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Hire the best Firebase Developers in Kharkiv, UA

Check out Firebase Developers in Kharkiv, UA with the skills you need for your next job.
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Rating is 4.8 out of 5.
4.8/5
based on 655 client reviews
  • $50 hourly
    • 5.0/5
    • (74 jobs)
    Are you looking for a results-driven marketing expert who doesn’t just run ads, but crafts performance strategies that drive measurable growth? I specialize in media buying and growth strategy across Google Ads, Meta (Facebook/Instagram), Apple Search Ads—and I back every decision with data from tools like Amplitude, Firebase, GTM, GA4, and Looker Studio. 🥇 With over 12 years of experience managing high-performing campaigns and growth funnels, I help businesses drive real revenue—not just impressions. 💼 My expertise includes: 🚀 Media Buying & Paid Growth: ✓ Google Ads (Search, Display, Shopping, Performance Max) ✓ Meta Ads (Facebook/Instagram full-funnel strategies) ✓ Apple Search Ads & Google App Promotion (targeted app campaigns) ✓ Other Ads platforms (Microsoft (Bing), TikTok, Amazon, LinkedIn, Twitter (X)) ✓ Scalable strategies for e-commerce & SaaS acquisition ✓ Advanced audience targeting, creative testing & budget scaling ✓ Display Advertising (Outbrain, Taboola) ✓ And many more 📊 Data & Analytics Mastery: ✓ GA4 & Google Tag Manager: Robust event tracking, ecommerce setup, conversion funnels ✓ Firebase & Amplitude: In-app behavior tracking, retention & cohort analysis (ideal for SaaS and mobile) ✓ Looker Studio: Custom dashboards that connect ad performance to business outcomes 🤝 Why clients choose me: ✓ Proven success across DTC and SaaS verticals ✓ Obsessed with ROAS, CAC, LTV, and retention metrics ✓ Strong mix of creative thinking + technical execution ✓ Strategic partner mindset—not just a freelancer Whether you're looking to lower acquisition costs, scale ad performance, or build a marketing engine that actually works—I bring the tools, tactics, and experience to make it happen. Let’s grow your business with smarter media buying and data-powered decisions.
    Featured Skill Firebase
    Google Analytics 4
    Supermetrics
    Looker Studio
    Google Tag Manager
    Amplitude
    Media Buying
    Google Shopping
    Digital Marketing
    Search Engine Marketing
    Google Ads
    Facebook Ads Manager
    Social Media Marketing
    Facebook Advertising
    Social Media Advertising
  • $37 hourly
    • 4.8/5
    • (153 jobs)
    With over 12 years in the software development industry and more than 9 years of successful freelancing on Upwork, I bring a wealth of experience and expertise to every project. I specialize in mobile and web development, delivering high-quality, scalable solutions tailored to meet your specific needs. My extensive background includes working with cutting-edge technologies like Flutter, Riverpod and GetX, ensuring that I can handle even the most complex challenges. Whether you're looking to develop a robust mobile app, an interactive web application, or need expert guidance on your project, I'm here to help you achieve your goals with precision and efficiency. Let's bring your vision to life!
    Featured Skill Firebase
    ARCore
    Stripe
    FlutterFlow
    Augmented Reality
    Firebase Cloud Firestore
    Arch Linux
    Linux
    Apache Cordova
    Laravel
    Web Design
    Mobile App Design
    Flutter
    React
    CSS 3
  • $44 hourly
    • 5.0/5
    • (22 jobs)
    What is this secret ingredient to make the job done? For me it is an Attitude. And by Attitude I mean 4 key principles I follow with my team: 🧑‍💻 Technology. We believe that technology is a means to achieve business goals rather than an end in itself. With a strong emphasis on purposeful development, we take complete responsibility for the technological aspect of every project. 🎯 Shared goals. What can compare to watching your baby grow and succeed? We prefer working with companies and startups in a long term, driving their growth with solutions we deliver. 🤗 Care. By understanding your goals in business, we are involved in decision making process on the tech side, and constantly discuss and evaluate solutions we are building to meet these goals. That what partners do. 🌊 Transparency: Sometimes problems happen. Trust me, telling your client about a problem is not the most pleasant thing. We believe that being transparent in these situations allows to make timely decisions, and makes a solid foundation for partnership. Most of my projects are in following domains: Utilities Healthcare and HIPAA projects SaaS platforms Asset management software Social and Media My expertise: Mobile app development ► Cross-platform mobile apps ► Native mobile apps for iOS and Android ► Apps for IoT with BLE (Bluetooth Low Energy) ► Apps for Crypto / Blockchain and NFT niche Tech stack: React Native, Swift, Kotlin and Java, SwiftUI, BLE (Bluetooth Low Energy). Web development ► SaaS platforms ► Web applications and tools ► Admin panel Tech stack: React.js, Django Templates, Flask, Typescript, Javascript, Python Tools: Figma, Sketch, Adobe Photoshop
    Featured Skill Firebase
    Android
    Django
    iOS
    JavaScript
    Smartphone
    Swift
    React
    Database
    Web Development
    React Native
    Mobile App Design
    Android App Development
    iOS Development
    Mobile App Development
  • $40 hourly
    • 5.0/5
    • (12 jobs)
    Hello There! I am senior software engineer with 7 years of experience in iOS/Android app development. I can provide solution for cross-platform app development with Xamarin and React Native. My skills: ✔ React Native (JavaScript/ES6/7, Redux, Redux-Saga, Redux-Thunk) ✔ Xamarin (C#, Xamarin.Forms, Xamarin.iOS, Xamarin.Android, Xaml, MvvmCross, FreshMvvm, Prism) ✔ Ionic ✔ iOS (Swift, Objective-C) ✔ Android (Java) I provide: ✔ Excellent software architecture skills, with the ability to develop well-structure code. ✔ Experience integrating with third party libraries and APIs. ✔ Good comprehension of UI/UX, including Android Material and iOS Design guidelines. ✔ Solid understanding of the mobile development life cycle. ✔ Proven track record of publishing apps to App Stores. ✔ Action-oriented, with strong initiative and the ability to solve problems creatively When dealing with customers I try to clarify necessary details concerning the project, estimated time for implementation.
    Featured Skill Firebase
    API Development
    Next.js
    Cross Browser & Device Compatibility
    Front-End Development
    Android App Development
    Mobile App Development
    iOS Development
    Node.js
    JavaScript
    Ionic Framework
    React Native
    Xamarin
    C#
    Hybrid App Development
  • $50 hourly
    • 0.0/5
    • (1 job)
    My Description:
 
Hello everyone, I`am purposeful and determined iOS developer with an interest in skillfully crafting creative mobile applications and utilities. I am constantly striving to learn new technologies and look to ways to better myself in this rapidly changing industry. I understand the importance of creating highly readable, reusable and easily maintainable source code. My strengths and skills: - 5 years of successful international IOS Development - Personnel management skills - Quick mastering of new skills - The ability to find solutions to problems where most do not find. - Application of the following frameworks: Alamofire, Material, Firebase, ObjectMapper, SnapKit, Crashlytics, XMLMapper, IDZSwiftCommonCrypto, ArcGis, AppAuth, BearSDK, SwiftUI. Participated in a number of projects through: - Saudi Post - SpeakingHub - ProSapient - Locator - Movement Vault 
My hobbies: - Ches - Programing MC (AVR) - Theatre - Climbing
    Featured Skill Firebase
    Zeplin
    JSON
    Jira
    ArcGIS
    API
    Bitbucket
    Encryption
    Asana
    Git
    Marvel App
    Alamofire
    Swift
  • $25 hourly
    • 5.0/5
    • (10 jobs)
    I am a React Front-end developer with 2 years of experience in web development. Why should you choose me? My main development skills are: 💎 React; 💎 Redux Toolkit; 💎 Next JS; 💎 SCSS, CSS Module, Tailwind, Bootstrap 💎 Material-UI, Ant Design 💎TypeScript; 💎GraphQL, Apollo; 💎 HTML5; 💎 CSS3 with animation; 💎 JavaScript and JQuery; 💎 A large number of modules in React and JS; 💎 Responsive site development; 💎 Gulp and many plugins for him I have experience with various online stores (I was their founder and owner) for more than 10 years. I made the terms of reference for developers. Personally designed websites with products with tags for SEO promotion. After 24.02.2022, when Russia attacked my country, my business was destroyed and I had to start working as a WEB-developer on Upwork. I am well versed in technologies such as React, ReduxRTK, HTML, CSS and JavaScript.
    Featured Skill Firebase
    React
    TypeScript
    Redux Thunk
    Redux
    Next.js
    Tailwind CSS
    Figma
    PSD to HTML
    SCSS
    CSS 3
    gulp
    JavaScript
    HTML
  • $24 hourly
    • 5.0/5
    • (6 jobs)
    Hey 👋 Glad you're here! I am a developer who can take care of the server logic of your project. My expertise lies in designing and implementing robust server-side solutions with Node.js, Nest.js, JavaScript, TypeScript that power modern web applications. Whether you’re looking for a developer to build your backend architecture from the ground up, optimize an existing system, or troubleshoot complex issues, I’m here to help. 🔥 𝐖𝐡𝐲 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞? I specialize in back-end development using cutting-edge technologies, ensuring that your application’s core is both powerful and reliable. My focus is on delivering clean, optimized, and maintainable code that supports seamless integration and high performance. I’ve worked across industries, building robust e-commerce platforms, secure healthcare apps, reliable fintech systems, scalable e-learning tools, and tailored business solutions for B2B and B2C. 📋 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 & 𝐓𝐨𝐨𝐥𝐬 𝐈 𝐔𝐬𝐞: 🔺 JavaScript and TypeScript 🔺 Node.js Express.js 🔺 Nest.js 🔺 Firebase 🔺 MongoDB PostgreSQL MySQL Pinecone DB Neo4j 🔺 GraphQL ➡️ Sequelize TypeORM ➡️ Twilio SendGrid ➡️ Stripe ➡️ RabbitMQ ➡️ socket.io Websockets AUTH0 JWT ➡️ CI/CD GitHub Actions GitLab Bitbucket ➡️ Mocha Jest ➡️ Docker ➡️ AWS EC2 Lambda API Gateway S3 RDS Cognito Elastic Beanstalk ➡️ Algolia ElasticSearch 💻 𝐖𝐡𝐚𝐭 𝐈 𝐃𝐨: 𝐶𝑢𝑠𝑡𝑜𝑚 𝐵𝑎𝑐𝑘𝑒𝑛𝑑𝑠 - build strong, scalable server-side solutions that fit your needs. 𝑂𝑝𝑡𝑖𝑚𝑖𝑧𝑒 𝑆𝑦𝑠𝑡𝑒𝑚𝑠 - improve code for speed, scalability, and simplicity. 𝐴𝑃𝐼𝑠 𝑀𝑎𝑑𝑒 𝐸𝑎𝑠𝑦 - design secure APIs to connect your app with other services. 𝑆𝑚𝑎𝑟𝑡 𝐷𝑎𝑡𝑎𝑏𝑎𝑠𝑒𝑠 - create and tune data storage with relational or NoSQL solutions. 𝐶𝑙𝑜𝑢𝑑 𝑆𝑒𝑡𝑢𝑝 - deploy reliable, high-performing cloud systems. 𝐵𝑜𝑜𝑠𝑡 𝑆𝑒𝑐𝑢𝑟𝑖𝑡𝑦 - protect your data with top-notch security practices. 𝑂𝑛𝑔𝑜𝑖𝑛𝑔 𝑆𝑢𝑝𝑝𝑜𝑟𝑡 - keep your backend running smoothly with regular updates. 📮 Click the button to connect and share your needs with me!
    Featured Skill Firebase
    Strapi
    Stripe
    Back-End Development
    Docker
    GraphQL
    MongoDB
    PostgreSQL
    SQL
    AWS Amplify
    JavaScript
    TypeScript
    NestJS
    ExpressJS
    Node.js
  • $29 hourly
    • 5.0/5
    • (63 jobs)
    For twelve years, I work as an iOS Developer. During this time, I have completed many projects. More than half of my projects are client applications for servers. I understand how such applications are arranged. How to receive the data from a service using a REST API. I know how to parse a service response and display it in an app and create offline mode. I have experience with video and audio. I can combine video files, put sound on them, change this sound, add text or image to the resulting video. I worked with video and audio players and recorders. I worked with Maps. I can display places on this map, present custom callouts on it, and show routes from a user location to these places. I also can work with the CoreData framework. I know how to get data from a database on a thread and display it to a user without an interface freezing. In 2017 I decided to create some apps on my own. My friend is a radiologist, and he shared with me his idea about a medicine app. We have created this app and published it to AppStore. You can find it if you search for RadAnatomy and RadAnatomyLite. 50% of the proceeds I transfer to my friend. During the work on this app I put myself in the place of customers and gain the priceless experience how an idea is embodied to the app. I can use Photoshop and Sketch, and you do not need to slice images. Just provide me a file with a design. The rest I will do by myself. I pay attention to pixel-perfect and custom fonts because I respect designer work.
    Featured Skill Firebase
    macOS
    Mac OS App Development
    Apple Xcode
    RxSwift
    iOS Development
    iOS
    Objective-C
    Swift
  • $35 hourly
    • 4.4/5
    • (16 jobs)
    Bring value to your business—that’s my top priority. Every project I work on is built with a single objective: to deliver results that truly matter to my clients and partners. As a skilled and dedicated developer, I focus on providing optimal solutions tailored to your specific business needs, ensuring not just satisfaction but success. My goal is to deliver high-quality, cross-platform mobile software quickly and efficiently without compromising on excellence. Do you need a cross-platform or Hybrid or Multi patform application? I am here to help your business grow and succeed. With over 6 years of professional experience with Mobile App Development, Firebase, Dart , API, User Authentication, React Native, User Profile Creation, React, Web Development , In-App Purchases, PHP, Swift, AI Mobile App Development, Hybrid App Development, Location-Based Service, I have honed my skills in delivering top-tier mobile applications that work seamlessly across devices. My work combines technical expertise, attention to detail, and a deep understanding of my clients' industries to craft solutions that make a difference. I specialize in developing cross-platform applications using the latest technologies and frameworks. Whether you're looking to launch an MVP or scale your existing app, I can help you achieve your goals efficiently. Tech Stack: 🔸 Flutter – Ideal for creating smooth, high-performance apps for mobile, web, and tablets. 🔸 Dart – The foundation of robust and scalable applications. Core Related Skills: 🔹 Flutter Bloc – For state management and building dynamic, responsive applications. 🔹 REST API – Ensuring seamless integration with backend systems for a robust app experience. 🔹 Clean Architecture – Developing maintainable and scalable codebases that stand the test of time. 🔹 Firebase – Utilizing powerful backend services for authentication, database management, and notifications. 🔹 Maps Integration – Adding geolocation features for navigation or location-based services. 🔹 Payment Gateways – Enabling secure and reliable in-app transactions. 🔹 GraphQL – For efficient querying and managing application data. Industries I’ve Worked With Over the years, I’ve had the privilege of working on diverse projects across several industries, which has broadened my understanding of various business needs: 💠 Healthcare: Building user-friendly apps for patient management, telemedicine, and fitness tracking. 💠 Telecom: Creating tools that improve communication and streamline operations. 💠 Social Media: Developing engaging platforms that foster connections and community building. 💠 Traveling 💠 IoT and Bluetooth Devices management My aproaches are: Client-Centric: I believe in clear communication, transparency, and a deep understanding of your goals. Your success is my success. Efficient Delivery: I prioritize delivering results on time, so your project progresses smoothly without unnecessary delays. Long-Term Collaboration: I value strong partnerships and long-term cooperation, allowing me to focus deeply on your needs and adapt as your business grows. Continuous Learning: Technology evolves rapidly, and so do I. I stay up-to-date with the latest trends to offer you the best solutions. Let’s Build Something Great Together! If you’re looking for a developer who can turn your ideas into reality, I’m ready to bring my skills and dedication to your project. Whether you need a high-performing mobile app, seamless integrations, or an app that scales with your business, I’m here to make it happen. 🌐 Tell me more about your project! I’m excited to learn about your vision and explore how I can contribute to your success. Let’s connect and create a solution that not only meets but exceeds your expectations. Together, we’ll transform your ideas into a valuable product that drives real results. Reach out to me today—I’m ready to get started!
    Featured Skill Firebase
    Web Development
    Artificial Intelligence
    FlutterFlow
    Location-Based Service
    AI Mobile App Development
    Flutter
    Payment Processing
    Geolocation
    Mobile App Development
    QR & Barcode Scanner
    Clean Architecture
    RESTful API
    GraphQL
    Dart
  • $40 hourly
    • 5.0/5
    • (4 jobs)
    Every your task for me like a challenge to found the best, the fastest, the cheapest solution. I can solve your task, or give you some advice about implementation or make an estimate that includes a lot of risks. After 5 years of commercial experience with JS, I realized that the most important thing for a client is a high-quality product and excellent work with deadlines. Why choose me? • Deep expertise in Server and Mobile development • Relevant experience • Pre-made solutions to increase delivery velocity I experienced in next technologies : • Node.js • Nest.js • Express.js • TypeScript • MongoDB • PostgreSQL • React Native • React.js • Redux-Saga • Firebase • AWS • Github, Gitlab, BitBucket, Trello, Jira
    Featured Skill Firebase
    API
    RESTful API
    Redux Saga
    ExpressJS
    NestJS
    Node.js
    React
    MongoDB
    React Native
    JavaScript
    TypeScript
    PostgreSQL
  • $45 hourly
    • 5.0/5
    • (4 jobs)
    Experienced iOS and Flutter Developer with over a decade of commercial experience, specializing in iOS development and leading high-performing mobile development teams. With a strong focus on the iOS ecosystem, I have delivered high-quality native applications using Swift, SwiftUI, and Objective-C, while also leveraging Flutter for cross-platform solutions. I have made significant contributions to the successful development and launch of 50+ mobile applications, with a substantial portion built specifically for iOS devices. My expertise spans a range of industries, including Food Delivery, E-commerce, Healthcare, Travel, and Hospitality, where I’ve created elegant, scalable, and user-friendly iOS applications tailored to sector-specific needs. As a lead iOS developer in teams of 3–10 professionals, I’ve guided projects from concept to deployment, ensuring seamless integration with iOS-specific technologies and adhering to Apple’s best practices and design guidelines. I am proficient in App Store deployment, performance optimization, UIKit/SwiftUI-based UI development, and native iOS frameworks. I thrive in dynamic, fast-paced environments, solving complex technical challenges and delivering innovative iOS solutions that enhance user experience. Passionate about pushing the boundaries of iOS mobile development, I remain committed to crafting intuitive, high-performance apps that delight users and meet business goals.
    Featured Skill Firebase
    Fastlane
    RESTful API
    Healthcare
    Machine Learning
    Stripe
    HIPAA
    Apple HealthKit
    VoIP
    Android
    AI Mobile App Development
    iOS Development
    Swift
    Dart
    In-App Purchases
    Flutter
  • $35 hourly
    • 5.0/5
    • (5 jobs)
    Experienced in HTML, CSS, React, JavaScript, TypeScript, Node JS, Rest API, React Native, AWS, Linux server. I'm specialized in developing web applications using Node JS and React(SPA and SSR using Next JS), mobile applications with React Native. I'm experienced in implementing payment systems and google maps in applications, oAuth and JWT security approaches. I'm using usually Git as control version system; Jest, enzyme, supertest for testing; Slack for communicating; Jira as task and bug-tracking system
    Featured Skill Firebase
    NestJS
    styled-components
    Material UI
    MongoDB
    Node.js
    HTML5
    React
    Docker
    JavaScript
    MySQL
    CSS 3
    Next.js
    NGINX
    TypeScript
  • $45 hourly
    • 5.0/5
    • (4 jobs)
    ⭐️⭐️⭐️⭐️⭐️ Expert in mobile app development ⭐️⭐️⭐️⭐️⭐️ Greetings! 👋🏻 My name is Yevhenii. I'm a seasoned Mobile Developer (Kotlin). 𝗠𝘆 𝗽𝗿𝗶𝗺𝗮𝗿𝘆 𝗴𝗼𝗮𝗹 𝘁𝗼 𝗵𝗲𝗹𝗽 𝗶𝗺𝗽𝗹𝗲𝗺𝗲𝗻𝘁 𝘆𝗼𝘂𝗿 𝗶𝗻𝘃𝗮𝗹𝘂𝗮𝗯𝗹𝗲 𝗶𝗱𝗲𝗮 𝘁𝗼 𝗹𝗶𝗳𝗲. 👨🏻‍💻 As a seasoned Mobile developer, having a lot of experience, I know how to approach many various and complex projects. Knowledge in mobile development and possession of all necessary skills allow me to provide you with a 𝘀𝗸𝗶𝗹𝗹𝗲𝗱 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗽𝗿𝗼𝗰𝗲𝘀𝘀 𝘁𝗼 𝘀𝘂𝗰𝗰𝗲𝘀𝘀𝗳𝘂𝗹𝗹𝘆 𝗿𝗲𝗮𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻 𝗼𝗳 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁! I have the following skills: | ✅ Kotlin | ✅ Java | ✅ MySQL | ✅ MongoDB | ✅ Gradle | ✅ Git | Let's chat about your project and explore how I can help you bring your vision to life. 💡 Share me your invaluable idea 📩 Thanks for your time, Yevhenii
    Featured Skill Firebase
    Moxy
    EventBus
    Dagger 2
    Android NDK
    Android SDK
    Butter Knife
    Realm Database
    SQLite
    Android App Development
    Android
    User Authentication
    Kotlin
    Retrofit
  • $40 hourly
    • 5.0/5
    • (2 jobs)
    I'm professional Android Developer. I worked on such projects as Social Networks, Market Places, Cryptocurrency Trading Platform, Ride-sharing system, e.t.c. I use such technologies and approaches as: Kotlin, Java Android SDK MVVM/MVP Clean architecture Clean code Multi-module structure Dagger2/Koin Google Firebase Google Cloud Services RX/Coroutines Cicerone/Android Navigation I personally like music, board games and football
    Featured Skill Firebase
    Kotlin
    Tablet
    Dagger 2
    Clean Architecture
    Android
    Model View ViewModel
    Retrofit
  • $35 hourly
    • 5.0/5
    • (4 jobs)
    Hey! I am passionated with Front-end development since childhood and have been professionally involved to this process for 4️⃣ years. ⭐ So, I am highly skilled in creating dynamic user interfaces, implementing advanced features such as animations, routing, and HTTP requests, and integrating with backend services. ⭐Your project will be kept up-to-date with the latest trends and technologies in frontend development, and I will enjoy sharing my knowledge to help you with your goals! So far, I have - 3,5 years of experience on Upwork - 100% of my clients are long-term - 2000 hours of implementing and designing websites - 10 satisfied clients ➡️ What services I provide? - Angular development with Angular Material, Angular Universal, Angular 2+ - SOLID understanding of web application security and performance optimization.; - working with RESTful APIs - collaborating with cross-functional teams, including UI/UX designers, product managers, and backend developers. ➡️ Highlighted Skills: - JavaScript, TypeScript, jQuery; - Angular, Ionic; - NodeJS, Express.js; - Cordova, Capacitor; - HTML, CSS, SCSS, LESS, Bootstrap, Firebase; - MongoDB, MySQL, Firebase. - AWS - NRWL I can guarantee: ✔What I promise, I will deliver. I stick to my niche and what I'm good at. ✔Your website will be a clean build from the foundation up, making it easy to edit and manage on your own for years to come. ✔Close communication throughout the entire process so I can be sure to hit the mark. ✔Professionalism. I work hard at my craft and actively keep up with web design and development trends and best practices. I'm communicative and easy to work with. Also my English skills are on high level. I'm available for full-time long-term projects and If you're interested, please drop me a line, I'll be glad to help bring your ideas into real life!
    Featured Skill Firebase
    API Integration
    NGINX
    Ionic Framework
    Azure App Service
    MongoDB
    ExpressJS
    NodeJS Framework
    TypeScript
    Node.js
    RxJS
    Angular
    Front-End Development
    HTML
    CSS
  • $35 hourly
    • 5.0/5
    • (20 jobs)
    Lookin’ for a React / React Native / Node dev? I’m your guy! Do you have an idea you want to get off the ground? I can help you with the initial planning phases right through to completing development on your idea. I am a FullStack Web/Hybrid Mobile Apps Developer with over 8 years of experience. Experienced and comfortable in: - High level of knowledge in React/Redux, React Native, jQuery, Backbone/Marionette, Underscore - Node/Express - MySQL, MongoDB - CSS3 with Sass + Compass, Bootstrap - HTML5 - Firebase - Redux/Saga - BLE - Git, GitHub, Bitbucket With these and other technologies I've worked on about 20 projects of various complexity. Will help you bring ideas to life, with pleasure. Thank you for the interest to my profile!
    Featured Skill Firebase
    Redux Thunk
    iOS Development
    Android
    Mobile App Development
    Node.js
    React
    React Native
  • $35 hourly
    • 4.9/5
    • (15 jobs)
    I am reaching out to express my interest in the iOS Developer position and to introduce myself as a proficient and dedicated professional in the field. With over a decade of hands-on experience as an iOS developer, I bring a robust skill set and a proven track record of delivering high-quality applications with a strong emphasis on architectural integrity, clean code practices, and meticulous testing procedures. Key highlights of my background include: * Extensive Experience and Adaptability: Over 10 years of dedicated iOS development experience, showcasing adaptability from earlier expertise in RxSwift/MVVMc architecture to the Swift adoption of modern technologies. I have successfully transitioned from traditional approaches to embracing cutting-edge frameworks, including SwiftUI and Combine framework since their inception. In my most recent projects, I have adeptly employed The Composable Architecture, focusing on a reactive and scalable approach to streamline development and enhance app maintainability. * Strategic Technology Implementation: Specializing in strategically incorporating cutting-edge technologies to enhance app performance and user experience. I am well-versed in utilizing technologies such as WebRTC and VoxImplant for video calls, Tinode for messaging, gRPC for efficient remote procedure calls and GraphQL for versatile data querying. * Quality Assurance and Optimization: Proficiency in ensuring code quality through tools like SwiftLint, adherence to Git flow for version control, and utilizing Fastlane for efficient app deployment and automation. I am eager to bring my expertise to your team and contribute to your projects immediately. My commitment to delivering robust, user-centric applications aligns seamlessly with your vision for exceptional development standards. Thank you for considering my application. I am looking forward to the opportunity to collaborate and contribute to your team's success.
    Featured Skill Firebase
    Reactive Programming
    Machine Learning
    GraphQL
    Blockchain
    In-App Purchases
    NFT
    RxSwift
    Objective-C
    Swift
    Realm Database
    WebRTC
    Core ML
    Twilio
    Artificial Intelligence
  • $50 hourly
    • 4.9/5
    • (20 jobs)
    🔹 Hi! I am experienced iOS, macOS / Swift App Developer. 🔹 I have 5 years of commercial experience working as an iOS Developer creating apps from scratch to App Store release. ⛏ I have developed and published two my own apps to the App Store because I am obsessed with  development. Check them out in my portfolio! iOS skills: 📱 Swift 4.3 - 5.7 (Async await API included, etc.), Objective C 📱 UIKit, SwiftUI, SnapKit, AppKit, SpriteKit 📱 Core Data 📱 Combine, RxSwift 📱 Storyboard, XIB, UI programmatically 📱 CocoaPods, Swift Package Manager 📱 Push Notifications 📱 CocoaTouch, Cocoa 📱 AutoLayout 📱 Localization, Lokalize 📱 JSON 📱 GraphQL, Apollo, Shopify 📱 Xcode 📱 REST APIs integration 📱 Apple TestFlight, App Store submission 📱 Git 📱 Sourcetree, Github Desktop, Terminal 📱 In app purchases, auto-renewable subscriptions 📱 Unit testing 📱 Snapshot testing 📱 UI testing 📱 Integration testing 📱 A/B testing Integrations: 🔹 Firebase 🔹 Facebook, Google, GoogleAdMob 🔹 Google Cloud APIs 🔹 Appsflyer 🔹 Bitrise CI 🔹 Parse Thank you for your time watching my profile. Kindly let me know if you interested in our cooperation to provide great user experience for your future customers!
    Featured Skill Firebase
    Shopify
    SnapKit
    Unit Testing
    Bitbucket
    Git
    Apple Xcode
    RxSwift
    UIKit
    Swift
    Objective-C
    Smartphone
    Core Data
    iOS Development
    iOS
  • $75 hourly
    • 5.0/5
    • (20 jobs)
    A self-taught, purposeful, and enthusiastic software engineer with 9+ years of practical experience, specializing in Java, Android, Kotlin, automated testing, Team Leadership, and Agile methodologies. I head the Android department in New Line Technologies, and my responsibilities include developing and supporting software, communicating with customers, and mentoring subordinate developers. I have extensive experience in * the independent development of Android projects from scratch to app release on Google Play. * e-commerce projects. * work with AI models (TensorFlow, ONNX) * multi-media projects: live video streaming (using RTMP, UDP), video processing in real-time, video post-processing. * using devices hardware: WiFiDirect, Bluetooth, magnetometer, GPS. * work with a Bitcoin protocol, a Dash protocol, and a Bitcore wallet service/client. * large projects with globally distributed teams. * mentoring, code refactoring, troubleshooting, optimizing, and performance tuning. I became the Android team leader in only a year and a half due to my passion for software development and my skills in solving challenging tasks. In my spare time, you can find me in a gym squatting with a bar, playing with my son, or reading self-improvement books.
    Featured Skill Firebase
    User Authentication
    In-App Purchases
    Android
    User Profile Creation
    Smartphone
    Kotlin
    Tablet
    Native App Development
    Java
  • $25 hourly
    • 5.0/5
    • (8 jobs)
    Experience with development for iOS platform with SWIFT, cross-platform development for iOS and Android with Flutter/Dart. B2b mobile applications development, game development. Knowledge OOP principles and designing patterns, Xcode and Visual Studio Code working practice. I am constantly striving to learn new technologies and look to ways to better myself in this rapidly changing industry. "Flutter for web early adopter" program participant.
    Featured Skill Firebase
    Google Maps API
    JSON
    Redux
    Git
    Mobile App Development
    Android App Development
    iOS Development
    Dart
    Flutter
  • $25 hourly
    • 5.0/5
    • (2 jobs)
    📱Full-Stack Developer 💻 5+ years experience 👨‍💻Team Lead Services I Provide: 🖥 End-to-end web application development (frontend & backend) 🚀 Responsive UI/UX development using React, Angular, or Vue.js ⛓️ Backend development with Node.js, Express, or Python (Django/Flask) 🔗 API development and integration (RESTful & GraphQL) 💿 Database design and optimization (SQL: PostgreSQL, MySQL; NoSQL: MongoDB) ☁️ Cloud deployment and management (AWS, GCP, Azure) 🖇 Microservices architecture and serverless solutions ⏳Code reviews, debugging, and performance optimization 🛠 CI/CD pipeline setup for automated builds and deployments Skills: 🖼 Frontend: React, Angular, Vue.js, HTML5, CSS3, JavaScript, TypeScript ⚙️ Backend: Node.js, NestJS, Fastify, Express.js, Python (Django, Flask) 💿 Databases: MongoDB, PostgreSQL, MySQL 🧩 API Development: RESTful APIs, GraphQL ☁️ Cloud & DevOps: AWS, GCP, Azure, Docker, Kubernetes, CI/CD 🧑‍💻 Testing: Jest, Mocha, Cypress, Selenium 📊 Version Control: Git, GitHub, GitLab 📚Other Tools: Webpack, Babel, Nginx, Firebase About me: I’m a Full-Stack developer with a passion for building reliable, scalable, and efficient systems with 5+ years of experience. I bring a thoughtful, detail-oriented approach to every project. Here’s what I bring to the table: ☘️ Problem-Solving: I love tackling complex technical challenges and turning them into practical solutions. 🍎 Scalability: I design systems that grow with your business, ensuring long-term performance and stability. ⚡️ Efficiency: My code is clean, optimized, and maintainable, making it easy for teams to build on. 🤷🏼🙋🏻‍♀️🙅‍♂️ Collaboration: I’m great at working with teams, communicating clearly, and ensuring alignment with project goals. 🔒 Reliability: You can count on me to deliver on time, every time, with high-quality results.
    Featured Skill Firebase
    Animation
    Firebase Cloud Firestore
    Firebase Realtime Database
    Google APIs
    Google Maps API
    GraphQL
    RESTful API
    Google Cloud Platform
    JavaScript
    CSS
    Tailwind CSS
    React Native
    React
    Next.js
  • $33 hourly
    • 0.0/5
    • (1 job)
    - 10 years, Engineer: Developed projects of any complexity from beginning to production; - 7 years, Project Lead: Led projects with small/large teams: Process management / Risk management; - 5 years, Manager: Created roadmaps for a team with divided responsibilities and priorities; - 5 years, Mentor: Mentored engineers on a bench to the next level (Junior/Middle/Senior); - 7 years, Tools Expert: Maintained and developed tools to improve development velocity: Tools / Plugins / Documentations / Tech Templates / CI/CD scripts. ACHIEVEMENTS Startup Owner - Created a personal startup (Quest Helper GO) with almost 500.000 downloads, and an average rating of 4.1-4.7 out of 5.0. - Architect: Updated the architecture of a project by implementing a new multi-module architecture from a single-module utilizing Dagger 2 for Dependency Injection (excluding Dagger Android). Spearheaded the creation of the new architecture, provided mentorship to the existing team, authored comprehensive documentation, and delivered instructional lectures. The transition to a multi-module architecture significantly expedited the development of new features and project assembly. PROJECTS Project Lead & Developer: - Taxi driver (Led a team of 20 Android developers: knew and managed the entire technical base of the project; Created a roadmap; Managed migration to a multi-module project); - Photo recorder for roads (Created backpressure strategies with max optimization and speed of work app); - Experienced with AOSP (Providing risk factor assessments; Writing documentation for root applications; Simultaneously managing two different teams). As a main Developer that includes but is not limited to Research / Estimate / General development: - Analyzed screenshot/video streams using AI/ML and displayed information on top of the game; - Custom keyboard system; - Auto-clicker via Accessibility service; - Battery Saver and System Cleaner; - Animal feeder Bluetooth assistant; - Open-source libraries - ORM / Ads provider; - Encrypted messenger using RSA / AES.
    Featured Skill Firebase
    JUnit
    Room
    Google Ads
    Retrofit
    Dagger 2
    RxJava
    Coroutine
    Clean Architecture
    Kotlin
    Android
  • $40 hourly
    • 5.0/5
    • (3 jobs)
    🚀 Experienced Senior Full Stack Developer with expertise in React, Node.js, Python and AWS. Proven track record in delivering scalable solutions. Strong problem-solving skills. 📱💻 ✅Choose me for cutting-edge development, timely delivery, and seamless collaboration.✅ 🛠️Key Skills: - Frontend: React.js, Vue.js, Angular - Backend: Node.js, Express, Django - Databases: MongoDB, MySQL, PostgreSQL - Languages: JavaScript (ES6+), Python - Tech Stack: HTML5, CSS3, RESTful APIs, GraphQL 🚀Services: - Web Application Development - Mobile App Development - API Integration - UI/UX Design - Database Architecture 📞Let's Connect I am available for new opportunities and would love to discuss how I can contribute to your project's success. Let's connect here on Upwork to explore the possibilities.
    Featured Skill Firebase
    Webflow
    Tailwind CSS
    React
    CSS
    PHP
    JavaScript
    WordPress
    MongoDB
    MySQL
    Django
    Node.js
    Angular
    Vue.js
    TypeScript
  • $20 hourly
    • 4.9/5
    • (5 jobs)
    Good with most popular APIs like FireBase etc. Developed and published several small projects, participated in several Enterprise-level projects.
    Featured Skill Firebase
    Dart
    Flutter
  • $30 hourly
    • 5.0/5
    • (8 jobs)
    Hey there! As a seasoned Full-stack JavaScript developer with a decade of experience, I'm thrilled to bring my expertise to startups and small to medium-sized businesses across various industries. From Media, Logistics, and Building to Healthcare, FinTech, and EdTech, I've got you covered! My diverse skill set includes proficiency in open-source applications, such as: JavaScript Frameworks React, Redux, Next.js, and Gatsby for seamless headless CMS implementations Node.js, NestJs, and Express Angular Vue.js Ruby/Ruby on Rails (RoR) Django/Python Combine my extensive UI/UX expertise with my keen eye for detail and conscientious communication, and you've got yourself a one-stop shop for high-speed, effective development at a competitive price. Let's create some amazing web and mobile experiences together!
    Featured Skill Firebase
    Artificial Intelligence
    Back-End Development
    Next.js
    Website
    ExpressJS
    NestJS
    Redux
    MERN Stack
    Mobile App Development
    MongoDB
    React
    AWS Amplify
    React Native
    Node.js
  • $30 hourly
    • 5.0/5
    • (3 jobs)
    Responsible and self-motivated experienced full-stack developer. Winner of the hackathon at NoCode Summit 2023. 🏆 Developer of a mobile application for the Red Cross. 🚀Author of a course on mobile application development. 🎓📲 Extensive experience in developing mobile applications on the cross-platform Flutter framework. Real-time screen updates. 🔥 Building powerful web applications. Combining mobile applications for multiple user roles and web applications into a single infrastructure. 😍 A user, manager, administrator, and owner can interact with the service in their own interface on a platform that is convenient for them. Embedding artificial intelligence in any process of interaction with the application. I have experience in building mobile applications of the following types: marketplace, online store, service exchange, booking system, taxi, delivery app, dating and social apps, message boards, finance tracker, habit tracker, affirmation app, internal business apps, and much more. 😎 Building chatbots based on popular messengers with processes of any complexity. Embedding artificial intelligence in any stage of user interaction. 🎯 I work with the following technologies: ✔ Flutter ✔ FlutterFlow ✔ FireBase ✔ Supabase ✔ SmartSender ✔ Make.com (ex Integromat) ✔ Zapier ✔ Node.js ✔ Scheduled functions ✔ SQL ✔ AppSheet ✔ Glide ✔ ManyChat ✔ BotPress
    Featured Skill Firebase
    Back-End Development
    Web Application Development
    Low-Code Development
    No-Code Development
    Mobile App
    iOS
    Android
    Supabase
    FlutterFlow
    Flutter
    iOS Development
    Android App Development
    AI Mobile App Development
    Mobile App Development
  • $30 hourly
    • 5.0/5
    • (10 jobs)
    I'm a mobile app dev specializing in Flutter. Having built 10+ apps - mostly being the sole developer, I bring experience in planning & building entire apps from ideation & tech stack decisions to building & deploying on the app stores. I'll help you understand how we can build your app & then go ahead and bring your plans to life in a beautiful, enjoyable & consistent experience that will have your users coming back to your app, to propel you to success! With clean, tested, & maintainable code that can be built upon. ✅ Upwork Top Rated & Verified Mobile Developer ✔︎ 5-star rated | 100% Job Success | 5+ years experience ✔︎ 10+ apps published to Apple App Store / Google Play ✔︎ Extensive iOS and Android experience (Flutter, Dart) Communicating & staying on the same page is vital. Which is why I'll always keep you in the loop with progress updates via UpWork, Zoom, or otherwise! Getting the app on your phone ASAP, so you can test it yourself. You set the vision & requirements, and I'll make them a reality. Don't hesitate to send me an invite/message so we can talk more about your project via call or chat! 🚀 Frameworks and programming languages · Cross-platform App Development: Flutter & Dart (iOS, Android, Web, Desktop) 📚 SDKs and libraries · Database + Auth: Firebase, Supabase, Hive, NoSQL, PostgreSQL · Payments / Subscriptions: Stripe, RevenueCat, Superwall, Square · Maps / GPS Location: Mapbox, Google Maps, Google Places API, OpenStreetMap · Push Notifications: FCM, OneSignal, Supabase · Analytics and Performance Monitoring Google Analytics, MixPanel SDK, Crashlytics · Social Media Integrations: Facebook, Twitter, Instagram, LinkedIn, Snapchat · Cloud Services: Google Cloud Platform · Cloud Functions: Firebase Functions, NodeJs, Firebase Hosting · Bluetooth Low Energy Device Connection / Integration · Advertising and Monetization: Google AdMob, Facebook Audience Network SDK, MoPub SDK · AI: OpenAI API, Whisper SDK · No Code / Low Code Builders: FlutterFlow
    Featured Skill Firebase
    Android App Development
    iOS Development
    Mobile App Development
    AI App Development
    FlutterFlow
    Smartphone
    Hybrid App Development
    In-App Purchases
    In-App Subscription
    Dart
    ChatGPT
    Flutter
    Android
    iOS
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