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I need a professional Flutter developer to build a modern Android application with a clean and responsive UI. The app should include user authentication, Firebase integration, REST API support, push notifications, and a secure backend. The code should be well-structured, optimized, and easy to maintain. The developer should deliver a high-quality application with proper testing and documentation.
Project ID: 40570238
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365 freelancers are bidding on average $19 USD/hour for this job

With over a decade of experience in mobile app development, specializing in Flutter, I understand your need for a professional Flutter developer to build a modern Android application with a clean and responsive UI. My background in scaling apps for over 1 million users and developing high-security systems in FinTech directly applies to the challenges of your project, ensuring a high-quality and secure application. A strategic insight for your project would be to prioritize proper testing and documentation throughout the development process to guarantee a well-structured and optimized codebase. As evidenced by my past success in building and scaling high-performance applications, I have the expertise to deliver on your requirements for user authentication, Firebase integration, REST API support, push notifications, and a secure backend. I invite you to reach out to discuss your project roadmap further and how I can contribute to the successful development of your Flutter mobile app.
$20 USD in 15 days
9.1
9.1

Hi there, We understand you're looking for a professional Flutter developer to create a modern Android app with a clean UI, featuring user authentication, Firebase integration, REST API support, push notifications, and a secure backend. At Webbook Studio, we have experience with similar projects, such as building a music voting mobile app using React Native and a furniture store mobile shopping app with Flutter. Our team is skilled in Flutter, REST API, and backend development, ensuring a well-structured and optimized codebase. We'll deliver a high-quality application with thorough testing and documentation. Can you share more details about the desired user authentication flow and the type of data that will be handled through the REST API? Feel free to message us to discuss the details! — Webbook Studio
$15 USD in 40 days
9.2
9.2

As an experienced and versatile developer, I can offer you a complete end-to-end solution for your Flutter Mobile App Development project. My proficiency in Flutter, Android/iOS development, backend systems, and REST APIs perfectly aligns with the functionalities and technological needs you've outlined. My passion for building clean, maintainable code results in high-performing and scalable applications. Lets chat
$20 USD in 40 days
8.9
8.9

Hello, I understand you're looking to develop a modern Android application using Flutter with key features like user authentication and a clean, responsive UI. I can help you build a robust app that integrates seamlessly with Firebase for authentication and efficient data management. Our solution will involve: - Developing a responsive and intuitive user interface using Flutter's powerful UI toolkit. - Implementing secure user authentication and management with Firebase, ensuring users can safely access your app. - Integrating REST API support for smooth data exchange and communication with your backend services. - Incorporating push notifications to keep users engaged and informed in real-time. - Ensuring a secure, scalable backend that supports your application’s growth and performance. With my expertise in Flutter, Android, and backend development, we'll create an app that not only meets but exceeds your expectations. Best Regards, Khorshed Alam, RS Software
$25 USD in 40 days
9.5
9.5

Hello, You're seeking a skilled Flutter developer to craft a modern Android application with a responsive UI and robust features. My expertise spans user authentication, Firebase, REST APIs, push notifications, and secure backend integration, ensuring a high-quality, maintainable, and well-documented solution. I’m Waqas from Eclairios, a professional software engineer with over 7 years of experience in app and web development. I have successfully completed 128 projects, earning a 5.0 rating from satisfied clients. I specialize in mobile apps (Android, iOS, Flutter), website development, custom APIs, and backend solutions. My goal is to deliver high-quality, scalable solutions that meet your business needs. Why hire me? ★ 100+ Projects Completed with 5-star rating. ★ 3 months of free post-launch support ★ Expertise in advanced technologies and systems Let’s connect and discuss how I can help you with your project. Best regards, Waqas
$16 USD in 40 days
8.4
8.4

Hi, I will build your Flutter Android app with Firebase auth, push notifications, and REST API integration, all wrapped in a clean, responsive UI ready for production. On a recent Firebase-backed Flutter project, structuring the repository with feature-based folders made handoff and future maintenance significantly easier. I will apply the same approach here. Questions: 1) Do you have specific screens or a Figma design in mind, or will I handle the UI layout? 2) Which REST API will the app connect to, and is the backend already built? Share your feature list or wireframes and I will outline the build plan today. Kamran
$19 USD in 40 days
8.6
8.6

Having developed several Flutter-based Android applications with user authentication, Firebase integration, and REST API support, I understand the importance of clean UI and secure backend for optimal user experience. Would love to bring your vision to life! How do you envision the app's user engagement strategy to ensure high retention rates? Regards, Yogesh Kumar
$20 USD in 35 days
8.4
8.4

Hi There, I can help you create a modern Android application using Flutter, focusing on a clean and responsive UI. With experience in Firebase integration and REST API support, I can ensure push notifications and a secure backend. I prioritize writing well-structured and optimized code that is easy to maintain. You can expect proper testing and documentation along with the delivery of a high-quality application. Let’s discuss your requirements in detail. My expertise in Flutter development will help bring your vision to life! Best Regards, Priyanka
$15 USD in 40 days
8.4
8.4

Hello, To keep your app fast and reduce battery usage, I would use a local database like Hive or Isar to store data on the device. Combined with Riverpod for state management, this helps the app load quickly, work smoothly offline, and reduce unnecessary API calls. With over 9 years of Flutter development experience, I build clean, well-structured apps with secure API token storage using Flutter Secure Storage and reliable Firebase Cloud Messaging push notifications for a great user experience. I communicate regularly, provide timely updates, and deliver reliable solutions that meet project requirements. I'd be happy to discuss your app and get started right away. Best, Niral
$15 USD in 40 days
8.2
8.2

Hi, Your project aligns perfectly with our experience building production-ready Flutter applications with scalable architectures and secure backend integrations. We can develop a modern, responsive Android application featuring: Flutter with clean, maintainable architecture (BLoC/Provider/Riverpod) Firebase Authentication (Email, Google, Phone, etc.) Firebase services (Firestore, Cloud Messaging, Analytics, Crashlytics) REST API integration with secure token-based authentication Push notifications and real-time updates Secure backend integration with role-based access Responsive, intuitive UI following Material Design guidelines Optimized performance, clean code, and comprehensive documentation Our development process includes UI implementation, API integration, rigorous testing, performance optimization, and deployment assistance to ensure a production-ready application. We can start immediately and deliver a high-quality, well-tested, and scalable Flutter application with complete source code and documentation. Regards, Ashraf
$20 USD in 40 days
8.1
8.1

Hello, I have carefully reviewed your requirements and understand the need for a modern Flutter Android application with a clean, responsive UI, secure authentication, Firebase integration, REST API connectivity, push notifications, and a scalable backend. I have 10+ years of experience in Flutter, Firebase, REST APIs, and mobile application development, and can deliver a high-performance, well-structured, fully tested, and maintainable application with clean architecture and comprehensive documentation. I WILL PROVIDE 2 YEARS OF FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE. WE WILL FOLLOW AN AGILE METHODOLOGY AND I WILL ASSIST YOU THROUGH THE ENTIRE PROCESS FROM DEVELOPMENT TO DEPLOYMENT. I am available to start immediately and eagerly await your positive response. Thanks.
$16 USD in 40 days
8.4
8.4

Dear , We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time. We are 25 years in this business and our technical specialists have strong experience in PHP, Mobile App Development, Android, PhoneGap, Backend Development, Documentation, Flutter, REST API and other technologies relevant to your project. Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews. Please contact us via Freelancer Chat to discuss your project in details. Best regards, Sales department Tangram Canada Inc.
$25 USD in 5 days
8.9
8.9

Hello We are Ominfowave Software Services Pvt. Ltd., and we have an expert mobile application development team with 10+ years of experience in building reliable, high-quality apps. ? Our Core Expertise •Android App Development (Kotlin / Native) •iOS App Development •Flutter & FlutterFlow (Cross-platform) Our team understands not just development, but also performance, user experience, scalability, and timely delivery. ? What We Can Deliver ✔ Social media integrations (Facebook, Google, Twitter, etc.) ✔ Google APIs (Maps, Places, FCM, YouTube, Analytics) ✔ Offline & cloud database solutions (SQLite, MySQL, Realtime DB) ✔ Secure payment integrations (Stripe, PayPal, Braintree) ✔ Ad monetization (AdMob, Appodeal, MobVista) ✔ In-App Purchases ✔ Location tracking & real-time features ✔ Chat & messaging applications ? App Types We’ve Built •Social Media Apps •Shopping & eCommerce Apps •Job Portals •Taxi / Carpooling Apps •VPN & Utility Apps •Travel & Booking Apps •Live Streaming Apps •AI & Machine Learning–based Apps ? Why Work With Us •10+ years of hands-on experience •Clean, scalable & secure code • Clear communication & regular updates • On-time delivery with quality assurance • Long-term support after project completion We would love to work with you and build a long-term, trusted business relationship. Let’s discuss your idea and turn it into a successful application Warm regards, Vishal Nasit Ominfowave Software Services Pvt. Ltd.
$18 USD in 56 days
8.5
8.5

Hi, I'm a Flutter developer ready to build your modern Android app with a clean, responsive UI. I'll implement secure user authentication, Firebase integration (Auth, Firestore/Realtime DB, push notifications via FCM), REST API connectivity, and a secure token-based backend integration layer. I write well-structured, optimized Dart code following clean architecture for easy maintenance and scaling, plus unit/widget testing and clear documentation covering setup and API integration. To scope this precisely, could you confirm whether the backend already exists and just needs Flutter integration, or if it needs to be built too? Happy to start quickly and iterate based on your feedback. Regards, Harsh Thoriya
$20 USD in 40 days
8.6
8.6

SURE, I have evaluated the project description and highly able to complete it -----------Flutter Mobile App Development I am a Mobile Application developer having 7 years of work experience with the expertise of React native/Xamarin/ Flutter/ Java and Kotlin (android) /Swift and objective (iOS )/ XML and Android XML Layouts (Android)/ Interface Builder and Storyboards (iOS). I have some queries to give you accurate time and price Please ping me to get started and provide you great results.
$20 USD in 40 days
8.1
8.1

Hi, I can help with your "Flutter Mobile App Development" project. I develop clean, maintainable PHP backends — core PHP and Laravel/Symfony, MySQL schema design, and well-structured REST APIs. For work involving php, mobile app development, android, phonegap, backend development, documentation, flutter, rest api, I pay close attention to validation, security, and readable code, delivering in small, testable milestones. I provide clean commits and clear documentation. Can we discuss the specifics before I firm up the timeline? ⭐ 5.0/5 from a recent client: "it was great working with him, did whatever changes i asked him as per my need." Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
$20 USD in 1 day
7.9
7.9

Hi there, I'd love to help build your Flutter application. I have 10+ years of experience developing scalable mobile applications with clean architecture, secure APIs, and production-ready deployments. For your app, I can deliver: Modern, responsive Flutter UI User authentication (Firebase Auth or custom JWT) Firebase integration (Authentication, Firestore, FCM, Analytics if needed) REST API integration Push notifications Secure backend integration Clean architecture with well-structured, maintainable code Unit and integration testing Complete documentation and deployment support A few questions: Do you already have the backend APIs, or should they be developed as part of the project? Which state management approach do you prefer (Bloc, Riverpod, Provider)? Will the app support offline functionality? Do you have UI designs (Figma), or would you like me to implement the interface from requirements? I'm available to start immediately and can provide regular updates throughout the development process. My focus is on delivering a fast, secure, and maintainable application that's ready for future enhancements. Looking forward to discussing your project. Best Regards Dinesh L
$15 USD in 40 days
8.2
8.2

Hi, I know you need a professional Flutter developer to build a modern Android app with a clean UI, secure authentication, Firebase integration, and REST API support. I’m confident you’ll be happy with the result. If not, you do not pay. I will also provide three months of free maintenance after launch. I can build a fast, secure, and responsive Flutter application with user authentication, Firebase integration, REST APIs, push notifications, and a well-structured backend. The app will be optimized for performance and designed to provide a smooth user experience. I will use Flutter, Firebase, and secure API integration to develop a scalable and easy-to-maintain application with clean, well-organized code. The project will include complete source code, testing, documentation, deployment support, and final delivery ready for production. Please check out my profile to review my past projects and portfolio: https://www.freelancer.com/u/Hammadhassan21 I am available to start immediately. Ping me to discuss the details and get started. Thanks.
$20 USD in 40 days
7.9
7.9

Hello, Greetings Hope you are doing well. I am a Mobile Application developer with over 5 years of experience. I am confident in my ability and skills to develop high-quality Mobile apps and would like to work on your mobile app project. I will complete the work as per your requirements. I want to discuss more this project to prepare the final concept. So let’s discuss this in detail over chat then will make plans to start work on it. Waiting for your earliest reply. Thanks. Shubham
$15 USD in 40 days
8.0
8.0

Flutter Android App Development Hello, I understand that you need a professional Flutter developer to build a modern Android application with a clean, responsive UI and a scalable architecture. The app should be secure, high-performing, and easy to maintain with seamless backend integration. Key Features: ➜ Modern & Responsive UI/UX ➜ User Registration & Authentication ➜ Firebase Integration ➜ REST API Integration ➜ Push Notification Setup Let's chat and discuss your project in more detail and start working ASAP. Thanks
$15 USD in 40 days
8.2
8.2

Rosario, Argentina
Member since May 30, 2026
$750-1500 USD
₹12500-37500 INR
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₹37500-75000 INR
₹750-1250 INR / hour
$750-1500 USD
₹600-1500 INR
€5000-10000 EUR
$250-500 USD
₹1500-12500 INR
$30-250 SGD
₹400-750 INR / hour
$750-1500 USD
₹12500-37500 INR
€12-18 EUR / hour
$15-25 USD / hour
$15-25 USD / hour
$250-750 USD