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  • $40 hourly

    • 5.0/5
    • (5 jobs)
    🚀 Senior Full-Stack Developer | React.js & Next.js Expert | Scalable Web Apps & Games Hey there! I'm Levan, a React.js & Next.js specialist with 3+ years of experience building high-performance, scalable web applications and interactive games. From architecting complex B2B platforms to developing engaging gambling games, I thrive in creating efficient, modern digital solutions. 🔥 Why Choose Me? ✅ React & Next.js Mastery – Extensive experience with Next.js 13, React.js, Redux, Recoil, and TailwindCSS, delivering optimized and dynamic UIs. ✅ Full-Stack Expertise – Built and led the rewrite of a 60k+ LOC B2B platform, integrating GraphQL, Express.js, MongoDB, and Neo4j for top-tier performance. ✅ Game Development – Developed casino and gambling games with Phaser.js, focusing on RNG security, RTP calculations, and backend scalability. ✅ Performance & Optimization – Implemented lazy loading, caching (Redis), and DB indexing to maximize app efficiency. ✅ Cloud & Deployment – Deployed and managed applications using Vercel, GCP, and AWS, setting up CI/CD pipelines and scalable architectures. ✅ API & Third-Party Integrations – Seamlessly integrated Google Search, Twitter API, Sentry, Mixpanel, and more to enhance functionality. Why Work With Me? ✔ Modern Technologies – I specialize in crafting smooth, interactive, and SEO-friendly applications with the most up-to-date technologies. ✔ Scalability & Performance – I build applications that handle large-scale data efficiently. ✔ Leadership & Problem Solving – I went from junior dev to leading a team of 6, taking ownership of complex projects. 💡 Let’s build something amazing with React & Next.js! 🚀 🔑 Keywords Javascript, Typescript, React.js, Next.js, Node.js, Express.js, Nest.js, MongoDB, Mongoose, Redis, PostgresQL, Prisma, Auth0, MaterialUI, TailwindCSS, Styled Components, ShadCN, Neo4j, Chart.js, D3.js, Phaser.js, Redux, Recoil, GraphQL, Apollo
    Featured Skill Firebase
    Lottie
    Phaser
    NestJS
    PostgreSQL
    TypeScript
    ExpressJS
    React
    MongoDB
    Next.js
    CSS
    GraphQL
    Node.js
    HTML
    JavaScript
  • $40 hourly

    • 5.0/5
    • (5 jobs)
    With over 8 years in mobile development, I specialize in building engaging, high-performance cross-platform mobile applications that stand out in today’s competitive market. My goal is to create seamless, visually appealing user experiences that keep users coming back. From concept to deployment, I’m here to bring your app ideas to life. Here’s a brief overview of my expertise: 🔸 API & Web Requests: Proficient with REST, SOAP, and OAuth, I ensure secure, efficient data communication through JSON and XML. I leverage Firebase for real-time data syncing and storage, with foundational Node.js skills to support backend processes where needed. 🔸 Mobile Development (iOS & Android): Skilled in JavaScript, TypeScript and React Native, I craft mobile apps that provide smooth navigation, optimal performance, and stunning visuals, consistently delivering apps that rate 5/5 stars in stores. 🔸 Feature-Rich Applications: Experienced in integrating essential features like authentication, secure storage, messaging, payments, subscriptions, in-app purchases, AR, maps, notifications, and more for a comprehensive app experience. 🔸 Embedded Hardware Integration: I work with sensors, GPS, accelerometers, cameras, and other hardware integrations to create apps that interact intuitively with devices. Why work with me? 🔸 Proven Results: With over a million downloads and high user ratings, my apps speak for themselves, offering reliability, performance, and user satisfaction. 🔸 Business-Focused Development: I build products with a keen sense of business value, ensuring your app provides a return on investment and aligns with your long-term goals. 🔸 Efficient & Self-Sufficient: I thrive both as a solo developer and in teams, taking ownership of projects and delivering high-quality solutions on time. 🔸 End-to-End Support: I’m committed to guiding you through every step, from consultation to deployment, with ongoing support to ensure your app’s success. Reach me out, and let's build it!
    Featured Skill Firebase
    Git
    Docker
    OpenAI API
    JSON
    XML
    CSS 3
    HTML5
    PostgreSQL
    MongoDB
    Node.js
    TypeScript
    JavaScript
    React Native
    React
  • $35 hourly

    • 5.0/5
    • (22 jobs)
    🧨 Full of energy and motivation 🦖 4+ years of experience 🚀 Startups 📱 iOS | Swift 🔥 AI | ChatGPT | Stable Diffusion 👋 Hey there! I'm an iOS Developer with a decade of full-time software development experience, I am well-equipped to help you fix any issues with your existing application, add new features, or create a brand-new application from scratch. I have knowledge of a vast array of technologies and tools that I've used to create some pretty amazing applications! My Services: 🚀 MVP | MLP | Startup launch | Product Growth consulting 📱 Native iOS Mobile App Development 🧠 Tech advisor 🌐 Backend Development [Firebase, Amplify] Who I work with: 🚀 Startups – Take your idea through the startup lifecycle within a reasonable budget and timeline. 😎 Small & Medium business – Acquire a high-quality expert team and transition your business online. Here are some of the reviews from my clients: ✨ "Excellent communication skills" 💡 "Able to quickly diagnose and fix bugs" 🤝 "Professional and a great team player" 👨‍💻 "Knows their stuff and handles technical tasks with ease" 🚀 "Provides valuable advice and suggestions" Results: ✅ Developed apps with over 300,000+ monthly active users. ✅ A startup gained early adopters for their MVP using TestFlight ✅ A product company increased user base by 40% through scaling their app on to a new platform. Working with me, you will get: 🕵️ Transparent process with various tracking tools and regular meetings. 💬 Prompt responses and concise explanations. 🧠 Expert consulting and tailored advice based on your specific needs. 🔄 Smooth integration with existing workflows and effective collaboration with your team. 🌍 Flexibility to work with clients across different time zones. 📚 Thorough documentation and dedicated support throughout the transition period. If you’re interested in working together, let’s connect! It will be a pleasure for me to help you with achieving your goals. Skills: Swift, Objective C, SwiftUI, UIKit, MVC, MVVM, Clean Swift, URLSession, Storyboards, Auto Layout, Git, CocoaPods, SPM, REST, Push Notifications, Fastlane, TestFlight and many more.
    Featured Skill Firebase
    UI Graphics
    Storyboarding
    Mobile App
    XCUITest
    Apple Xcode
    iOS SDK
    Objective-C
    API Integration
    Swift
    Core Data
    User Authentication
    iOS Development
    UIKit
    iOS
  • $35 hourly

    • 5.0/5
    • (6 jobs)
    * Do you need to develop a native mobile application for iOS using Swift? * Do you have a design for an iOS application in Figma or Sketch? I am a senior iOS developer with more than 7 years of experience developing iOS applications in Swift. I'm not just an iOS developer, I'm a product iOS developer. What does it mean? I know Apple guidelines and can warn you about mistakes in your design so that your app won't be rejected by Apple. I can help you. Just ask me! My achievements in iOS development: - 10,000+ features completed; - 300+ bugs fixed; - 1,000,000+ users - 10,000+ AppStore subscriptions transacted; - 99% crash-free. To reach a goal, I use three components: - Agile/SCRUM to split tasks on sprints to get feedback from users early; - A data-driven approach means means you'll have data from Amplitude/AppsFlyer with which to make decisions; - Subscription services such as Adapty and RevenueCat provide transactions and analytics. How the work is done: - Project estimation and final costs; - Prepare tasks for the first iteration/sprint; - Development of tasks from the first iteration. You can keep an eye on the development process on a task tracker; - Pull request to your repository; - Prepare the build of an iOS app and deliver it to the App Store; - Next iteration, etc. As a result, you'll have a mobile app with the following features: - Understandable and expandable code in Swift based on SOLID principles in the GIT repository; - An iOS application that's 99% crash-free and the App Store will love; - Advanced analytics from Amplitude/AppsFlyer so you can prepare dashboards and charts; - Advanced analytics from subscription services and flexible management of subscriptions. Do you have any questions or ideas about iOS applications? Just ask me! My experience is as a solo iOS developer on different utilities and trackers, as well as super app mobile banking at Tinkoff Bank as a team member of 50+ iOS developers. My skills in iOS development: Swift 5+, Objective C, UIKit, SwiftUI, Multithreading, Memory management, API, JSON, HTML, XML, Networking, Push notifications, CoreData, Combine, SOLID principles, Design patterns, MVC, MVP, MVVM, Coordinators, XCode, GIT, SwiftLint, DI, CI/CD, Firebase, AppStore, VPN, ASO, Amplitude, AppsFlyer, Figma, UX, Agile, Scrum, Kanban.
    Featured Skill Firebase
    Multithreaded Programming
    Mobile App
    Architecture
    JSON
    SQL
    SwiftUI
    Push Notifications
    Core Data
    Apple Xcode
    UIKit
    iOS
    iOS Development
    Objective-C
    Swift
  • $50 hourly

    • 5.0/5
    • (14 jobs)
    Hello! I am a top 1% Expert-Vetted freelancer on Upwork, specializing in Generative AI and Full Stack Engineering. I've led engineering efforts for a Generative AI agency, delivering cutting-edge AI solutions to enterprise clients. Prior to that, I've built software for companies like Disney and Microsoft and managed engineering teams in startups backed by Y Combinator and Sequoia Capital. With a history of top ratings and successfully completed projects on Upwork, my commitment to quality and client satisfaction is demonstrated through the consistent delivery of tailored solutions that meet and exceed expectations. 🎯 Professional Expertise: - Generative AI: Proficient with Large Language Models (LLMs), like ChatGPT, along with expertise in Prompt Engineering, Fine-tuning models, and text-to-image models like Stable Diffusion. - Software Development: Extensive experience in developing scalable web applications using JavaScript, TypeScript, Node.js, and React, among other technologies. - Leadership: Demonstrated ability in leading engineering teams to achieve project goals and deliver high-quality software solutions. 💻 Technical Skills: - Languages: JavaScript, TypeScript, Node.js. - Frontend: React, Next.js, Redux, Gatsby.js. - Styling: CSS, Tailwind, Styled Components, MaterialUI, Bootstrap. - Payment Gateways: Stripe. - Other Technologies: Web Sockets, Browser Extensions, Firebase, Supabase. - APIs: REST, GraphQL. - AI and Machine Learning: ChatGPT, Langchain, Stable Diffusion, DALL-E. - Databases: MongoDB, Firestore, PostgreSQL, MySQL, Pinecone, Chroma. - ORM: Prisma. - Cloud ML: Replicate.com
    Featured Skill Firebase
    Supabase
    ChatGPT API
    Generative AI
    Stable Diffusion
    React Native
    Integration Testing
    LangChain
    ChatGPT
    MongoDB
    PostgreSQL
    GraphQL
    Amazon Web Services
    Node.js
    React
  • $35 hourly

    • 4.9/5
    • (23 jobs)
    Hello, Thanks for having a look at my profile. I've been developing Mobile and Web Apps using Flutter Framework. I have successfully completed 20+ projects from small size to large scale. I'd like to share my knowledge and expertise in your projects and be a valuable part of your project. Looking forward to meeting and working together.
    Featured Skill Firebase
    UI/UX Prototyping
    Mobile App Design
    Hybrid App Development
    Flutter
    Mobile App
    Android
    Mobile App Development
    API Integration
    iOS
    In-App Advertising
    Dart
    Push Notifications
    Android App Development
    Node.js
  • $45 hourly

    • 5.0/5
    • (18 jobs)
    🎖️ Top Rated Plus on Upwork (Top 3%) ✔️ 100% Job Success – Proven track record of client satisfaction ✔️ 20+ Successful Projects completed ✔️ 1,000+ Hours worked and still counting I’m an experienced Software Engineer with over 8 years of expertise, specializing in Apple platforms for the past 5 years, with a focus on iOS development. My tech stack enables me to deliver innovative, high-performing, scalable apps. With 3 years of graphic design experience, I ensure pixel-perfect execution, and my 5 years in management helps me lead teams and optimize workflows. I’ve consistently exceeded client expectations across various industries with outstanding performance and engagement. Tech Stack & Approach: 👾 iOS Development: Expert in Swift and SwiftUI for building native iOS applications optimized for the latest iOS updates. Proficient in modern design patterns such as MVVM, VIPER, TCA, and Clean Architecture, ensuring scalable, maintainable, and high-performance apps with clean code and a solid structure. 👾 watchOS, tvOS, macOS, iPadOS, visionOS: Skilled in developing for Apple’s broader ecosystem, creating seamless apps for watchOS, tvOS, macOS, iPadOS, and the latest visionOS. Focused on delivering apps that fully leverage the unique capabilities of each platform for an optimized user experience. Tools & Technologies: 🥷🏻 iOS Tech Stack: Swift, SwiftUI, UIKit, CoreData, Combine, AVFoundation, CoreLocation, MapKit, HealthKit, Animations, Bluetooth, NFC, CallKit, StoreKit, PushKit, Push Notifications 🥌 Design Tools: Figma, Adobe Creative Suite (for UI/UX collaboration) 📎 Backend: RESTful APIs, Firebase, GraphQL 📎 CI/CD: Fastlane, Jenkins, Git, GitHub 📎 Project Management: JIRA, Trello, Slack, Monday 📎 Testing & Automation: XCTest, Snapshot Testing I’m proficient in Agile/Scrum methodologies with a deep understanding of the full app development lifecycle—from concept to deployment and continuous improvement. I excel in troubleshooting, team management, and mentoring developers, fostering faster, more efficient workflows. My goal is to deliver high-quality products and solve complex technical challenges to drive business growth. 💬 Invite me for a free 30-minute consultation to discuss how I can help your project succeed.
    Featured Skill Firebase
    Performance Optimization
    Push Notifications
    RESTful API
    iOS SDK
    Functional Programming
    XCTest
    Figma
    iOS Development
    Core Data
    API Integration
    Adobe Creative Suite
    Swift
    Data Structures
    Git
  • $60 hourly

    • 5.0/5
    • (9 jobs)
    Fundamentals: Experienced Android Developer 20+ released projects 7+ years of Android development experience English: Fluent I've been developing high-quality mobile apps for more than 7 years now. I've been working on a broad variety of projects: mobile banking apps, mobile clients for enterprise systems, educational and entertaining apps, b2b and b2c projects. I've worked with applications requiring different technologies and skills. I especially want to note the experience of fixing errors made by previous developers.
    Featured Skill Firebase
    RESTful Architecture
    In-App Purchases
    Mobile App Development
    Android NDK
    Google Maps API
    Material Design
    Mobile UI Design
    Websockets
    Android SDK
    Android App Development
    GraphQL
    SQLite
    Java
    Kotlin
  • $75 hourly

    • 5.0/5
    • (18 jobs)
    Passionate about building intuitive, visually appealing, and high-performance iOS applications, I bring over 10+ years of experience in developing robust mobile solutions. I specialize in creating user-friendly apps with seamless functionality and cutting-edge design. My expertise includes: - Developing scalable iOS apps using Swift and SwiftUI - Designing clean and responsive user interfaces for exceptional user experiences - Integrating APIs, payment systems, and third-party libraries to enhance app functionality - Optimizing app performance and troubleshooting issues to ensure smooth operation - Following Agile development practices for efficient project management Highlights of my work: - Collaborated with cross-functional teams to deliver solutions that exceeded client expectations. - Proven ability to turn complex ideas into polished, professional products. If you're looking for a dedicated and detail-oriented iOS developer to bring your vision to life, let’s connect! I'm excited to help you create an app that stands out.
    Featured Skill Firebase
    Bluetooth
    Model View ViewModel
    JSON
    RxSwift
    Firebase Cloud Firestore
    Git
    iOS Development
    MVC Framework
    Apple Xcode
    Swift
    Agora.io
    Android App Development
    iOS SDK
  • $49 hourly

    • 5.0/5
    • (15 jobs)
    Hey there! I'm your go-to guy for all things software engineering, data analysis, and business analysis. Creating awesome apps for desktop, cloud, and mobile? That's my jam. Python and JavaScript? They're like second languages to me. I've got a knack for making complex stuff simple and efficient, especially since I head up automation in my day job. Oh, and did I mention I'm also an inventor with my own patent? Yeah, I love thinking outside the box and turning wild ideas into cool realities. When it comes to managing projects, I'm all about keeping things smooth and professional from start to finish. Communication? Super important to me. I'm all about clear, friendly chats with my clients to make sure we're always on the same page. Need a slick mobile app, a cloud-based solution, or just some sharp insights on your business processes? I'm here to make that happen. Let's chat and see how we can make your next project awesome!
    Featured Skill Firebase
    Web Hosting
    DNS
    Business Analysis
    Database Integration
    VPN
    Scripting
    Cloud Application
    PHP
    JavaScript
    Google Apps Script
    Data Analysis
    SQL
    Visual Basic for Applications
    Python
  • $70 hourly

    • 4.8/5
    • (32 jobs)
    "Mikhail is on point! He responds quickly, understands exactly what is required, asks all the right questions and does development rapidly. Couldn't rate him higher." Mark M. "Mikhail went above and beyond the call of duty to complete this project. His is very responsive and diligent. He gets the job done and he does it well. He has high standards, which are reflected in the high quality of work he produces." Marc P. "I really enjoyed working with Mikhail. As I am a really unexperienced programmer he was honest with me since the beginning of the project on how much time he will need etc. He really tried me to understand things and through that I learned a lot. He is very skilled and speaks English fluently. Overall I would rate my experience 10/10!" Lars S. ✓ Javascript, Vue (Vuex, Vuetify, Vuefire), NuxtJs, ✓ Python (Flask), RESTful API ✓ Bootstrap, HTML, CSS/SCSS/SASS/LESS ✓ Linux, Ubuntu, NGINX, uWSGI, Celery, Redis ✓ MongoDB, MySQL, SQLite ✓ Google Cloud: Firebase (authentication, database, storage, functions) ✓ AWS EC2/S3, Digital Ocean, Google Cloud, physical servers ✓ SpaCy, NLTK, Flashtext ✓ LaTeX, Sphinx, Tikz, PyPDF ✓ TDD, data scraping, parsing ✓ Payment integration (Stripe, PaypaI, Yandex.Money) ✓ Third-party API (such as Google services, Diffbot, vk.com, Facebook, Flickr) ✓ English Dictionaries API (Oxford, Cambridge, Merriam) ✓ Math education (statistic and machine learning) Looking forward to your job offers!
    Featured Skill Firebase
    Stripe
    LaTeX
    RESTful API
    CSS
    Git
    Nuxt.js
    GitLab
    HTML
    MongoDB
    Python
    Vue.js
    Bootstrap
    Flask
    JavaScript
  • $77 hourly

    • 5.0/5
    • (21 jobs)
    💡𝐋𝐞𝐭'𝐬 𝐓𝐮𝐫𝐧 𝐘𝐨𝐮𝐫 𝐈𝐝𝐞𝐚 𝐈𝐧𝐭𝐨 𝐑𝐞𝐚𝐥𝐢𝐭𝐲 𝐓𝐨𝐠𝐞𝐭𝐡𝐞𝐫. Аfter participating in 25+ projects I've learned ‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎that ‎for startups speed of development is a key for success. I focus on speed with quality in mind. I always provide MVP in 2 weeks, so you can touch it, share it with colleagues and first clients and then, when you ready - evolve it into quality product. All my code is always easy to modify to deliver changes for your business. You need somebody who can deliver value fast and cooperate with you long-term for your growing business? Click "Send offer" button and let's discuss your project needs. Tech stack: ✅Clouds: AWS, Google Cloud, Firebase, Heroku ✅Architectures: Serverless, Monolith ✅Git (GitHub, BitBucket, GitLab) ✅Languages: TypeScript, JavaScript ✅Frameworks: Angular, Node.js, Express.js ✅Databases: PostreSQL, MongoDB, MySQL, Firestore ✅APIs: Google, oAuth, Google Maps, Stripe, PayPal and more ✅VCS: Git (GitHub, BitBucket, GitLab) ✅CI: Codeship.io, BitBucket CI, GitLab CI ✅OS: Linux, MacOS, Windows
    Featured Skill Firebase
    Firebase Cloud Firestore
    PostgreSQL
    SQL
    AngularJS
    React Native
    JavaScript
    ExpressJS
    MongoDB
    TypeScript
    React
    Node.js
    Angular
  • $45 hourly

    • 5.0/5
    • (5 jobs)
    I will help you launch your project quickly. I love programming and technology. My favorite book is "Code Complete". I graduated from Moscow Aviation Institute in 2014 with an Engineer's degree. From 2012 to 2018, I worked in the Nekki, which developed great mobile games. Then I moved to Web technologies, and I have worked in this area since then.
    Featured Skill Firebase
    Game Development
    Websockets
    Mapbox
    Jest
    Front-End Development
    Web Application
    RESTful Architecture
    HTML
    TypeScript
    Vuetify
    Vue.js
    CSS
    Node.js
    JavaScript
  • $40 hourly

    • 4.9/5
    • (39 jobs)
    Are you seeking an experienced and passionate Unity game developer to bring your gaming ideas to life? Look no further! I am a dedicated and skilled freelancer with a deep love for game development and years of experience in creating captivating games using Unity. My journey in the world of game development has allowed me to hone my expertise in Unity, the industry-leading game engine. With a keen eye for detail and a commitment to excellence, I take immense pride in crafting immersive and interactive gaming experiences that leave players enthralled. As a seasoned freelancer, I understand the importance of effective communication and collaboration. My approach is to listen to your vision and requirements attentively, ensuring that your ideas are translated seamlessly into the game. Whether you need a 2D platformer, a 3D action-adventure, or anything in between, I am well-versed in various game genres and mechanics. My strong command of C# programming, combined with my ability to optimize game performance and implement cutting-edge features, guarantees a polished and enjoyable gaming experience across different platforms. From the initial concept to the final launch, I am committed to delivering projects on time and within budget. I thrive on challenges and embrace every opportunity to push the boundaries of game development, delivering results that exceed expectations. Let's embark on an exciting journey together, and turn your gaming dreams into a reality. I'm eager to collaborate with you and create a Unity game that stands out in the ever-evolving world of gaming. Contact me today, and let's build something extraordinary! Remember: In this dynamic world of game development, innovation and creativity reign supreme. My portfolio showcases my passion for creating unique games, and I'm ready to take on new challenges and deliver outstanding results for you.
    Featured Skill Firebase
    Game Design
    Video Editing
    Game Development
    Sony Vegas
    Database Development
    Review or Feedback Collection
    In-App Purchases
    In-App Advertising
    Unity
    Hybrid App Development
    C#
    iOS
  • $40 hourly

    • 5.0/5
    • (46 jobs)
    ✅ TOP RATED Full-stack developer on Upwork with over 5 years of experience in web development with a passion for modern and evolving software development technologies Browser Automation: ✅ Puppeteer ✅ Playwright ✅ Cheerio & Request ✅ Apify SDK ✅ Tampermonkey (JQUERY) Web Development: ✅ Javascript/ Typescript ✅ ReactJS / Redux ✅ NodeJs / ExpressJS ✅ MongoDB / Mongoose ✅ MSSQL, MYSQL ✅ REST API ✅ Websocket / Socket.IO ✅ UI/UX / responsive web Blockchain & Web3: ✅ Solidity ✅ EthersJS, Web3JS ✅ Cross-Chain DAPP development ✅ NFT, Smart Contracts, DEFI, DAPP, Arbitrage bots Ultimate GOAL is to deliver solutions that satisfy clients and help to create long lasting professional relationships. Focused mainly on process-driven, high quality, cost-effective and timely delivery solutions. Looking for part-time or long term full-time contract work.
    Featured Skill Firebase
    Bot Development
    API
    Data Scraping
    Automation
    Web Crawling
    ExpressJS
    MongoDB
    API Integration
    React
    Node.js
  • $40 hourly

    • 4.7/5
    • (19 jobs)
    🚀 TOP RATED (JSS 100%) 🚀 Earned over $30,000 on the platform 🚀 Software Engineer with a background in Mobile, Web, Desktop, AI, and Embedded ⭐⭐⭐ Software Engineer with experience in software development and support for several platforms, problem fixing, and testing. I have key competencies in such areas as DEVOPS, MOBILE AND WEB APPLICATIONS, FULL STACK DEVELOPMENT, VIRTUALISATION, DATABASES, MACHINE, AND DEEP LEARNING. I’ll produce clean and professional code with full coverage by application tests. I’ll add all the new features and services to help you grow your business. I guarantee the quality and support of your applications. ✍️ I have a Bachelor’s degree in Artificial Intelligence with the practical use of Machine Learning. Applying modern techniques and tools for product software development has always been my passion. 👍🏼 "Vlad did a great job in his position and was an asset to our organization during his tenure with Rocket software. He would be an asset to any employer, and I highly recommend him for any software development position he wants to pursue." Pavel Smelianski, Senior Development Manager, Rocket Software 🏆 I am a reliable autonomous freelancer and a great team player. I am a self-motivated professional who strives to do the job efficiently and on time. It is essential for me to build long-term relationships with my clients. I am always in touch and instantly respond to messages. I will be glad to provide the following services (including, but not limited to): ✔️ Working on customer needs and converting them into technical requirements ✔️ Support of the entire application lifecycle (concept, design, test, release, and support) ✔️ Producing fully functional mobile applications with clean code ✔️ Designing interfaces for better user experience ✔️ Writing unit and UI tests to identify malfunctions ✔️ Troubleshooting and debugging to optimize performance ✔️ Ensuring the correct linking of the backend and frontend ✔️ Implementation of new and further existing apps development ✔️ Ensuring new and legacy applications meet quality standards ✔️ Keeping up to date with the terminology, concepts, and best practices for coding mobile apps ✔️ Cooperation with function designers, UX /UI designers, and programmers ✔️ Consulting the customer's development team Technologies I use: ✅ Languages: Dart, Kotlin, Swift, Objective-C, Java, C++, C, Go, Javascript, Python ✅ Frameworks: Flutter, Node.js, Qt ✅ Design: Figma, Photoshop, InDesign ✅ Cloud services: Firebase, AWS, Google Cloud Platform ✅ Persisting Data: Realm Database, Cloud Firestore, SQLite, MySQL ✅ API: GraphQL, REST ✅ CMS: Strapi ✅ Analytic: Google Analytics 📞 Contact me today and I will be glad to communicate with you and discuss the requirements of your project. Best regards, Ulad
    Featured Skill Firebase
    Flutter
    Swift
    Mobile App Design
    Software Design
    Mobile App Development
    Android
    iOS
    Software Development
    Mobile App
    Dart
    Java
  • $50 hourly

    • 5.0/5
    • (12 jobs)
    ⭐️ 100% Job Success ⬆️ Top Rated Plus Developer ⏰ 3,833 Total Hours 💰 100k+Total Earnings ❤️Long Term Relationship My expertise: ☑️ Solid experience in back-end developing with JavaScript (NodeJS, GraphQL) and PHP (Laravel/Yii2). ☑️ Experience in front-end development with ReactJS, AngularJS. ☑️ Advanced knowledge of technologies using HTML and CSS. Feel free to contact me. I look forward to hearing from you!!
    Featured Skill Firebase
    Babylon.js
    Mobile App Development
    Ecommerce Website Development
    NestJS
    Three.js
    AngularJS
    Redis
    SQL
    Node.js
    React
    Docker
    D3.js
  • $55 hourly

    • 4.5/5
    • (11 jobs)
    3 years experience in cross platform mobile development with Flutter, Dart. 4 years experience in development with Kotlin, Java, Spring Boot. 🥇 My app Fitness Lab was featured by Apple in the App Store and included in best fitness apps collection. Apps that I made in solo or worked on: Fitness Lab: Gym log and timer Fitness Lab: 5 min workout Postraves: Electronic music events (upcoming) Postraves: Events management (web, upcoming) One2One.run: App for runners DRSTech: App for automotive services Skills in Mobile development: Flutter, Dart, State management, Provider, BLoC, Firebase, AWS Amplify, Cognito, S3. Other: Kotlin, PostgreSQL, AWS, SOLID, Design patterns, testing, RESTful API, Git.
    Featured Skill Firebase
    Android App Development
    Flutter
    Chat & Messaging Software
    Android
    NoSQL Database
    Mobile App Development
    Mobile App
    iOS
    Amazon Cognito
    Amazon S3
    AWS Application
    Amazon Web Services
    AWS Amplify
    Dart
  • $28 hourly

    • 4.8/5
    • (12 jobs)
    Hi there, I'm Lasha Onashvil, a Software Automation Engineer specializing in JavaScript. Whether it's automating processes, integrating APIs, or developing intelligent Chatbots, I bring a versatile skill set to the table. I pride myself on seamlessly combining traditional coding with harnessing the power of no-code platforms for efficient, client-tailored solutions. Let's discuss how I can add value to your projects. What I Offer: JavaScript Specialization: My expertise lies in harnessing the power of JavaScript to create robust and dynamic automation solutions. Automation Enthusiast: I thrive on automating tasks to boost productivity, whether it involves coding intricacies or utilizing no-code platforms. No-Code Efficiency: Explore the potential of no-code solutions in optimizing your processes, enhancing efficiency without the need for extensive coding. Client-Centric Approach: I'm dedicated to understanding and meeting your unique needs, ensuring that the solutions I provide align seamlessly with your goals. Explore the efficiency and innovation I bring to projects. Let's collaborate to elevate your automation game. Feel free to connect and discuss your project in detail. Best Regards, Lasha Onashvil
    Featured Skill Firebase
    Data Scraping
    Bash Programming
    Python
    Bubble.io
    Content Marketing
    Make.com
    Airtable
    Zapier
    Automation
    Google Sheets
    ManyChat
    JavaScript
    Chatbot Development
    API Development
  • $15 hourly

    • 5.0/5
    • (1 job)
    Software engineer, with 6+ years of experience, developing high-performance web and mobile applications. Technologies Proficient with Frontend: React (Javascript/Typescript), Next Js (Javascript/Typescript) ✅ Mobile: React Native (Javascript/Typescript) ✅ Backend: NodeJs (ExpressJs) ✅ Databases: MongoDB, Firestore, Supabase ✅ Tools & Platforms: Firebase, Google Cloud, DigitalOcean, Kubernetes, Redis ✅ Let’s Build Something Amazing Whether it’s a new app, a system upgrade, or innovative solutions to challenging problems, I’m ready to help. Contact me to bring your ideas to life!
    Featured Skill Firebase
    Firebase Cloud Firestore
    MongoDB
    Node.js
    React Native
    Next.js
    Redux
    Tailwind CSS
    Ant
    TypeScript
    Material UI
    React
    CSS
    HTML
    JavaScript
  • $20 hourly

    • 4.9/5
    • (14 jobs)
    Web Developer with 3+ years of experience in the web development industry. I have worked on 40+ medium-sized projects using JS, jQuery, React, Chakra UI, Vue.js, Bootstrap, Sass, Less. I have good communication skills, always work hard and arrange all kinds of environments. Most importantly, I write clean code and pay a lot of attention to details.
    Featured Skill Firebase
    API
    Email Design
    Web Development
    React
    Template Markup
    Web Application
    Vue.js
    Bootstrap
    SCSS
    jQuery
    Sass
    Tailwind CSS
    HTML5
    CSS 3
    JavaScript
  • $25 hourly

    • 5.0/5
    • (7 jobs)
    Experienced in building websites and mobile application from scratch as well as refactoring and improving already written code. My experience encompasses two Hamburg based Startups where I worked as a React/Typescript developer and Georgian based startup for which I built a React Native Mobile Application.
    Featured Skill Firebase
    MySQL
    TypeScript
    C++
    C
    ExpressJS
    Redux
    Web Development
    React Native
    Mongoose
    HTML
    CSS 3
    HTML5
    MongoDB
    React
    Node.js
  • $25 hourly

    • 5.0/5
    • (3 jobs)
    Crafting Mobile Apps. Premium Quality, Swift Delivery, Exceptional Value! I develop these kinds of apps 🛒 shopping 📸 multimedia 💞 dating 👩‍⚕️health care 📅 booking 🏦 banking ₿ crypto Do you have an amazing app idea that needs to be brought to life? Look no further, because you've found the right person for the job! My values 🗣️ Efficient communication 👨‍💻 Professional Code Quality 🎁 Fast Delivery 🫡 Honesty and Transparency Here's what I bring to the table 📱Flutter and Dart I can swiftly build cross-platform apps with native-like performance. 🤖 Android SDK and Swift For implementing specific native features not available in Flutter. 📍 Maps Google, Yandex, OpenStreetMap 💳 Payment systems Apple Pay, Google Pay, Stripe 📊 Analytics Firebase, Crashlytics 🎨 Nice UI and Animations Adding that extra flair to make your app stand out 🛍️ Publication I will expertly launch your app on the stores Let's collaborate on challenging and fulfilling projects, laying the groundwork for long-term success and innovation! 🚀
    Featured Skill Firebase
    Android App Development
    Dart
    SQL
    Figma
    Stripe
    UI/UX Prototyping
    Google Maps API
    Analytics
    Push Notifications
    Mobile App Development
    Swift
    Kotlin
    Flutter
  • $37 hourly

    • 0.0/5
    • (0 jobs)
    ✅ As a Senior iOS/Android/Flutter Developer with a decade of experience, I specialize in creating high-quality mobile applications for iOS, Android, and desktop platforms. Whether you need a new app developed from scratch or maintenance and upgrades for an existing project, I am well-equipped to deliver exceptional results. Here’s why I am the ideal choice for your project: 🌟 Timely Delivery: With 10 years in mobile development, I have honed a proven system for identifying and resolving issues early, ensuring your project is completed on schedule. 🌟 Personalized Focus: As the sole developer on your project, I offer a dedicated and customized approach, ensuring your specific needs are met. 🌟 Responsive Communication: I am available anytime, with a commitment to respond within 60 minutes. 🌟 Cutting-Edge Solutions: Your project will utilize the latest technologies and adhere to best development practices, ensuring it is maintainable and adaptable for future enhancements. My track record of successful project completion underscores my commitment to delivering top-tier solutions. 🌟 Comprehensive Support: From discovery through development to release and maintenance, I provide full-cycle support. You will receive everything necessary to transform your concept into a functional and market-ready application. 🌟API Development: As an expert in API Development and Software Solutions, I craft robust, scalable APIs and custom software tailored to your unique business needs. ⭐My skills encompass⭐ ✅ Software Development: Dedicated to building custom mobile and desktop software that aligns perfectly with your business goals and processes. ✅API Development: Proficient in RESTful APIs, web services, HTTP methods, JSON/XML, API security (OAuth), and comprehensive API documentation. I am skilled in using Postman, Swagger, and API Gateway. ✅ Web App Development: Focused on designing and developing web applications that enhance user experience and interaction. Please review the testimonials from my clients and reach out to discuss your project further. I offer a development consultation where I will assess your project and create a development plan to illustrate my understanding of your objectives. Thank you for considering my services. I look forward to the opportunity to help you achieve your goals.
    Featured Skill Firebase
    SwiftUI
    Google APIs
    UX & UI
    Full-Stack Development
    RESTful API
    Map Integration
    Flutter
    Dart
    Kotlin
    Swift
    Desktop Application
    Android App Development
    iOS Development
    Mobile App Development
  • $25 hourly

    • 5.0/5
    • (6 jobs)
    Greetings! 👋 I'm Artsiom, an iOS developer on a mission to transform ideas into vibrant, user-friendly apps. 🌟 With 5 years dedicated to the art of app creation, I thrive on delivering positive digital experiences that leave a lasting impression. 💡✨ My passion lies in turning ideas into sleek, user-friendly apps, and I have a genuine passion for creating seamless digital experiences. *Why Partner with Me?* • Optimizing Experiences: Every line of code is crafted with a focus on enhancing the user journey. 💻✨ • Timely Excellence: Your project, delivered promptly and designed to exceed expectations. ⏱️ • Tech Harmony: Fluent in Swift/UIKit and Swift/Combine, I bring a unique perspective to keep your app ahead in the tech game. 📱🎨 *Skills Snapshot* • Swift • UIKit • SwiftUI • Combine • RxSwift • CoreData • UICollectionView custom layouts • RestFull APIs Projects I've Worked On: • Health and Fitness: Developed apps to promote healthy living, integrating features for tracking fitness goals and providing personalized health insights. • Restaurant Booking Services: Created solutions for seamless restaurant reservations, enhancing user experience in the food and hospitality industry. • Utilities: Engineered utility apps for enhanced productivity, offering innovative solutions to everyday challenges. • Video Streaming: Contributed to the world of entertainment by developing video streaming apps, ensuring a smooth and enjoyable content consumption experience. • Focus Apps: Designed applications to boost productivity and concentration, aiding users in maintaining focus and achieving their goals. Ready to add your project to the list? Let's chat about how we can bring your app vision to life! 🚀💬
    Featured Skill Firebase
    Google Ads
    Apple HealthKit
    Apple TV Application
    Apple Watch Application
    Reactive Programming
    RESTful API
    Git
    User Experience
    SwiftUI
    iOS
    Core Data
    Objective-C
    UIKit
    Swift
  • $20 hourly

    • 5.0/5
    • (9 jobs)
    I develop native apps for android devices using the latest tools and approaches. I've developed a variety of apps and have experience posting apps on Google Play - some of my apps are there. My core skills: ✔ Knowledge of Kotlin, Android SDK, understanding of Clean Architecture principles, development according to TDD; ✔ Creating applications both on Jetpack Compose and with XML-based layout; ✔ Working with SQLite databases (ROOM), multithreading (Kotlin coroutines), and client-server interaction via REST API (Retrofit, Gson/Moshi, OkHttp); ✔ Dependency Injection – Hilt, Koin, Dagger2; ✔ Testing: JUnit, Espresso, MockK; ✔ Working with image libraries: Coil, Glide; ✔ Working with version control systems; ✔ Multiplatform development - Kotlin Multiplatform, Compose Web.
    Featured Skill Firebase
    OkHttp
    Coroutine
    RESTful API
    Room
    Retrofit
    SQLite
    Android App Development
    Kotlin
    Android SDK
  • $15 hourly

    • 5.0/5
    • (2 jobs)
    React Native Developer | 6+ Years of Experience in Cross-Platform Mobile Apps I have successfully delivered numerous projects throughout my career, including e-commerce, fintech, social media, and custom business solutions. My expertise lies in building smooth, user-friendly apps that enhance user experience while ensuring optimal performance and security. 🚀 Core Skills & Technologies: React Native: Building intuitive, cross-platform mobile apps for iOS and Android. JavaScript, TypeScript, Redux: Leveraging modern JavaScript frameworks for seamless app development. Backend Integration: Node.js, Firebase, and RESTful API for scalable backend solutions. Mobile UI/UX Design: Focusing on responsive and engaging user interfaces. API Integration: Implementing third-party services such as Google Maps, Stripe, and social media logins. 🔧 Specializations: Cross-Platform Mobile App Development Performance Optimization & Bug Fixes In-App Purchases & Payment Gateway Integration User Authentication & Profile Creation Location-Based Services & Push Notifications 💡 Why Work With Me? I am dedicated to delivering high-quality, maintainable apps that meet client needs. Strong communication skills, ensuring transparency and collaboration throughout the project. Proven track record of meeting deadlines while maintaining top-notch code quality. Available for long-term projects and daily updates on progress. Technical Proficiencies: React Native, JavaScript, TypeScript, Cross-Platform Development, iOS, Android, Mobile App Development, API Integration, Node.js, Firebase, Stripe Integration, Google Maps API, UI/UX Design, Redux, Social Media Integration, Push Notifications, Performance Optimization, E-commerce App Development, Fintech App Development. Let’s collaborate to create innovative mobile solutions that will elevate your business. Contact me today to discuss your project!
    Featured Skill Firebase
    Third-Party Integration
    Push Notifications
    Node.js
    UX & UI
    Redux
    Responsive Design
    React
    Web Development
    Back-End Development
    API Development
    React Native
    JavaScript
    Mobile App Development
    Apple Xcode
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