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4.8/5
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  2. Development & IT Talent
  3. Mobile App Developers
  4. (Current) Firebase Developers
  • $110 hourly

    • 5.0/5
    • (47 jobs)
    🥇 Award-Winning Mobile Developer with a spotlight on my language learning iOS app, Kleo, currently featured on Apple's list of Best Language Learning Apps. 🏆 Top-Rated & Expert-Vetted professional specializing in Flutter & iOS Swift Mobile Application Development. 🇺🇸 Honored as a Top Mobile Developer for hire in the United States from 2020-2023. 📰 Featured on Business Insider for my innovative contributions to mobile app development on Upwork. I've had the privilege of propelling clients to significant milestones, including achieving $2M in Annual Recurring Revenue (ARR). Some notable successes include: - A restaurant subscription app reaching $100K+ Monthly Recurring Revenue (MRR) - A fitness community app achieving $1.5M+ ARR. ⭐️ Client Testimonials: "Michael is a gem in the world of mobile app development..." "Among the top 3 developers I've worked with over the past three years..." "A quality developer and a quality human being..." Upwork Stats: 🏅 Top 1% of Mobile Developers 🏅 Top 5% of iOS Developers 🏅 Top 5% of Firebase Developers 🏅 Top 10% of Swift Developers 🎓 Proud Michigan State University Graduate with a Bachelor's Degree in Computer Science. With a solid eight-year trajectory as a Mobile App Developer, I've honed my skills across a plethora of projects that span iOS and Android platforms, utilizing Flutter and Swift to create high-impact applications. My forte lies in converting ideas into digital realities that propel businesses forward. From crafting engaging user interfaces to optimizing backend processes, my holistic approach ensures a robust and scalable app solution. I thrive in various development scenarios, whether its working with a team to deliver a project on a tight deadline or building an application from scratch all on my own. My experience extends to working with startups that have secured significant venture capital funding, as well as established enterprises aiming to expand their digital footprint. 🌟 Why Choose Me: Client Satisfaction: My reviews reflect the genuine value I provide. Effective Communication: I prioritize prompt and sincere interactions to ensure project fluidity. Mastery: I strive for flawless, visually appealing apps worthy of portfolio inclusion. 😁 Eager to collaborate! Whether you're a startup aiming to elevate your product or an established enterprise looking to scale, I'm here to help. Let’s kickstart our partnership with a complimentary 15-30 minute discussion to blueprint your pathway to success.
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    App Feature Development
    Back-End Development
    Front-End Development
    App Development
    iPad App Development
    Social Networking Development
    iOS SDK
    User Authentication
    iOS Development
    Flutter
    Mobile App Development
    API Integration
    Swift
    Push Notifications
  • $100 hourly

    • 5.0/5
    • (6 jobs)
    I am a Senior Web and Mobile Developer with full-stack application development experience focused on open source technologies and frameworks My experience encompasses building responsive web sites using modern web frameworks; cross platform mobile application development for enterprise and startups, I also have extensive experience in system integration with web services and databases. Having worked on a wide range of projects across multiple industries including financial services, pharmaceuticals, transportation and manufacturing, I am equally comfortable working as an individual and as part of a team. I aim to work closely with my clients to ensure the best possible solution is delivered. I am flexible with working hours and look forward to hearing from you to discuss any upcoming projects and requirements.
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    CI/CD
    Node.js
    Python
    Redux
    CSS 3
    JavaScript
    HTML5
    SQL
    Ionic Framework
    Angular
    React
    TypeScript
  • $70 hourly

    • 5.0/5
    • (6 jobs)
    Dave is an accomplished web developer with special expertise in developing web applications. He is an expert in Angular and Firebase and is always up to date with the latest developments. He is well versed in integrating any of the Firebase tools into your application whether you just want to use hosting to take advantage of Googles extensive CDN or you want to include authentication, storage, databases and cloud functions to really make your web app shine. Dave can make you website feel like a native application by taking advantage of Angular's extensive tools and services. This has the added bonus of only needing to manage one product that will work on any device from mobile to tablet to desktop. If your product requires native phone technologies Dave can use Ionic and Capacitor to turn your web app into an Android or iOS app giving you access to tools like push notifications.
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    Continuous Integration
    Figma
    Mobile App Development
    Hybrid App Development
    App Development
    Ionic Framework
    Cross-Browser Testing
    Google Cloud Platform
    Web Application
    TypeScript
    Angular
    D3.js
    RxJS
  • $60 hourly

    • 5.0/5
    • (7 jobs)
    🏆 Top Rated Plus Developer on Upwork 🏆 "A Senior Mobile Developer specialising in Flutter & Firebase Development." About Me 🔹 5+ years experience in Mobile Development (Android (Java) & Flutter) 🔹 4+ years experience using Flutter (Since Alpha Stages) 🔹 Led development for multiple startups and projects of various sizes 🔹 Founded my own tech startups (Very familiar with the startup lifecycle and mindset) 🔹 Helped startups translate business requirements and ideas into fully functional software 🔹 Co-founder of the Colombo Flutter Community, Sri Lanka's only Flutter Community 🔹 Known for building scalable and maintainable software that businesses can rely on to grow. 🔹 Guest Lecturer on Flutter Development for a notable University here in Sri Lanka. 🔹 First Class Honours in BEng (Hons) Software Engineering @ University of Westminster My Skills 🔹 Flutter & Dart: Flutter Mobile, Desktop and Web 🔹 Native Android (Java) 🔹 Responsive mobile design 🔹 Riverpod and BloC State management 🔹 Well versed using the Firebase Suite (Firestore, Authentication, Storage, Cloud Functions, Crashlytics, Push Notifications etc..) 🔹 Capable of planning and creating robust architectures of any size that can scale! 🔹 Git 🔹 CI/CD using Codemagic, Github Actions and Fastlane 🔹 Flutter training & mentorship 🔹 5+ live Flutter apps in App Store and Play Store combined 🔹 2 live web applications using Flutter Web 🔹 Development lifecycle, sprint and roadmap planning 🔹 Sprint leading Why me? 🔹 Discussed, planned, developed and shipped apps for startups and SME's all the way up to Governmental bodies (I was a key developer in the COVD-19 tracing app for the Ministry of Health in Sri Lanka) 🔹 Capable of translating business requirements into a roadmap that works for any organisations budget and timeline. 🔹 Apps I've worked on have reached over 50k+ downloads. 🔹 Top Rated Plus Freelancer on Upwork 🔹 Specialises in long-term contracts with very happy clients (Check my reviews). 🔹 Great team lead and mentor, have lead multiple developers and teams to deliver great apps on budget and on time. 🔹 Known for building maintainable and scalable software! Thanks for reaching the end of my long overview. Do reach out to see how we can work together.
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    Android App Development
    Mobile UI Design
    Cloud Computing
    MySQL
    Flutter
    Database
    iOS
    Android
  • $35 hourly

    • 4.7/5
    • (52 jobs)
    Hey! Thanks for visiting my profile. I am a seasoned Data Analyst/Scientist with a successful experience of solving real world business problems using data. I have more than 5 years of experience in Data Analytics, Data Extraction, Data Visualization, Machine Learning Modelling and Qualitative Data analysis. Here are the areas in which I my expertise can help your business leverage the power of data: 1. Data Visualization and dashboards building using BI Tools: 🚀 Microsoft Power BI 🚀 Google Looker Studio (Data Studio) 🚀 Tableau 🚀 Looker 🚀 Domo 🚀 Zoho Analytics 2. ETL tools knowledge: 🚀 Stitch 🚀 Fivetran 3. Big Data Extraction and Analysis using: 🚀 Google BigQuery & SQL 🚀 Metabase 🚀 AWS Athena & SQL 🚀 Google Dataproc & PySpark 🚀 Microsoft Azure Synapse & PySpark 4. Mobile App Analytics using: 🚀 Firebase & BigQuery 5. Machine Learning (Classification/Regression) using: 🚀 Azure Machine Learning Studio & AutoML 6. Adhoc Data Analysis using: 🚀 Jupyter/Colab Notebooks & Python libraries like Pandas, Matplotlib & Seaborn 🚀 R - Studio and libraries like ggplot2 I have a flair for transforming raw data into visual insights relevant for your business to skyrocket many folds. Feel free to drop a message if you need help with any of the services listed above and I'll be happy to collaborate! Looking forward to hear from you. Chitranshu Sharma
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    Data Visualization
    Marketing Data Analytics
    Microsoft Power BI
    Dashboard
    Data Analytics
    Web Analytics
    MySQL Programming
    BigQuery
    Zoho Analytics
    Looker Studio
    Python
    Data Science
    SQL
    Machine Learning
  • $18 hourly

    • 5.0/5
    • (12 jobs)
    I am a mobile developer using react native technology, I have experience with payments with stripe and similar, experience building vanilla react native applications (not using Expo) and migrating from Expo to react-native CLI, I have built some marketplaces and videoconference application-oriented to remote education
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    Ruby on Rails
    Mobile Development Framework
    Website Development
    Docker Compose
    Android
    Amazon Web Services
    Google Cloud Platform
    Backend Rest API
    React Native
    React
    JavaScript
  • $50 hourly

    • 4.8/5
    • (31 jobs)
    I am an experienced mobile and web applications developer with over 6 years of experience building applications in various domains, including healthcare, social networking, mobility as a service, and news. I believe in creating intuitive and visually appealing designs that are backed by clean and efficient code. I am proficient in a range of programming languages, including Dart, Typescript/JavaScript/JSX, Python, and Java. In addition, I have expertise in mobile frameworks such as Flutter and React Native, as well as web frameworks such as React.js, Angular.js, Flutter for web, and Django. I also have experience working with backend frameworks and SDKs such as Express.js, Spring-boot, Django Rest-Framework, and Firebase. I am known for my ability to adapt to different languages and frameworks and get the job done effectively. I am a friendly and effective communicator, and I have a passion for algorithms. Overall, I am a skilled and versatile developer with a strong track record of delivering high-quality applications. I would love the opportunity to contribute my skills and experience to your team.
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    User Authentication
    Chat & Messaging Software
    In-App Search
    Location-Based Service
    Android
    QR & Barcode Scanner
    Map Integration
    iOS
    Firebase Cloud Firestore
    Web Design
    Hybrid App Development
    TypeScript
    React
    Flutter
  • $75 hourly

    • 5.0/5
    • (16 jobs)
    I am a Google Developer Expert in Flutter and Dart, one of 90+ such people that are recognized by Google. I have a Ph.D. in Computer Science from Washington University in St. Louis. I worked as a Software Developer Intern at Google Irvine and had the option to continue to work there. I chose to come back to my beautiful hometown, Izmir, Turkey. I'm an Assistant Professor, teaching Mobile App Development with Flutter and Firebase, Human-Computer Interaction and Game Development with Unity. I provide R&D consulting services to local companies. I was also a remote consultant for Carnegie Mellon University. I have been programming for 25+ years and have a solid understanding of most systems. I try to contribute to libraries that I use. Please check my Github account for my contributions, mostly related to Dart, Flutter and Firebase. I recently founded my own company and have access to high quality local talent. I plan to scale up our operations in the near future. I love a good challenge. Send me your tricky app issues!
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    Android SDK
    Game Development
    AngularDart
    C#
    Dart
    Flutter
    Node.js
    Python
  • $50 hourly

    • 5.0/5
    • (8 jobs)
    Welcome to my profile. I am expirienced Front-End Developer, passionate about Angular 2+ and have good techincal expertise in various domain areas - from EV charging and Advertising Services to Real Esate and Educational platforms. Most of my projects are custom business automation solutions built from scratch. Invite me for an interview, if you need someone both creative and tech-savvy to craft a sleek Frontend functionality for your website or web app. Tech Stack: - TypeScript/JavaScript - Angular 2+, Angular Material, NGRX, NGXS, Angular Universal, RxJS - Unit testing: Jasmine, Jest, Karma - E2E testing: Protractor - CSS frameworks: TailwindCSS, Bootstrap - HTML, CSS, SCSS, Pug - WebPack, Gulp - Firebase, MongoDB - Git In addition to the above, I have extensive code review and refactoring skills. Please, feel free to contact and discuss your project details!
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    webpack
    jQuery
    Jade Pug
    HTML
    CSS
    RxJS
    TypeScript
    JavaScript
    Angular
  • $60 hourly

    • 5.0/5
    • (35 jobs)
    Hi! ✋ I'm Full Stack Developer and I have experience in different techs: 🏅 Frontend Stack 🏅 ✅ Languages: HTML, CSS, SASS, JavaScript, Typescript ✅ UI: Bootstrap, Tailwind CSS ✅ Framework: React, Next JS, Remix JS, Vue Js, Svelte ✅ State management: Redux, Zustand, React-Query, Mobx, Vuex, Pinia ✅ Components Library: Chakra UI, MaterialUI, NextUI, Vuetify ✅ Other Libraries: React-hook-form, StyledComponents, Emotion, React Chart ✅ Graphql Clients: Apollo, Urql ✅ Baas: Firebase, Supabase, Amplify, Hasura ✅ CMS: Strapi, GraphCMS, Contentfull 🏅 Nodejs Stack 🏅 ✅ Languages: JavaScript, TypeScript ✅ Framework: ExpressJS, NestJs, Fastify ✅ API: Restful Api, GraphQL ✅ Database: Mongo DB, Postgres, MySql, Redis ✅ ORM: Prisma, TypeORM, Mongoose, Sequelize ✅ GraphQL Server: Apollo, Nexus, TypeGraphql, Mercurius ✅ Other Libraries: Lodash, Dayjs, Moments, jsonwebtoken, zod, yup ✅ Package Mangement: npm, yarn, pnpm 🏅 Mobile Development 🏅 ✅ Languages: Dart, Java, Kotlin, Swift ✅ Framework: Flutter ✅ Platforms: Android, iOS, macOS, Web ✅ State Mangement: Bloc, Riverpod, GetX, Mobx, MVC ✅ Dependency Injection: Provider, GetIt ✅ Baas: Firebase, Supabase, Amplify ✅ API: Rest Api, Graphql 🏅 DevOps 🏅 ✅ Docker ✅ CI & CD ✅ DigitalOcean, Google Cloud, AWS, Vercel, Netlify, Heroku, Cloudflare Worker, Linode, Fly.io 🏅 Tools 🏅 ✅ Git, Github, Bitbucket, GitLab ✅ Project Management: Trello, Asana ✅ IDE: VsCode, AndroidStudio, Xcode ✅ API: Postman, Insomnia ✅ Swagger, Grahpql Playground
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Remix
    Dart
    iOS
    Android
    Flutter
    Next.js
    React
    MySQL
    PostgreSQL
    MongoDB
    ExpressJS
    Node.js
    TypeScript
    JavaScript
  • $20 hourly

    • 5.0/5
    • (13 jobs)
    I have a substantial learning curve that allows me to continue other developer jobs or unfinished projects.  Familiar with backend Api using firebase or JSON REST API. Experienced worked both individually or in a team using Jira, Notion, CI/CD tools, and Github. Feature Developed in Flutter (Using various state management bloc, provider, stacked): 1. Data stream integrations from firebase using auth, functions, configs, firestore, and storage 2. Stripe Payment integrations (CC, grabpay) 3. Popular Indonesia payment gateway (midtrans to support gopay/shopee) 4. Chat Feature 5. Online Shopping Feature 6. Social media feature (comments, like share, follow) 7. Twillio chat and video room 8. Geolocation and map feature 9. Image manipulation 10. Real-time chat and voice using the agora 11. In APP purchase I have developed some production Apps. You can see my work detail in the portfolio.
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    Android App Development
    iOS Development
    Mobile App Development
    In-App Purchases
    User Authentication
    Android
    Agile Software Development
    RESTful API
    Hybrid App Development
    Dart
    jQuery
    JavaScript
    CSS
    Flutter
  • $45 hourly

    • 5.0/5
    • (13 jobs)
    I'm a software engineer with more than 7 years of experience, specialized in developing react native applications from 5 years ago. and I have developed more than 60 applications and participated in more than 140 projects. and I have experience for leading a team and building successful projects from scratch. Technical Skills: .............................. • React-JS With Material-UI • Strong experience in react native animation and making the app smooth • Strong experience in developing native modules & npm packages • Experience in UI/UX Design, so I'll develop the design and be compatible with the original design in pixel and responsive on all devices • Integration with RESTFul API's & GraphQl • Integration with Shopify & WooCommerce • Socket-IO to build real time data • Pusher-JS • React Hooks • Redux-Toolkit & Redux Saga & Redux-Thunk ( For State Management ) • TypeScript & JavaScript • One-Signal • Firebase • Google Maps • Google Maps Directions • Social Auth SDK's (Google & Facebook & Apple & Twitter & Linked-In ) • Reanimated V2 • Video SDK & Audio SDK ( Build Custom players ) • Strong experience for payment gateways integration ( HyperPay & Strip & Moyasar & Apple Pay & Paytabs )
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    Redux
    Mobile App Development
    Android
    In-App Purchases
    iOS
    Laravel
    Django
    API
    CSS 3
    React Native
    MySQL
    Flutter
    React
    HTML5
  • $48 hourly

    • 4.3/5
    • (24 jobs)
    ✅ "Julio was hands-down one of the best freelances I've ever had the pleasure of working with." - If you want this level of service, see my profile, this is one of many happy customers. 🚀 Hello, my name is Julio. I'm a full stack developer, my goal it's to make your project a success, proposing solutions and helping my clients to develop a better product. My main experience is with Mobile development using Flutter framework, I aim to develop pixel perfect designs, with great code quality, that's highly maintainable and understandable for any developer, which will save a lot of time and money for my clients. My secondary experience is to develop API's with Django and Django Rest Framework, creating servers for different applications. Some of my Flutter abilities: - State management - (Stacked, Riverpod, Bloc) - Pixel Perfect Design - Firebase integration - Authentication, Cloud Messaging (push notifications), Crashlytics, Analytics, Firestore Database. - MVVM architecture - Stripe - In App Purchases - Sendbird chat - Clean code - Intercom - MixPanel - Segment - Unit tests - Integration tests - CI/CD - Graphql for Flutter - Rest API - 2+ years of programming with Kotlin for Android - Small native sdk(Android and iOS) integration with Flutter (plugin) Some of my Django abilities: - Api development with Django RestFramework - Secure Web Sockets, WSS, with Django-channels ASGI - Realtime database with REDIS - Geo-based database, using POSTGIS - Social authentication, both api and Web App - Stripe - Web Scraping - Reactive web page using VUE.js - Unit tests - Integration tests - CI/CD Experience with: - OpenAI Chat GPT - Machine Learning - Adobe XD - Figma - Sketch - JIRA - Slack - Clickup - Zeplin - Github - Bitbucket I have good experience working remote only, without the need for constant feedback. If creating top quality apps sounds interesting, send me a message and we’ll set up a time to talk. :)
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    Software
    Angular
    Android
    Django
    iOS Development
    Dart
    Web Application
    Push Notifications
    Flutter
    Mobile App Development
    iOS
    Machine Learning
    Python
    ChatGPT
  • $29 hourly

    • 4.7/5
    • (14 jobs)
    ✅. 6+ Experienced (Flutter | Android | IOS | Web). ✅. Full-time available with any timezone. ✅. Recommended by clients. In 6+ years experience in mobile application development, I worked as Android developer in initial 2 years. Then for past 4 years, I have been working as Flutter developer. I am having good skills on Firebase. I can build Firebase functions using Javascript, and can do work in iOS also for any platform specific work. I have worked on more than 30 projects (Chat, Social media, Video calling, Health monitor, Fitness watch, School management, Office management, e-Commerce, etc.) - Teamwork and good performance as a member and as a leader. - Have experience in BLoC & Cubit, RiverPod, Provider, GetX, and State Rebuilder. - I can do platform-specific implementation easily. I have experience in Android Java, Swift, and Objective-C. - I know PlayStore and AppStore distribution, Flutter web deployment in Firebase. Tools: Jira, Trello, Upwork, Git, Github, Bitbucket, IntelliJ IDEA, Android Studio. ==== Flutter Development Skills ==== • Flutter platform-specific integration (Android with java and iOS with objective-c and Swift). • Firebase auth. • Firebase chat. • Firebase push notifications. • Socket-based chat. • Get Stream. • WebRTC. • Payment gateway integrations. • Flutter Google Map integrations. • Local database (SQLite, Hive, File, and Shared preference). • State management. • Memory management. • API integrations. • Localisations. • Responsive and great UI integrations. • Animations. Work ethics: • Correct time management • Experience in project management • High Scalability of your idea • Quality of the final product • Fulfilment of actual need/demand and maintain long-term client relationship • Customer time-to-value after delivery (Consumability) Programming is not only my job but also my passion. I enjoy facing new challenges and helping clients to build their products.
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    API Integration
    Chat & Messaging Software
    Objective-C
    Swift
    Java
    WebRTC
    Flutter Stack
    Hybrid App Development
    Google Maps
    Dart
    Desktop Application
    Ecommerce Website Development
    Flutter
    Mobile App Development
  • $175 hourly

    • 4.6/5
    • (24 jobs)
    As a seasoned developer with over 20 years of experience, I bring a wealth of knowledge and expertise to every project I work on. Whether it's building web and mobile apps with Ionic Framework, designing IoT systems, or developing cutting-edge AI applications, I thrive on solving complex problems and delivering top-notch work. My recent experience as Chief Architect and AI Engineer for a successful content generation SaaS startup application has allowed me to hone my skills in natural language processing, machine learning, and data analytics. Prior to that, I spent several years developing progressive web and native apps with Ionic Framework, as well as designing and implementing IoT solutions for a variety of industries. One of my favorite things about development is the challenge of finding creative solutions to complex problems. I approach every project with a curious and open mind, always looking for ways to push the boundaries and exceed expectations. Let's work together to tackle your toughest challenges and create something truly remarkable.
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    Azure OpenAI Service
    OpenAI Codex
    Prompt Engineering
    AI Chatbot
    Mobile App Design
    Web Design
    Python
    Node.js
    Ionic Framework
    Angular
  • $60 hourly

    • 5.0/5
    • (11 jobs)
    I help clients with creating top-tier, user-centric iOS apps. I excel at translating complex concepts into user-friendly applications. Here's what I offer: ✅ Expertise in Clean Architecture: I utilize the MVVM method to craft robust, maintainable apps. ✅ Proficiency with the Latest Tech: I'm well-versed in SwiftUI and Combine, ensuring your app stays ahead of the tech curve. ✅ Seamless Database Communication: I ensure swift and secure data exchange with databases for maximum efficiency. ✅ Integration of External SDKs: I adeptly incorporate diverse SDKs to expand your app's capabilities. ✅ UI/UX Implementation: I specialize in transforming designs from UI/UX tools like Figma into pixel-perfect iOS interfaces, bridging design and development seamlessly. Additional benefits I provide include: 🔹 Comprehensive Testing: I conduct rigorous testing to catch issues early on, ensuring a smooth, reliable user experience. 🔹 Sustained Support: I offer ongoing updates and support post-project, keeping your app relevant and user-friendly. 🔹 Android to iOS Conversion: I proficiently port Android apps into equally engaging and functional iOS versions. 🔹 Proactive Suggestions: I bring to the table valuable suggestions to refine and enhance your app, aligning it closer to user needs and market trends. I thrive on new challenges and am confident in my ability to exceed your expectations. I look forward to helping bring your app vision to life. Let's build something remarkable together! Feel free to reach out to discuss your project in more detail. I'm always ready to explore new opportunities.
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    iPad
    iPhone
    iPhone & iPad Apps
    MapKit
    Google Maps
    Database Integration
    Payment Functionality
    Git
    RESTful API
    Geolocation
    API Integration
    Swift
    iOS Development
  • $27 hourly

    • 5.0/5
    • (11 jobs)
    I am experienced software developer with over 14 years of experience in Web and Mobile applications development with C#, PHP, React Native, Objective-C, Swift, Java programming languages, i have been engaged in many projects and worked on server-side / backend development and client-side / frontend development, highload projects, refactoring. I have strong knowledge of the object-oriented concepts and design patterns. After many years of working as highly qualified developer i got enough skills and knowledge to be very flexible and learn fast. Summary: - 14+ years of exposure to the IT industry(Information Technologies) - feel myself strong and confident as a PHP, ASP.NET, React Native(Javascript, Typescript), Sencha, Swift, HTML, CSS, JavaScript developer. - have unique ability in finding and solving issues in all parts of development - real fan of Object Oriented pattern in development - have knowledge and real world practice in developing for MySQL, MSSQL, PostgreSQL, NoSQL - enjoy working as a team and confident in working on my own - front, back end, full-stack development Programming Languages and Technologies: C#, Java, PHP, Typescript, Swift, SQL, Javascript, HTML ASP.NET(C#), ASP.NET MVC, Amazon Clouds, Azure Clouds, Rackspace, LINQ, Entity Framework, NHibernate, Webservices, Smarty, ExtJS/Sencha Databases: MySQL, MSSQL, PostgreSQL, NoSQL Web technologies: Bootstrap CSS, Zend Framework, HTML, DHTML, JavaScript, CSS, XML/XSL, Smarty, JSON, SOAP, CURL. Also: PDF Library, GD/ImageMagick, Authorize.net, PayPal API, Google checkout and many more
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Twilio API
    Hybrid App Development
    Bootstrap
    Google Cloud Platform
    C#
    Amazon Web Services
    TypeScript
    Database
    ASP.NET MVC
    PHP
    Node.js
    React Native
    React
    Web Development
  • $25 hourly

    • 4.4/5
    • (85 jobs)
    Since you're here, I'm sure you're looking for EXTRAORDINARY RESULTS. And that's exactly what I and my team can do for you. I'm offering you a No-Obligation FREE consultation regarding your project. In my experience, a quick call is the best way to determine if we're a good fit for each other. Invite me, and we'll schedule an interview. Let's Do IT! If you are looking to hire: Mobile App Developer & Web App Developer Flutter Developer Hybrid App Developer Fintech App Developer React Native Developer Cross-Platform App Developer iOS Developer Android Developer Backend Developer Front End Developer Firebase Developer Flutter + Firebase Developer React Native + Firebase Developer MERN Stack Developer MEAN Stack Developer You are at the right place. I and my team can exactly help you with these hiring and developing your dream App. Types of projects I have worked on: - Fintech App - Doctor Appointment Booking App - Babysitter App - Cab Booking App - MarketPlace App - Liquor Delivery App - Grocery Delivery App - Healthcare App - Ride Sharing App - Food Delivery App - Fitness Apps - Dating App - Money Transfer App - Social Networking App - E-commerce App - IoT App Further, to give you an idea about our process, whether it's Small Maintenance/Bug fixing Work or a Full-Fledged Development Project. Before we start, I will understand your requirement/problem statement. I will take full ownership to help you with the Full Transparency, Idea Validation, Limitations/Risks, Technologies/tools, and Human Resources required to achieve your goals and complete the project successfully. Our process includes: 1. Project Discovery: In this, we will schedule a call or chat session to understand the problem statement or the business/technology problem, you are trying to solve. We will provide you with free consulting and guide you on the requirement refinement, Business Model, Limitations, Ball-Bark Estimations, Our Project Development Methodology/Tools/Technologies, and Team, etc. 2. Technical Solution & Project Scope: Since now your most of the requirement is captured and we have an idea of what you are looking at. Based on our discussion we will provide you with: ★ Detailed scope of work ★ Technical Details ★ Timeliness & Cost Breakdown ★ Project Milestones ★ Legal Agreement 3. Project Execution: Once the project is finalized and kickoff is done we will start the project execution work using Agile/Scrum methodology. Our project execution steps include: ★ Wireframing & UI/UX Design Phase: As part of this process, our clients work with our award-winning UI/UX design team to bring the web/App concept to live. ★ Development (Coding) Phase: We share the regular web Links or builds for you to see the progress of your website and Mobile App projects. ★ Quality Assurance Phase includes UI/UX, Beta, and User Acceptance Testing. ★ Deployment and Maintenance: Once the app is live we will provide you free 60 Days Maintenance.
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    Web Application
    Java
    Python
    Kotlin
    PHP
    Android App Development
    Mobile App Development
    iOS
    iOS Development
    Android
    React Native
    Swift
    Flutter
    React
    Smartphone
  • $21 hourly

    • 5.0/5
    • (6 jobs)
    I am a highly skilled software engineer with about 6+ years in mobile app development. I have expertise in iOS & Android apps development. Here are some of my technical skills: Languages: Objective-c, Swift, Combine, SwiftUI, JAVA, Angular, PHP Tools: Xcode-8.3, Xcode-10.2(Swift 5.0), Android Studio My experience in programming includes but is not limited to the following area of expertise: - In Design using Autolayout, Constraint - CoreData, Core location, SQLite - AFNetworking, Alamofire - AVFoundation Framework for Audio, Photo, Video Manipulation - In-App Purchase / Push Notifications - Certificate Generation / Provisioning / Code Signing / App deployment to store - Chat Applications Development - Firebase Integration - Google, Facebook, Twitter API Integration - Social media integration like Google, Facebook, Twitter, Instagram etc. - AR Kit, iBeacon, BLE, IOT, Wrist Band, etc. -And more I believe customer satisfaction is key to success and thrive on delivering with 100% satisfaction. Thanks & Regards, Kinjal
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Android
    App Design
    RxSwift
    AWS Server Migration
    Kotlin
    Android Studio
    iPhone App Development
    Mobile App Design
    Java
    Objective-C
    Swift
    Mobile App Development
    Android App Development
    iOS Development
  • $35 hourly

    • 4.7/5
    • (47 jobs)
    ✅ Upwork Top Rated Plus & Verified Mobile Developer As an expert developer with 10+ years of experience in mobile application development, one of my most-respected qualities is the ability to find solutions to any problem. In addition, I am committed to open and ongoing communication with my clients, as this is key to every successful project. All of my projects have contributed to the growth and development of my clients’ businesses and significant increases in their profits. Android Skills: Kotlin, Java, RxJava, Dagger2, ButterKnife, LiveData, DataBinding, Room, OKHttp, Retrofit, Volley. Flutter Skills: Bloc, Riverpod, Go Router, RxDart, GetIt, Pusher, Stacked, Dio, Mobx My advantages: • World-class quality and experience • 24/7 support • Bug-free guarantee through comprehensive testing • Timely delivery • Scalable and clean architecture • 100% money-back guarantee
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Android App Development
    Java
    Kotlin
    iOS Development
    Dart
    NFC
    Flutter
    Smartphone
    Objective-C
    Swift
    Android
  • $100 hourly

    • 5.0/5
    • (51 jobs)
    🛠 Front-end: React JS / Redux / JavaScript / TypeScript / HTML5 / CSS3 and a lot of relative libraries and technologies 🛠 Back-end: NodeJS / ExpressJS / MongoDB / Mongoose / REST API / Firebase 📱Mobile App Development: React Native / Expo I'm a full-stack MERN developer having more than 6 years of experience working for a variety of clients, from individuals to corporations. I have developed web and mobile applications in crypto, healthcare, tourism, marketing, advertising, digital signage, dating, marketplace, hotel, delivery, personal portfolio, auto, game and other industries. I pride myself on providing frequent, professional and amicable communication, respecting timeframes, aiming to think outside the box and helping clients to build successful products. 💻 6+ years in software development ⏱️ Delivery in a timely manner. Focused on results instead of hours 💼 About 100 of completed projects 💬 Clear, friendly and professional communication 🗓️ Full-time engagement
    vsuc_fltilesrefresh_TrophyIcon Firebase
    CSS
    ExpressJS
    RESTful API
    HTML
    Node.js
    React
    JavaScript
    TypeScript
    MongoDB
    React Native
  • $25 hourly

    • 5.0/5
    • (12 jobs)
    🚀 Highly Experienced React & React Native Developer 🚀 I'm a skilled developer with expertise in React, React Native, and Expo. My strengths lie in creating exceptional mobile and web applications with a focus on top-notch user experiences. 💼 Experience: Proficient in React.js | React Native | Redux | React Hooks | MobX Skilled in JavaScript | TypeScript | HTML | CSS Mobile App Development with Java and Swift REST API Integration Apollo GraphQL Web Development with Next.js Familiarity with Bootstrap and Material-UI 🎯 Achievements: Successfully delivered numerous projects meeting clients' expectations. Consistently provided elegant and efficient solutions. Committed to delivering high-performance applications. Let's collaborate to turn your app ideas into reality. Contact me today, and let's create outstanding applications together!
    vsuc_fltilesrefresh_TrophyIcon Firebase
    User Authentication
    RESTful API
    GraphQL
    AWS Amplify
    Docker
    Node.js
    React
    Backend Rest API
    JavaScript
    Mobile Development Framework
    AWS Lambda
    Android App Development
    Mobile App Development
    React Native
  • $55 hourly

    • 4.9/5
    • (27 jobs)
    I can help you with your iOS application whether you want to build it from the ground up or you want to add new features/improve it. To provide the best results I implement a high-quality development process from end to end through prototyping, validation, implementation, launch, and further iteration. It's the responsibility of a programmer to provide secure, scalable, maintainable, and bug-free solutions nowadays. Because there is a high demand for complex iOS applications and more and more important parts of our lives connected with our devices. It's a challenging task and I always ensure that I meet these challenges. I am keen on developing my test-driven methodology and strive to keep up to date with my programming skills. Programming is not only my job but also my hobby. I'd be very glad to work with you. ✅ Swift, Objective-C, C, C++ ✅ MVC, MVP, VIPER, MVVM, Clean Architecture ✅ TDD, Clean, maintainable code ✅ Continuous Integration ✅ Agile methodology I graduated from the Ufa State Aviation Technical University in 2010, then worked as a full-stack web developer. I know the frontend and backend side of the projects. I then started my iOS career by building my own applications, games following that I worked for a large Multinational company in Russia where I developed complex iOS applications in Objective-C for iPhone/iPad. Presently, I'm an independent iOS engineer and ready to help you. You can find examples of successful projects in my profile. My recent project was a complex app for employment with video profiles. I was responsible for developing an employment app from the ground up. The main challenge was to implement a complex caching/prefetching system for video files. My skill-set: Firebase, Twilio, Payonline, Paymobile, card-io, Apache​ Thrift​, CircleCI, Bitrise, Git, CI/CD, Passbook, Core Data, In-app purchases, Sprite-Kit, Touch ID, Deep links, Branch, Mixpanel, TwitterSDK, FacebookSDK, XML/JSON, REST, H.264, FFMPEG, Wowza, RTSP, Linea Pro, Quickblox, iBeacon, Swift5.2, SwiftUI, Combine, Neumorphic design, Neumorphism, iOS Development, Swift, Objective-C, C/C++, JavaScript, Xcode. I look forward to working with you. Feel free to contact me for more details.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Problem Solving
    iOS Development
    Agile Software Development
    RESTful API
    Objective-C
    Continuous Integration
    Swift
    Stripe
    In-App Purchases
    Business with 1-9 Employees
    GraphQL
    Unit Testing
    iOS
    Apple Xcode
  • $42 hourly

    • 5.0/5
    • (8 jobs)
    Hi, I'm Andrey, a seasoned software developer with 14 years of experience in delivering quality results. My approach is always centered around finding the best solution for the project at hand. I believe I can bring a valuable contribution to your project with my expertise and skills. I specialize in full-stack development with a strong focus on iOS/Android application development and cloud integration. From the web and mobile sides, my skills include Swift, Kotlin, JavaScript, and TypeScript. I also have hands-on experience with Firebase, Cloud Messaging, Algolia Search, and AWS services. In addition to mobile development, I have extensive experience in more specialized areas such as developing geographic information systems for board computers, creating 2D/3D visualizations, and crafting drivers and OpenGL libraries for graphic cards. This expertise has also allowed me to build several games as hobby projects. I enjoy tackling complex technical challenges. Whether I'm enhancing existing code or creating new solutions from scratch, my adaptability and dedication ensure I meet your project's requirements. I would be happy to discuss your project further and answer any questions you may have. Let's work together to achieve your goals.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    ChatGPT API Integration
    DApp Development
    Prompt Engineering
    Artificial Intelligence
    Kotlin
    AWS Lambda
    Vue.js
    TypeScript
    Swift
    Java
    Python
    JavaScript
    C++
    C
  • $100 hourly

    • 5.0/5
    • (17 jobs)
    I have 11+ years of experience in building user-friendly and complex mobile applications. I have a solid knowledge of modern mobile app development using Kotlin, Swift, Swift UI, Jetpack Compose, Clean Architecture, high standards, and the latest trends in Mobile technology's stack. Digging into business problems is a crucial part of my approach. I believe in architecting solutions that not only meet immediate technical needs but also align with the business goals of the organization. I've built numerous Mobile apps from scratch and led the development that allows me to choose the right architecture and technologies that prioritize not just the functionality but the performance, and quality that contribute to a superior user experience, and achieve business goals. Each project for me is an opportunity to go beyond the conventional, delivering solutions that stand out in terms of both creativity and technical excellence. Let's collaborate to bring your mobile app ideas to life and make them stand out in the competitive app market.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Material Design
    React Native
    Flutter
    GraphQL
    User Profile Creation
    In-App Purchases
    Google Analytics
    Swift
    Native App Development
    iOS Development
    iOS
    Android App Development
    Android
    Kotlin
  • $35 hourly

    • 5.0/5
    • (16 jobs)
    🏆 TOP RATED PLUS🏆 in FLUTTER DEVELOPMENT "So it will be!" - that's how I like to say to my clients every time they ask me if I can get the work done on time, never fails. Hi there, thank you for checking out my profile, my name is Huy, I am a Mobile developer in Viet Nam, if you are looking for someone to respond fast, learn and adapt fast, and have good communication. Look no further!. As a self-learner and a technology enthusiast, I always offer the best quality apps to my clients, using the below skills: ✅ Flutter, dart, BLoC, Provider, Riverpod ✅ Beacon/Bluetooth/sensor connect ✅ AWS Appsync Graphql, Graphql apollo API, REST. ✅ Amazon Amplify, Firebase (authentication, database, analytics, notifications and etc.) ✅ Google SDK (Maps, Ads, Youtube, In-app Billing and etc.) ✅ Online payments (Stripe) ✅ Social Media integration (Facebook, Twitter, Instagram, G+, Youtube) ✅ App marketing and ads integration (Google Ads, App Flyers, UX Cam) ✅ Fully automated deployment pipeline (bitrise.io, Fastlane) I may not be one of the best Flutter developers on the market yet, but my communication skill is top-notch. I will always be the developer that always asks the right question before work and offers the right solutions, and is 100% transparent about my work. Open to full-time, part-time long long-term work.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Push Notifications
    Dart
    GraphQL
    Mobile App Development
    Flutter
  • $35 hourly

    • 5.0/5
    • (3 jobs)
    HOW CAN I HELP YOU Hello, I'm Emir. I develop mobile application solutions to business owners/entreprenuers. I help you with developing cross-platform, modern and native-looking mobile applications && all sorts of more stuff. When you hire me, you'll be left with clean, modular and non-repeating code (if project requirements allow so). Most developers on Upwork will bring smelly code to the table which at first seems managable but as the project scales it'll be harder and harder to maintain the codebase let alone develop new features. I'll try my best to not be that developer. WHAT TO EXPECT - Receive replies to messages throughout the day. - Voice/Videos conferences periodically, managing the business and strategic problems. - Weekly/Monthly periodic updates and working demos/PoC's - 7/24 support and in-depth conversations about your products and how to improve them.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Mobile App
    Dart
    Firebase Cloud Firestore
    Mobile App Development
    Android
    iOS
    Flutter
    AWS Amplify
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How to Hire Top Firebase Developers

How to hire Firebase developers

Want to build a mobile app? A Firebase developer can help you quickly set up a robust cloud-based back end for your mobile app.

So how do you hire Firebase developers? What follows are some tips for finding top Firebase developers on Upwork.

How to shortlist Firebase professionals

As you’re browsing available Firebase consultants, it can be helpful to develop a shortlist of the contractors you may want to interview. You can screen profiles on criteria such as:

  • Platform fit. You want a Firebase developer who understands how to use Firebase with your mobile ecosystem of choice (e.g., Android or iOS).
  • Project experience. Screen candidate profiles for specific skills and experience (e.g., using AngularFire to integrate Firebase features with your Angular project).
  • Feedback. Check reviews from past clients for glowing testimonials or red flags that can tell you what it’s like to work with a particular Firebase developer.

How to write an effective Firebase job post

With a clear picture of your ideal Firebase developer in mind, it’s time to write that job post. Although you don’t need a full job description as you would when hiring an employee, aim to provide enough detail for a contractor to know if they’re the right fit for the project. 

An effective Firebase job post should include: 

  • Scope of work: From unit testing to adding analytics to your mobile app, list all the deliverables you’ll need. 
  • Project length: Your job post should indicate whether this is a smaller or larger project. 
  • Background: If you prefer experience with certain mobile platforms, SDKs, or technologies, mention this here. 
  • Budget: Set a budget and note your preference for hourly rates vs. fixed-price contracts.

Ready to build a Firebase-powered mobile app? Log in and post your Firebase job on Upwork today.

FIREBASE DEVELOPERS FAQ

What is Firebase? 

Firebase is a Google-backed mobile app development platform. It’s known to the developer community as a back end as a service (BaaS) platform because it greatly simplifies mobile back-end development. 

Here’s a quick overview of the skills you should look for in Firebase consultants:

  • Firebase SDKs
  • Mobile app development
  • Mobile ecosystems (e.g., iOS and Android)
  • Back-end development

Why do you want to hire Firebase developers?

The trick to finding top Firebase developers is to identify your needs. Are you building a mobile app and want to set up a cloud-based, real-time NoSQL database with Cloud Firestore? Or will you be extending your app’s functionality with an event-driven back end via Cloud Functions? The cost of your project will depend largely on your scope of work and the specific skills needed to bring your project to life. 

How much does it cost to hire a Firebase developer?

Rates can vary due to many factors, including expertise and experience, location, and market conditions.

  • An experienced Firebase developer may command higher fees but also work faster, have more specialized areas of expertise, and deliver a higher-quality product with fewer bugs.
  • A contractor who is still in the process of building a client base may price their Firebase development more competitively. 

Which one is right for you will depend on the specifics of your project.

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