
Geschlossen
Veröffentlicht
Bezahlt bei Lieferung
I have an operational platform built around a FastAPI backend and a React-based web frontend. The core foundations are in place, but I now need a reliable local partner in Noida to carry the project over the finish line and into the mobile space. Backend My FastAPI services are live, yet they still need performance optimisation, a few new endpoints and some lingering bugs resolved. Clean, well-documented code and test coverage are a must so future iterations remain painless. Web Frontend The React application already runs in production. The next sprint centres on adding new features while simultaneously lifting the overall experience with UI/UX refinements, stronger mobile responsiveness and a refreshed visual identity that matches our brand guidelines. Mobile Apps Once the web work is stable, I want the same feature set delivered as native-quality apps on both iOS and Android. I am open to React Native, Flutter or another modern cross-platform approach if it keeps parity with the web codebase and streamlines ongoing maintenance. Local Collaboration Because past remote engagements cost me valuable time and money, in-person trust matters. I expect regular face-to-face syncs in Noida for planning, demos and quick problem-solving. If you are nearby and can commit to transparent communication and predictable delivery, we will get along well. Key Deliverables • Optimised, bug-free FastAPI backend with additional endpoints • Enhanced React web app featuring new functionality and upgraded design • Cross-platform mobile applications mirroring web features, ready for App Store & Play Store submission • Clear documentation (API, setup, deployment) and hand-off support Please share links to comparable work—especially projects that combine FastAPI, React and mobile builds—and indicate your availability for on-site meetings in Noida. I’m ready to start immediately with the right collaborator.
Projekt-ID: 40351964
87 Vorschläge
Remote Projekt
Aktiv vor 12 Tagen
Legen Sie Ihr Budget und Ihren Zeitrahmen fest
Für Ihre Arbeit bezahlt werden
Skizzieren Sie Ihren Vorschlag
Sie können sich kostenlos anmelden und auf Aufträge bieten
87 Freelancer bieten im Durchschnitt ₹45.255 INR für diesen Auftrag

As the lead at CnELIndia, I have extensively used FastAPI, React and mobile development tools like React Native to build robust, efficient and cross-platform applications. My team and I have over 18 years of experience delivering projects that go beyond client expectations. Our skill set is varied and extends from PHP to AngularJS to API development. A broad skillset is essential when dealing with projects that involve multiple technologies like yours. In terms of your project, we understand the importance of clean code, thorough testing, and documentation for seamless future iterations. Adding new features while improving performance requires an eye for detail and deep expertise which we precisely specialize in. Finally, I want to emphasis the fact that we are driven by your satisfaction; each and every one of our 743 satisfied clients can testify to this. We've demonstrated a consistent ability to start immediately, transparently communicate throughout the process and deliver results that exceed expectations - all traits you've specifically mentioned as important. The end-to-end support we offer, right from the delivery of optimized FastAPI backends, improved React web apps, fully-functional mobile applications in-line with web feature set till the documentation & hand-off support will ensure a seamless transition post-project completion. So let's get started right away as your app's success starts here!
₹45.000 INR in 15 Tagen
8,5
8,5

Hello, I’ve gone through your project details, and this is something I can definitely help you with. With over 10 years of experience in mobile and web app development, I specialize in React and FastAPI, ensuring clean architecture and maintainable code. My recent projects involved optimizing backend services and enhancing frontend applications for improved UI/UX and performance, aligning perfectly with your needs. I'll work to optimize your FastAPI services, implement new endpoints, and resolve any existing bugs. For the React application, I will focus on new features and a refreshed design to enhance user engagement. Finally, I'm equipped to develop cross-platform mobile applications that reflect your web features, ensuring seamless user experience and easier maintenance. Here is my portfolio: https://www.freelancer.in/u/ixorawebmob Can you share your timeline for completion and any specific UI/UX changes you're envisioning? I’m based in Noida and can meet regularly for effective collaboration. Let’s discuss how we can move your project forward! Regards, Arpit Jaiswal
₹49.950 INR in 1 Tag
7,5
7,5

Hi, We would like to grab this opportunity and will work till you get 100% satisfied with our work. We are an expert team which have many years of experience on Website Design, Mobile App Development, Android, AngularJS, Backend Development, Frontend Development, React Native, Flutter, API Development, FastAPI Lets connect in chat so that We discuss further. Thank You
₹45.000 INR in 7 Tagen
6,3
6,3

Hi, I am an IIT Grad, Meta Certified React Developer, ex-BFSI and worked at fortune 500 companies. I will make it a reality for you. As a Web & Mobile App Completion (React & Fast API), I will undertake a thorough performance optimization of the existing FastAPI backend, add new endpoints as per requirements, resolve lingering bugs, and enhance test coverage. I will then leverage React Native for crossplatform mobile app development, incorporating existing web features and functionality. What is your expected timeline for project completion? Also, Do you have any design preferences, brand guidelines, or reference designs? Kindly click on the chat button so we can discuss and get started. Will share you my prior projects done and my resume too. I have been doing freelancing since 2019 worked at top MNCs in both USA and India. Lets connect
₹40.000 INR in 7 Tagen
5,3
5,3

As a seasoned developer and head of Stallyons Technologies, I am uniquely positioned to bring your project to fruition. With over 12 years of experience, my team and I have a comprehensive understanding of business processes and the ability to create topnotch applications using technologies such as FastAPI, React, and mobile stacks like React Native and Flutter. Promising clean code, test coverage, and efficient bug resolution, we’ll ensure your FastAPI backend is optimized to deliver enhanced performance and supplemented with necessary new endpoints. Moving on to the frontend aspect of your web application - we'll not only realize your agenda to include new features but also undertake critical UI/UX upgrades for improved user experience with stronger mobile responsiveness that aligns with your brand identity. Our services further extend to ensuring that you have both iOS and Android apps that match up to the web functionality and are ready for App Store & Play Store submission. Unlike remote collaborations, being rooted in Noida, I can offer you the distinct advantage of in-person meetings that foster trust, transparency and prompt problem-solving. Maintaining strong client relationships has always been our USP and I’m committed to this bond with you. Let's exceed your expectations with adequate documentation (APIs, app setup & deployment) alongside unbeatable hand-off support.
₹45.000 INR in 7 Tagen
5,4
5,4

Dear Sir/Madam, I am an experienced Python Developer with strong expertise in building scalable backend systems, APIs, automation tools, and full-stack applications. I specialize in delivering clean, efficient, and production-ready solutions. I have successfully developed and deployed multiple live applications including healthcare platforms, legal service apps, school management systems, fintech apps, and real-time communication systems. My Core Python Expertise ✔ Django & Django REST Framework ✔ FastAPI (High-performance APIs) ✔ Flask ✔ SQLModel / SQLAlchemy ✔ PostgreSQL / MySQL / MongoDB ✔ Supabase Integration ✔ Authentication (JWT, OAuth) ✔ Payment Gateway Integration (PhonePe, Razorpay, Stripe) ✔ Web Scraping (BeautifulSoup, Selenium) ✔ Automation Scripts ✔ WebSocket & Real-time Systems ✔ Docker Deployment ✔ AWS / VPS Deployment ✔ REST API Design & Optimization What I Can Build For You Secure REST APIs SaaS backend architecture Admin dashboards Real-time chat systems Payment systems Data processing systems Microservices architecture AI/ML API integration Custom business logic systems Recent Project Experience Healthcare booking & wallet system Legal consultation backend platform School ERP & management API Fintech wallet & transaction management Real-time chat application (WebSocket + MQTT) Location-based services & geo APIs
₹40.000 INR in 30 Tagen
4,8
4,8

7 years shipping FastAPI + React products, with React Native mobile follow-ons. I optimise endpoints, add pytest coverage, and tighten React UX for mobile parity. Recent Noida-based project: backend refactor cut latency 40%, web revamp lifted mobile conversion 22%, and delivered Android/iOS builds in 8 weeks. Available for weekly in-person syncs. Budget ₹50k milestone works; let’s demo comparable work and cut your technical debt fast.
₹50.000 INR in 7 Tagen
4,9
4,9

I can help you complete and scale this platform by strengthening your FastAPI backend, enhancing the React frontend with improved UI/UX and responsiveness, and then delivering a cross-platform mobile app that mirrors your existing feature set. On the backend, I’ll focus on performance tuning, resolving existing bugs, adding the required endpoints, and introducing proper validation, logging, and test coverage so the system remains stable and maintainable. For the React frontend, I’ll refine the UI, improve mobile responsiveness, and align the design with your brand guidelines while integrating any new features cleanly into the current codebase. For mobile, I recommend a single shared codebase using Flutter or React Native to ensure parity with the web app while keeping maintenance efficient. The mobile apps will consume your FastAPI services directly, with secure authentication, consistent state management, and optimized API handling for smooth performance. I’ll also provide clean documentation for APIs, deployment, and environment setup, along with structured code so your team can easily extend the system later. If needed, we can plan phased milestones for backend optimization, web enhancements, and mobile delivery to ensure predictable progress and regular demos. Syed
₹45.190 INR in 6 Tagen
4,5
4,5

Hi there, Strong alignment with this project comes from experience completing and scaling React + FastAPI platforms with performance optimization, feature expansion, and cross-platform mobile delivery. Clear understanding of the requirement to refine the existing backend, enhance the React web app, and extend the same system into iOS and Android apps with consistent functionality. Hands-on expertise ensures efficient debugging, API optimization, clean UI/UX upgrades, and mobile development using React Native or Flutter for maintainable parity. Risk stays controlled through structured development, test coverage, clear documentation, and transparent collaboration with regular in-person syncs in Noida. Available to start immediately happy to connect and plan next steps. Recent work: https://www.freelancer.com/u/chiragardeshna Regards Chirag
₹45.000 INR in 7 Tagen
4,4
4,4

**Hi,** I’m Karthik, a Full Stack Architect with 15+ years of experience delivering scalable web & mobile platforms using React, FastAPI, and cross-platform mobile frameworks. I’ve worked on similar architectures where FastAPI backends power production-grade React apps and are extended into mobile (React Native/Flutter) with clean API reuse. **How I can help:** ✔ Optimize FastAPI (performance tuning, async handling, caching, clean endpoints) ✔ Fix bugs + improve test coverage & documentation ✔ Enhance React app (UI/UX, responsiveness, brand alignment) ✔ Build mobile apps with full feature parity (iOS & Android) ✔ Ensure production readiness (CI/CD, deployment, store submission) **Approach:** * Audit existing codebase → identify gaps & bottlenecks * Sprint-based execution with measurable deliverables * API-first design to ensure smooth mobile integration * Clean, maintainable, well-documented code I understand your need for **reliable collaboration**. While I’m based in Chennai, I can travel for key milestones and maintain structured, transparent communication with regular demos. **Recent work includes:** FastAPI + React SaaS platforms, mobile apps (Flutter/React Native), and performance optimization for live systems. I can start immediately and align with your timelines. Let’s connect and review your current system. **Warm Regards,** Karthik Full Stack Architect
₹65.000 INR in 7 Tagen
3,9
3,9

I understand that you’re seeking a local partner in Noida to finalize your FastAPI backend and enhance your React web application, while also developing cross-platform mobile apps. Ensuring the performance and reliability of your backend is vital for future iterations, and I can assist with that by optimizing existing services and adding new endpoints. With over 12 years of experience in full-stack development, including FastAPI, React.js, and mobile automation using Flutter or React Native, I can ensure a seamless transition to the mobile space while maintaining feature parity with your web application. My approach emphasizes clean documentation and consistent communication—key factors for successful local collaboration. Could you share more about the specific features you envision for the mobile applications? I'm keen to align my work with your vision. Looking forward to discussing this further!
₹50.000 INR in 7 Tagen
3,6
3,6

As an experienced developer well-versed in both FastAPI and React, I have the proven ability to complete your web and mobile app project with expertise and efficiency. My track record displays both the quality and range of the projects I've taken on: from custom admin panels to full business platforms, my work centers around clean code, top-tier performance, and long-term maintainability. These qualities align perfectly with your vision for an optimized FastAPI backend, improved React front-end, and reliable cross-platform mobile apps. Our project has an added advantage: my location. Being located in Noida allows me to offer regular and seamless face-to-face communication throughout the development process. I understand that this level of trust and proximity is crucial to a client's peace of mind, having worked on previous remote partnerships myself that didn't run smoothly. Ultimately, what sets me apart is my unique blend of technical expertise and clear business perspective. I don't just churn out code; I build practical solutions that solve real problems while aligning with your overall business goals. This same approach will be employed as we optimize your FastAPI backend, refine your UI/UX designs, build native-quality apps, handle hand-off support, and ensure your clear documentation is delivered on time. Let's transform your operational platform into a polished reality!
₹50.000 INR in 25 Tagen
3,4
3,4

Hi there, This is exactly the kind of end-to-end product refinement and scale-up I specialize in—taking a working FastAPI + React system, stabilizing it, and extending it cleanly into mobile. Backend (FastAPI): I’ll optimize performance (async flows, DB queries, caching), resolve bugs, and add the required endpoints with clean architecture, proper validation, and test coverage (pytest). Code will be fully documented for long-term maintainability. Web Frontend (React): Enhance features while improving UX/UI—better responsiveness, cleaner design system, and alignment with your brand. Focus will be on usability, speed, and consistency across devices. Mobile Apps: I recommend React Native for maximum code reuse and parity with your existing React app. This ensures faster delivery, lower maintenance, and consistent features across iOS & Android with near-native performance. Working Style (Important): I understand your need for reliability and transparency. While I’m not based in Noida full-time, I can: • Commit to scheduled in-person visits when required • Maintain daily progress updates + live demos • Ensure predictable delivery with milestone tracking Timeline: ~2-3 weeks (phased delivery) I’ve handled similar full-stack + mobile transitions and understand how to keep everything aligned without breaking existing systems. Happy to share relevant work and align on your roadmap immediately. Looking forward to collaborating.
₹40.000 INR in 7 Tagen
3,6
3,6

Hi, I can help you optimize your FastAPI backend, enhance your React app, and build matching mobile apps, with availability for . I focus on clean code, performance, and smooth delivery across web and mobile
₹45.000 INR in 7 Tagen
3,3
3,3

Hey, your project, Web & Mobile App Completion (React project looks like a great fit for my skills. I've worked on similar Website Design projects and can deliver solid results. Let me know if you'd like to chat about the approach.
₹40.000 INR in 7 Tagen
4,0
4,0

Hi there, This is exactly the kind of full-stack engagement where continuity and close collaboration make a real difference. I’ve worked on systems combining FastAPI backends with React frontends and extending them into cross-platform mobile apps, where performance, clean architecture, and smooth handover were key priorities. For your platform, I’d focus first on stabilizing and optimizing the FastAPI layer—refining endpoints, improving response times, and ensuring proper test coverage and documentation so the system scales confidently. On the React side, I’d enhance UI/UX with a mobile-first approach, aligning the interface with your brand while improving usability and responsiveness. Once the web experience is solid, I’d translate the same functionality into a cross-platform mobile app (React Native or Flutter), keeping parity and maintainability in mind. Being able to collaborate in person in Noida is definitely a plus for faster iterations and clearer alignment. I’d be glad to discuss your current setup and see how we can move this toward a polished, production-ready state together.
₹40.000 INR in 15 Tagen
2,3
2,3

Hello, I understand you need a reliable partner to optimize your FastAPI backend, enhance your React app, and extend it into mobile apps, with in-person collaboration in Noida. I’m SamreenCoders, experienced in FastAPI, React, and cross-platform mobile development. What I will deliver: • Optimized FastAPI backend (performance, new endpoints, bug fixes, test coverage) • Enhanced React app (UI/UX improvements, mobile responsiveness, new features) • Mobile apps (React Native / Flutter) with full feature parity • Clean documentation (API, setup, deployment) Approach: • Clean architecture + scalable code • Performance optimization (API + frontend) • Consistent UX across web and mobile Collaboration: • Available for regular in-person meetings in Noida • Transparent communication + milestone-based progress I focus on stable, scalable systems with clean code and smooth user experience. Feel free to message me so we can discuss the project further. Warm regards, SamreenCoders
₹40.000 INR in 7 Tagen
1,9
1,9

Hi, Could you share the specific optimizations and new endpoints you envision for the FastAPI backend? I’m experienced in enhancing performance while ensuring clean, well-documented code. With over 5 years in backend and frontend development, I’ve successfully tackled similar projects using FastAPI and React. I can also help create cross-platform mobile apps using React Native or Flutter, ensuring they reflect the web app’s features and design. I’m based near Noida and can commit to regular in-person meetings for effective collaboration. I’m ready to kick-start this project immediately, focusing on delivering optimized solutions and a seamless user experience. Let’s discuss how I can support you through this process. Best Regards, Naib.N
₹45.000 INR in 7 Tagen
1,7
1,7

Thank you for the detailed overview of your platform. Your setup with **FastAPI and React** sounds solid, and we would be happy to help take the project to the next stage. Our team can assist with **backend optimization, bug fixing, and development of additional FastAPI endpoints** while maintaining clean, well-documented code with proper testing. We can also enhance the **React web application** by adding new features, improving UI/UX, and strengthening mobile responsiveness according to your brand guidelines. Once the web platform is stable, we can build **cross-platform mobile apps (React Native or Flutter)** to ensure feature parity with the web system and prepare them for **App Store and Play Store submission**. We believe in clear communication, structured development, and transparent delivery. I’d be happy to discuss your requirements further and share relevant project examples. Looking forward to connecting with you.
₹45.000 INR in 7 Tagen
1,4
1,4

Hi, I came across your project and it maps exactly onto the work I do — FastAPI backends, React frontends, and cross-platform mobile delivery. I am based in Noida and happy to meet in person as often as you need. On the backend side, I have optimised FastAPI services for production workloads — refactoring slow query paths, adding structured logging, writing pytest suites with 80 %+ coverage, and documenting every endpoint with OpenAPI. I understand that clean, future-proof code is not optional when a team needs to iterate quickly. For your React web app, I focus on the things that actually move metrics: perceived performance, mobile responsiveness, and a consistent visual language tied to your brand guidelines. I work closely with design specs or help define them from scratch, and I ensure every sprint deliverable is production-ready — not a prototype. On mobile, my preferred approach for your stack is React Native — it lets us share business logic and API integrations with the existing web codebase, which cuts maintenance overhead significantly. I have shipped apps to both the App Store and Play Store and can handle the submission and release process end to end. I have attached links to comparable projects — one combining FastAPI microservices with a React dashboard, another a React Native app with a Python backend — and I am happy to walk you through the code on a call or in person. Looking forward to connecting. Sunil kumar
₹45.000 INR in 7 Tagen
1,1
1,1

Noida, India
Zahlungsmethode verifiziert
Mitglied seit Juni 30, 2020
₹600-1500 INR
₹37500-75000 INR
₹12500-37500 INR
₹250000-500000 INR
₹1500-12500 INR
$750-1500 USD
₹12500-37500 INR
₹37500-75000 INR
$30-250 USD
₹400-750 INR / Stunde
€8-1000 EUR
₹1500-12500 INR
₹600-1500 INR
₹1500-12500 INR
₹75000-150000 INR
$15-25 USD / Stunde
₹250000-500000 INR
₹75000-150000 INR
$10-50 USD
₹12500-37500 INR
$250-750 USD
$250-750 USD
$10-30 AUD / Stunde
$3000-5000 USD
₹50000-100000 INR