration for project success. 👋 Let me transform your vision into reality with unmatched professionalism and technological expertise!
    Featured Skill Mobile App Development
    Front-End Development
    Next.js
    Mobile App
    Web Development
    Web Application
    HTML
    CSS
    MERN Stack
    Bootstrap
    Redux
    TypeScript
    Node.js
    React
    JavaScript
  • $17 hourly
    • 5.0/5
    • (4 jobs)
    Hi there! 👋 I’m Hryhorii, a seasoned Full-Stack JavaScript & Python Developer with over 6 years of experience transforming ideas into functional, high-performing web applications. My passion lies in creating solutions that blend clean code, modern design, and intuitive user experiences. I specialize in back-end development using Python frameworks like Django and Flask, combined with JavaScript expertise in frameworks such as React.js and Next.js for front-end magic. Whether it’s building a robust API, ensuring seamless user interactions, or optimizing performance, I approach every project with precision and creativity. 🚀 My Core Expertise Back-End Development Python frameworks: Django, Flask, FastAPI Building RESTful APIs with Django REST Framework (DRF) Real-time communication using Socket.io Authentication and security: JWT, OAuth Database management: PostgreSQL, MySQL, SQLite, MongoDB ORM and migrations: SqlAlchemy, Alembic Deployment and scalability with Docker, AWS, GCP, Firebase, Supabase Front-End Development JavaScript and TypeScript Frameworks: React.js, Next.js, Redux UI/UX frameworks: Material-UI, Ant Design, Bootstrap Crafting dynamic, responsive, and user-friendly interfaces 🛠️ My Technical Philosophy Quality First: I prioritize writing clean, maintainable, and scalable code to ensure the long-term success of your application. Performance-Oriented: I don’t just build; I optimize—ensuring speed and reliability are baked into every feature. User-Focused: A great product doesn’t just work; it feels right. I strive to create applications that are intuitive and delightful for end users. ✨ What Sets Me Apart? 1. Strategic Approach: I’m not just a coder; I’m a partner in your vision. I take the time to understand your goals and challenges, offering insights and suggestions to make your project even better. 2. Full-Lifecycle Development: From ideation to deployment, I’m with you every step of the way. My expertise spans the entire project lifecycle, ensuring seamless execution and timely delivery. 3. Communication is Key: Clear and consistent communication is at the heart of every successful collaboration. I keep you informed throughout the process, ensuring there are no surprises—only results. 💡 Let’s Build Something Great Together! If you’re looking for a developer who can deliver more than just code, I’d love to hear about your project. Let’s create an application that not only solves problems but also stands out in today’s competitive digital landscape. Drop me a message, and let’s turn your idea into reality! Key Words: Full-Stack Developer, Web Developer, Mobile App Developer, Software Engineer, Application Development, Web Application Development, Mobile Application Development, Cross-Platform Development, SaaS Development, MVP Development, API Development, Backend Development, Frontend Development, Full-Stack Web Development, Full-Stack Mobile Development, React.js, Next.js, Redux, TypeScript, JavaScript, ES6+, HTML5, CSS3, Tailwind CSS, Material UI, Ant Design, Bootstrap, Webpack, Responsive Design, UI Development, UX Development, User Interface Design, User Experience Design, Single Page Application (SPA), Progressive Web App (PWA), React Native, iOS Development, Android Development, Expo, Firebase, Supabase, App Center, Xcode, Android Studio, Mobile UI/UX, Python, Django, Flask, FastAPI, Node.js, Express.js, REST API, GraphQL API, API Design, API Integration, Server-Side Development, Backend API Development, MySQL, PostgreSQL, SQLite, MongoDB, Database Design, Database Management, SQL, NoSQL, AWS (Amazon Web Services), Google Cloud Platform (GCP), Azure, Docker, Kubernetes, CI/CD (Continuous Integration/Continuous Delivery), DevOps, Cloud Deployment, Serverless, Infrastructure as Code (IaC), Git, GitHub, GitLab, Bitbucket, Trello, Jira, Twilio, SendGrid, Postman, Google Analytics, Chrome DevTools, TestFlight, Google Maps API, Mapbox, Stripe, PayPal, Google Pay, Apple Pay, Worldpay, WebRTC, Socket.io, UI/UX Design, Team Management, Communication Skills, Problem-Solving, Project Planning, Time Management, Agile Methodologies, Scrum, Kanban, Technical Leadership, AI Implementation, Machine Learning (ML), Deep Learning, Natural Language Processing (NLP), Large Language Models (LLM), GPT, Recommendation Systems, Predictive Analytics
    Featured Skill Mobile App Development
    Django
    MERN Stack
    Python
    Back-End Development
    AI Implementation
    JavaScript
    TypeScript
    React Native
    Node.js
    Next.js
    React
    Front-End Development
    Full-Stack Development
    Web Development
  • $20 hourly
    • 5.0/5
    • (4 jobs)
    𝗟𝗘𝗧'𝗦 𝗠𝗔𝗞𝗘 𝗦𝗢𝗠𝗘 𝗪𝗘𝗕 𝗠𝗔𝗚𝗜𝗖 𝗧𝗢𝗚𝗘𝗧𝗛𝗘𝗥 ! It’s great that you’ve taken the time to check out my profile! I’m a Full-Stack JavaScript Developer with 5+ years of experience building solutions for businesses of all sizes across industries like retail, e-commerce, healthcare, tech, education, and SaaS. Responsibility is my top priority, as I believe it’s key to delivering consistent and reliable results. I specialize in both Front-End and Back-End Development, with a strong focus on React, Next.js, Node.js, Express.js, and React Native CLI/Expo for Mobile Development. With a solid understanding of the full development cycle, I’m ready to contribute at any stage, whether it's starting from scratch or supporting ongoing projects. Whether building scalable web apps or mobile solutions, I’m committed to delivering high-quality results that align with your business goals. If you think I can help you and your business, feel free to reach out. We can schedule a call to discuss your needs, see if we’re a good fit, and determine the best next steps for moving forward together. Below, you’ll find a more detailed description of my tech stack. Cheers! ⚙️ 𝗙𝗥𝗢𝗡𝗧-𝗘𝗡𝗗 ............................................................................................................................................................................................ ✅ 𝗧𝗘𝗖𝗛𝗡𝗢𝗟𝗢𝗚𝗜𝗘𝗦 𝗔𝗡𝗗 𝗧𝗢𝗢𝗟𝗦 • Utilize modern frameworks (React, Next.js) to build web applications. • Leverage libraries for faster development (Material-UI, Chakra UI, ShadCN). • Manage application state using Redux, Zustand, or React Context. • Use version control systems (Git) for efficient code management. ✅ 𝗨𝗦𝗘𝗥 𝗜𝗡𝗧𝗘𝗥𝗙𝗔𝗖𝗘 / (𝗨𝗜) 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧 • Create responsive designs that function correctly across all devices (desktop, tablet, smartphone). • Implement UI components using HTML and CSS (including SCSS, Tailwind, or Bootstrap). • Integrate layouts based on designs from tools like Figma or Adobe XD. ✅ 𝗜𝗡𝗧𝗘𝗥𝗔𝗖𝗧𝗜𝗩𝗜𝗧𝗬 𝗔𝗡𝗗 𝗙𝗨𝗡𝗖𝗧𝗜𝗢𝗡𝗔𝗟𝗜𝗧𝗬 • Add interactive elements using JavaScript or TypeScript. • Implement dynamic features such as forms, notifications, modals, and animations. ✅ 𝗣𝗘𝗥𝗙𝗢𝗥𝗠𝗔𝗡𝗖𝗘 𝗢𝗣𝗧𝗜𝗠𝗜𝗭𝗔𝗧𝗜𝗢𝗡 • Optimize code, images, and other resources to improve page load speed. • Configure bundling tools (Webpack, Vite) to minimize code size. ✅ 𝗧𝗘𝗦𝗧𝗜𝗡𝗚 𝗔𝗡𝗗 𝗗𝗘𝗕𝗨𝗚𝗚𝗜𝗡𝗚 • Write unit and integration tests to verify component functionality (Jest, Cypress). • Fix bugs and debug issues identified during testing. ⚙️ 𝗕𝗔𝗖𝗞-𝗘𝗡𝗗 ............................................................................................................................................................................................ ✅ 𝗦𝗘𝗥𝗩𝗘𝗥 𝗟𝗢𝗚𝗜𝗖 𝗔𝗡𝗗 𝗔𝗥𝗖𝗛𝗜𝗧𝗘𝗖𝗧𝗨𝗥𝗘 • Building the server-side of web applications using Node.js, Express.js, or Nest.js. • Designing scalable architectures to support growing workloads. • Implementing business logic, data processing, and ensuring uninterrupted service operation. ✅ 𝗗𝗔𝗧𝗔𝗕𝗔𝗦𝗘 𝗠𝗔𝗡𝗔𝗚𝗘𝗠𝗘𝗡𝗧 • Designing and optimizing relational databases (PostgreSQL, MySQL, SQLite). • Working with NoSQL databases (MongoDB, DynamoDB, Redis) to handle large volumes of data. • Configuring relationships, indexes, and query optimization. ✅ 𝗔𝗣𝗜 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧 • Creating RESTful APIs for frontend-backend interaction. • Implementing GraphQL APIs for flexible data access. • Implementing authentication and authorization (JWT, OAuth, session-based). • Integrating caching mechanisms (Redis) to reduce server load. ✅ 𝗧𝗛𝗜𝗥𝗗-𝗣𝗔𝗥𝗧𝗬 𝗦𝗘𝗥𝗩𝗜𝗖𝗘 𝗜𝗡𝗧𝗘𝗚𝗥𝗔𝗧𝗜𝗢𝗡 • Integrating payment systems (Stripe, PayPal). • Connecting communication services (Twilio, SendGrid). • Utilizing cloud platforms (AWS, Firebase, Supabase) for hosting, databases, and serverless functions. ✅ 𝗧𝗘𝗦𝗧𝗜𝗡𝗚 𝗔𝗡𝗗 𝗗𝗘𝗕𝗨𝗚𝗚𝗜𝗡𝗚 • Writing unit and integration tests (Jest, Mocha, Chai). • Testing APIs with tools like Postman or Insomnia. • Configuring roles and permissions for different user types.
    Featured Skill Mobile App Development
    MERN Stack
    Firebase
    Expo.io
    React Native
    ExpressJS
    Node.js
    Tailwind CSS
    Next.js
    React
    TypeScript
    JavaScript
    Web Development
    Front-End Development
    Full-Stack Development
  • $19 hourly
    • 5.0/5
    • (1 job)
    I am a Software Engineer with a focus on web development, particularly in backend systems. I am seeking long-term opportunities where I can work with TypeScript or JavaScript as the primary language. I am also open to learning new languages and technologies as needed. Here's a quick overview of my experience: Languages: JavaScript/TypeScript, Python backend Frameworks: React Native, React, ExpressJS, Material UI, Apollo, NestJS, Firebase Databases: MySQL, Azure SQL Database Tools: Git Cloud: Azure (Functions / Storage / Database) I look forward to connecting and discussing potential opportunities!
    Featured Skill Mobile App Development
    Expo.io
    Web API
    React Native
    Redux
    GraphQL
    JavaScript
    Next.js
    MongoDB
    Node.js
    React
    Web Application
    Web Development
    App Development
    iOS Development
  • $60 hourly
    • 4.8/5
    • (32 jobs)
    FullCycle Product Development: Our ISO 27001-certified software development team excels in delivering efficient business solutions for clients worldwide, utilizing a wide array of technologies and development tools, including Flutter, React, and Node.js. With over 10 years of experience, our expertise spans Full Stack development, mobile and web application development, UI/UX design, API integration, and AI technologies such as Machine Learning and Data Science. We build enterprise applications using ASP.NET, SQL Server, and WPF, with a strong focus on iOS, Android, and cross-platform solutions. Our team is skilled in custom software architecture, system design, and refactoring, as well as business intelligence and analytics using tools like SSRS, SSAL, and Crystal Reports. We support startups and established companies across core domains including Healthcare, NFT/Blockchain, Fintech, Education, Logistics, and Real Estate. Whether you need a Full Stack Developer or a Mobile Developer, our team is equipped to handle complex development challenges. Our Full Stack Developers and Mobile Developers specialize in creating scalable, secure, and high-performance applications tailored to your business needs. Our comprehensive services cover the Discovery Phase, mobile application development, web development, quality assurance, UI/UX design, software development services for startups, and IT system & software integration. Each Full Stack Developer and Mobile Developer on our team is dedicated to delivering seamless solutions with cutting-edge technology. Trusted by industry leaders such as TOSHIBA, NIVEA, Vestel, University of San Diego, and many more, we are committed to product success, ensuring full support and security throughout our cooperation. Why Choose Us? ✅ : Over 10 years of experience ✅ : Core domains: Healthcare, NFT/Blockchain, Fintech, Education, Logistics, Real Estate ✅ : A highly skilled Full Stack Developer and Mobile Developer team for enterprise solutions Our Services: ✅ : Discovery Phase ✅ : Mobile Application Development with expert Mobile Developers ✅ : Web Development led by top-tier Full Stack Developers ✅ : Quality Assurance ✅ : UI/UX Design ✅ : Data Science and Big Data Analytics ✅ : Artificial Intelligence and Machine Learning ✅ : Software Development Services for Startups, supported by experienced Full Stack Developers and Mobile Developers ✅ : IT System & Software Integration Decent Experience in: ✅ : Building enterprise applications using ASP.NET and SQL Server, ensuring seamless integration for Full Stack Developers and Mobile Developers ✅ : Custom software architecture, refactoring, and system design creation, a core strength of our Full Stack Developer team ✅ : WPF Development, with contributions from both Full Stack Developers and Mobile Developers ✅ : Working with 3rd party integrations through APIs, an essential skill for any Full Stack Developer and Mobile Developer ✅ : Business Intelligence, Analytics, and Reporting tools such as SSRS, SSAL, and Crystal Reports ✅ : Unit testing, Integration testing, and performance tuning, critical for both Full Stack Developers and Mobile Developers ✅ : Extensive expertise in the full software development lifecycle, from architecture design to project implementation and support, ensuring that our Full Stack Developers and Mobile Developers deliver exceptional results With a dedicated Full Stack Developer and Mobile Developer team, we help businesses build high-quality applications that drive success. If you’re looking for an experienced Full Stack Developer or Mobile Developer, we are ready to bring your vision to life!
    Featured Skill Mobile App Development
    AI Development
    Full-Stack Development
    Python
    API
    Web Development
    Next.js
    TypeScript
    Vue.js
    HTML
    CSS
    Node.js
    WordPress
    React
    JavaScript
  • $37 hourly
    • 5.0/5
    • (5 jobs)
    ✨ Mobile App Developer | React Native & Flutter | iOS & Android | Full Stack Solutions ✨ 👨‍💻 About Me I'm a Top-Rated Mobile App Developer with over 6 years of hands-on experience in mobile app development across both Android and iOS platforms. I specialize in React Native and Flutter, delivering robust cross-platform, hybrid, and native apps that scale. As a full stack developer, I can manage everything from backend APIs (Laravel, Node.js) to frontend UIs (React, JavaScript, Swift), giving your project seamless integration from database to device. ⭐What I Offer⭐ ✅ Cross-Platform Development using React Native and Flutter ✅ Hybrid and Native mobile app development for Android and iOS ✅ iOS Development with modern design patterns, animations, and Swift integrations ✅ Building mobile-first, responsive apps as a web developer with mobile UX focus ✅ Developing secure backend APIs using Laravel, Firebase, or Node.js ✅ Product-ready apps from MVP to full-featured SaaS platforms ✅ UI/UX design collaboration using Figma, Adobe XD, Sketch, InVision ⭐Technical Skills & Stack⭐ 💥Mobile: React Native, Flutter, Android SDK, iOS SDK, Swift, Kotlin 💥Backend: Laravel, Node.js, Express, Firebase 💥Frontend: React, Vue.js, JavaScript, HTML/CSS 💥Tools: Figma, Sketch, Adobe XD, InVision 💥Cloud/DevOps: AWS, DigitalOcean, Heroku, Jenkins 💥Project Management: Trello, Jira, Slack ⭐Mobile App Development Process⭐ 1. Discovery – define the product vision, user roles, and core use cases 2. UI/UX Design – create prototypes and wireframes tailored for mobile-first users 3. Development – build mobile apps using React Native, Flutter, or Swift, integrating backend via Laravel/Firebase 4. Testing – QA across multiple devices (Android, iOS) 5. Launch & Support – App Store and Google Play deployment + post-launch iterations 📈 Scalable Mobile Development with React Native In today’s fast-moving market, businesses need apps that are reliable, scalable, and fast to launch. That’s why I rely on React Native for most of my mobile development projects — it lets me build native-feeling apps for both iOS and Android from a single codebase, without sacrificing performance or quality. I've used React Native to develop everything from e-commerce apps and loyalty platforms to social tools and booking systems. With features like real-time sync, push notifications, and secure authentication baked in, I ensure your mobile app is ready to grow with your users. If you're looking for a React Native expert who understands how to build smooth, production-ready mobile experiences — I’m here to help. ⭐By the Numbers⭐ 🔹 30+ mobile apps released for iOS and Android 🔹 20+ apps developed with React Native 🔹 10+ cross-platform apps built using Flutter 🔹 6+ years of experience as a mobile and full stack developer 🔹 100% Job Success Score on Upwork 🔹 15+ MVPs built from scratch using Laravel + mobile frameworks 🔹 Reduced dev costs by up to 50% using hybrid tech 🔹 5+ Swift-based features integrated into iOS apps for native performance 🌟 Why Clients Work With Me 🌿 Multi-stack expertise: From Swift-based iOS modules to Laravel APIs, I can handle it all 🌿 Cross-platform mindset: I help businesses reduce time-to-market using Flutter and React Native 🌿 Design-to-code fluency: I work closely with designers or use your Figma/Sketch files to build pixel-perfect interfaces 🌿 Fast, responsive, and transparent communication 🌿 Solutions, not just code: I care about solving business problems, not just writing lines of code 📱 React Native & Mobile Development Focus React Native has been at the core of my mobile development approach for years. I use it to build fast, reliable apps that feel native on both iOS and Android, while sharing a unified codebase for speed and efficiency. Whether it's integrating APIs, handling complex navigation, or building custom UI components — React Native allows me to deliver smooth, high-performing apps without compromising user experience. My mobile development process ensures that apps load fast, work seamlessly across devices, and meet both technical and business goals. If you're building a cross-platform app that needs to scale quickly, React Native is my go-to choice. 🔍 Looking for... A Flutter developer to build your MVP fast? A React Native engineer who can deploy to both Android and iOS? An iOS developer who understands Swift, mobile UX, and cross-platform tradeoffs? A Laravel full stack developer to build your backend and connect it with mobile? A mobile app developer who can take your idea from Figma to the App Store? Let’s work together.
    Featured Skill Mobile App Development
    User Profile Creation
    Node.js
    Kotlin
    Swift
    App Development
    iOS Development
    Android App Development
    JavaScript
    React
    Flutter
    Smartphone
    iOS
    Android
    React Native
  • $30 hourly
    • 4.9/5
    • (20 jobs)
    Hi, I'm a co-founder of PettersonApps, a top-rated digital agency based in Western Ukraine. I offer my clients development in: - Flutter, React Native - iOS (C, Swift) - Android (Java, Kotlin) - Firebase (Auth, Cloud Functions, RDB, Firestore, Rules) - Web (Backend, Frontend) - React, Angular, Node, RoR, PHP, .NET, Phyton - AI/Macine learning - QA - Rapid prototyping - Design
    Featured Skill Mobile App Development
    Vue.js
    Node.js
    Angular
    Roku Development
    PHP
    BrightScript
    React
    User Authentication
    Kotlin
    React Native
    Android App Development
    Firebase
    iOS Development
    Flutter
  • $44 hourly
    • 3.9/5
    • (12 jobs)
    🥇 Top 2% Freelance Developer on Upwork with 100% Job Success and 4,400+ hours worked 🥇 With a strong focus on Technical Product Ownership, as well as Mobile App Development and Web Applications, I specialise in creating seamless, user-friendly apps for iOS, Android, and Web platforms. My expertise in React, JavaScript, AngularJS, and integrating Blockchain and AI ensures that I can deliver innovative solutions tailored to businesses in the U.S., U.K., and Switzerland. Mobile App Development (iOS & Android) I create high-performance, secure mobile applications using React Native and native methods, ensuring a seamless user experience across both iOS and Android platforms. Web Applications I develop dynamic, responsive web applications using React and AngularJS, optimized for speed and performance across all devices. Blockchain & AI Integration I integrate cutting-edge Blockchain and AI technologies, including smart contracts on Ethereum and Solana, and AI features in apps, ensuring your project stays ahead of the curve. 12-Month Support & Client Needs I offer 12 months of support after launch, addressing updates, issues, or new features to keep your application optimized and aligned with business goals. Why Work With Me? I have a proven track record in driving revenue and managing diverse projects, ensuring that I can deliver exceptional results. My background in UX Design, Business Analytics, Sales, Project Management, and Computer Science allows me to oversee projects and deliver on business objectives efficiently. What I Offer: - 🖥️ Full-stack development (HTML, CSS, JavaScript, React, Flutter,Solidity). - 🚀 Agile Project Management (SCRUM, Agile) for timely, high-quality delivery. - 📊 Data-driven Product Management for sustainable business growth. - 💡 Innovative Problem-Solving to tackle complex challenges. - 🤖 AI Chatbot Integration for better customer service and engagement. Notable Achievements: - 💻 Hardware dApp Blockchain Development: Gained 25% market share in the U.S. NFT market in 10 months. - 📈 Project Performance Improvements: Boosted performance by 50% using SCRUM and unit economics. - 🗣️ AI Chatbot Integration: Reduced response time by 40% with ChatGPT. Let’s Collaborate! Ready to transform your digital ideas into reality? Contact me today, and let's work together. With 12-month support, I'll be a dedicated partner in your project’s success.
    Featured Skill Mobile App Development
    Machine Learning
    Web Design
    API
    Web Development
    Python
    Amazon Web Services
    MongoDB
    Product Management
    Project Management
    React Native
    JavaScript
    AI Mobile App Development
    AI Development
    AI Agent Development
  • $40 hourly
    • 5.0/5
    • (8 jobs)
    I specialize in outsourced projects, from developing applications from scratch, adding new features, and debugging, to testing, bug fixing, refactoring, troubleshooting, and providing customer support. With a keen eye for detail and a passion for problem-solving, I'm dedicated to delivering high-quality work on time and within budget. Let me help bring your project to life! Skills ✅ Programming Language: Java and Python ✅ Technologies: Spring Framework, Hibernate ✅ Cloud: AWS(EC2, Open Search, Lambda, Elastic Beanstalk, S3), Google Cloud ✅ Database: MySQL, PostgreSQL, Oracle DB, MongoDB ✅ Testing: JUnit, Mockito, PowerMockito, JMockit ✅ VCS: Git (GitHub, GitLab, Bitbucket, Gerrit) ✅ Build tools: Maven, Gradle ✅ Operating Systems: MacOS, Windows, Linux ✅ Agile methodology: Scrum ✅ IDE: IntelliJ and Eclipse ✅ Tools: Postman, Swagger, Atlassian products, Redmine My strengths include: - developing web services using a micro-service architecture and creating RESTful services - collaborating with international teams through Scrum methodology - excelling in both team-oriented and individual projects - passionate about exploring new technologies and seeking challenging work with a team of professionals. Don’t hesitate to contact me.
    Featured Skill Mobile App Development
    Node.js
    Smartphone
    Android App Development
    Amazon EC2
    Hibernate
    MySQL
    Amazon S3
    PostgreSQL
    iOS
    Android
    Spring Boot
    Python
    React
    Java
  • $35 hourly
    • 4.9/5
    • (3 jobs)
    Founded in 2015, Embrox Solutions is a product development company based in Ukraine that provides a wide range of unique software, electrical and mechanical services, starting from an idea up to complete product. Since that time we’ve been developing software solutions to large and middle-sized companies in CAD, Energy, Healthcare, Media & Entertainment and other industries. Our specialists combine modern advanced programming techniques with scientific approaches while engineering magic. That is why our solutions are stable in their work, rapid in their performance and flexible in their usage. We do not only qualitatively realize the full cycle of new product development, but also provide further support for established products, consulting, and business analytics.
    Featured Skill Mobile App Development
    CloudApp
    Front-End Development
    Electrical Engineering
    Firmware
    Internet of Things
    Product Development
    Qt Framework
    CAD Software
    Mechanical Engineering
  • $35 hourly
    • 5.0/5
    • (2 jobs)
    👋 Hi! I'm a Senior Mobile App Developer with 5+ years of hands-on experience building scalable, high-performance applications using React Native, TypeScript, and also Flutter. Whether it's crafting beautiful mobile apps from scratch, integrating complex APIs, or optimizing legacy codebases, I bring both technical expertise and a product-focused mindset to every project. I’ve led mobile development teams, worked directly with clients to gather requirements, and successfully delivered solutions in industries like health & wellness, video streaming, fintech, and logistics. My projects have included everything from video call apps with Agora, to delivery tracking systems, to dynamic UI kits using Radix UI and Material UI. Here’s what I bring to the table: - Expert-level React Native & Flutter development - Strong command of TypeScript, Redux, MobX, and modern front-end architecture - API integration (REST, Serverless, AWS Amplify, DynamoDB) - Experience with publishing apps to App Store & Google Play, handling certs and provisioning - Pixel-perfect UI implementation from Figma designs - CI/CD practices, testing with Jest, and version control with GitHub I'm passionate about writing clean, maintainable code and love turning ideas into smooth, user-friendly products. Let's build something awesome together 🚀 🚀 𝐂𝐥𝐢𝐞𝐧𝐭 𝐂𝐨𝐥𝐥𝐚𝐛𝐨𝐫𝐚𝐭𝐢𝐨𝐧: I assist clients in launching their products from scratch, offering services in prototyping, and providing high-quality back-end and front-end development.
    Featured Skill Mobile App Development
    Tablet
    Node.js
    Back-End Development
    Flutter
    Figma
    React
    Smartphone
    iOS Development
    Android App Development
    Web Development
    JavaScript
    Android
    iOS
    React Native
  • Want to browse more freelancers?
    Sign up

How hiring on Upwork works

1. Post a job

Tell us what you need. Provide as many details as possible, but don’t worry about getting it perfect.

2. Talent comes to you

Get qualified proposals within 24 hours, and meet the candidates you’re excited about. Hire as soon as you’re ready.

3. Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

4. Payment simplified

Receive invoices and make payments through Upwork. Only pay for work you authorize.

Trusted by

How do I hire a Mobile App Developer near Lviv, on Upwork?

You can hire a Mobile App Developer near Lviv, on Upwork in four simple steps:

  • Create a job post tailored to your Mobile App Developer project scope. We’ll walk you through the process step by step.
  • Browse top Mobile App Developer talent on Upwork and invite them to your project.
  • Once the proposals start flowing in, create a shortlist of top Mobile App Developer profiles and interview.
  • Hire the right Mobile App Developer for your project from Upwork, the world’s largest work marketplace.

At Upwork, we believe talent staffing should be easy.

How much does it cost to hire a Mobile App Developer?

Rates charged by Mobile App Developers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.

Why hire a Mobile App Developer near Lviv, on Upwork?

As the world’s work marketplace, we connect highly-skilled freelance Mobile App Developers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream Mobile App Developer team you need to succeed.

Can I hire a Mobile App Developer near Lviv, within 24 hours on Upwork?

Depending on availability and the quality of your job post, it’s entirely possible to sign up for Upwork and receive Mobile App Developer proposals within 24 hours of posting a job description.

Looking to hire for long-term or full-time assignments? See how Full-time hiring on Upwork simplifies the process.