Full-Stack Mobile App Developer Needed to Complete Chat App to Production -- 2

@mrresearcher99

Hello, With 10 years of experience building full-stack web and mobile applications, I can confidently take ownership of an existing codebase and bring it to a stable, production-ready release. My expertise includes React Native, Node.js, PostgreSQL, REST APIs, Firebase, cloud deployment, and scalable backend development. My approach begins with a structured audit to identify technical debt, verify architecture, and prioritize critical fixes before completing authentication, real-time chat integration, media sharing, notifications, and production hardening. I have worked on real-time communication features and API-driven applications and am comfortable handling both frontend and backend development independently. I’d be glad to discuss your existing codebase and the best path to production. Best regards

@santoshkumars17

I'm Santosh, a seasoned Full Stack Mobile App Developer with over 5 years of experience creating high-quality, user-friendly applications. Your project needs a solid combination of software development skills to take your existing mobile chat app to production, and that's where I come in. I am proficient in both front-end and back-end development, having worked with technologies such as Flutter, Dart, Node.js, NestJS, PostgreSQL and Redis WebSockets to name a few - all which will be instrumental to completing the functionalities you require for your app. Moreover, my experience with Firebase and AWS ensures your project will meet the necessary testing, security and reliability standards. What sets me apart is my capability to handle a wide range of tasks including fixing current issues, implementing missing features and even preparing your app for production deployment all by myself. My approach as a developer involves thoroughly reviewing existing codebases to identify weak points and improve upon them in the most efficient manner possible, rather than reinventing the wheel. I have an affinity for turning ideas into reality through code and I would be committed to helping you finish your product properly and efficiently. Let's discuss how we can make this happen together!

@durgesh8527

As an experienced full-stack developer, my comprehensive skill set aligns perfectly with your needs. Having managed numerous Flutter projects, I am well-versed in front-end design and deployment on Android and iOS. On the backend, my proficiencies with Node.js and PostgreSQL—further complemented by my knowledge of Prisma and WebSockets—will ensure seamless integration and enhanced real-time chat functionality. Moreover, I have worked extensively with Flutter technologies utilizing Firebase for push notifications, making me adept at ensuring smooth communication for your app. As a bonus, my expertise extends to AWS and production deployment—skills that will prove invaluable during the preparatory stages of app store readiness.

@jafarali14

Hi, Your project is exactly the kind of work I enjoy—reviewing an existing codebase, identifying gaps, and turning it into a stable production-ready application. I have 5+ years of experience in Flutter and have shipped multiple Android and iOS apps with Firebase, REST API integration, push notifications, payment gateways, and clean architecture. **1. Flutter apps I've shipped:** * EasyBalance * Wynette Logistics * MyKidsEdu * ZSMS Staff **2. Backend/API experience:** I have extensive experience integrating Flutter apps with REST APIs, Firebase services, authentication, and third-party APIs. I'm comfortable working with existing backend APIs and resolving integration issues. **3. Real-time chat/WebSockets:** I have experience implementing real-time features using Firebase and API-based messaging. I'm also comfortable working with WebSocket-based integrations and existing chat implementations. **4. My approach:** First, I'll audit the existing Flutter app and backend, document issues, prioritize production blockers, then complete integrations, testing, and deployment without disrupting existing functionality. **5. Frontend & Backend:** Yes, I can handle the Flutter frontend and backend integration independently and take ownership of delivering a production-ready app. I'd be happy to discuss your current codebase and provide an honest assessment before we begin.

@mayankinnovative

I am Mayank, a 20+ year experienced full-stack developer with expertise in both Flutter/Dart for mobile development and Node.js/TypeScript for backend development. Having been in the industry for so long, I have built several Flutter apps from the ground up, some of which I'd be happy to share as examples. In addition, I have extensive experience working on backends and APIs, and have previously implemented real-time chat features using WebSockets, making me an ideal candidate for your project. Taking over an existing codebase can sometimes be challenging, but I approach it diligently by meticulously reviewing, cleaning up and patching any flaws I identify along the way. Being able to read and improve upon existing code is one of my specialties. Furthermore, as someone who has previously worked remotely with sole ownership over projects, I am skilled at communicating progress clearly and meeting deadlines with minimal supervision. One aspect that sets me apart is my ability to handle both frontend and backend development without overcomplicating things. This will be particularly valuable when ensuring seamless integration between the Flutter app and your existing backend APIs. Moreover, my background in AWS and proficiency in PostgreSQL/Prisma will aid in making your app ready for production deployment and optimizing its security and reliability. In conclusion, I understand your need for a skilled freelancer who doesn't shy away from partially built apps.

@technologiesit

As an experienced Full Stack developer with over 8 years in the field, I believe I possess the right combination of skills, expertise, and track record to handle this project seamlessly. My fluency in Flutter, Dart, Node.js and strong backend TypeScript experience make me well-equipped to review and make improvements to your existing chat app, ensuring top-notch quality leading up to its deployment. When it comes to auditing existing codebases, I am a thorough professional who focuses on improving simplicity without compromising on any functionalities. Additionally, my cross-functional proficiency will prove invaluable as this undertaking requires skill-sets straddling both the frontend UI development and backend infrastructure management. Lastly, I genuinely appreciate that you aren’t looking for an agency but a trusted individual who can provide transparent communication while taking full ownership of the project. This is exactly what I have been about throughout my career; fast delivery, clear communication and long-term support. Let's get this amazing chat app out there together!

@MQamar123

I'm Muhammad, and I'm the one-man band you're looking for to complete your chat app development. A longstanding tech enthusiast with a wide array of programming frameworks under my belt, I've honed my skills over the past seven years to meet the diverse needs of clients just like you. My profile boasts a deep comprehension of all the necessary Flutter, Dart, Node.js, NestJS, PostgreSQL, Prisma, Redis, Firebase, AWS stack technologies you require -- making your project right up my alley. Not only do I have real-time chat and WebSocket experience needed for your project but extensive backend and frontend (Flutter) skills as well. My approach to taking over existing codebases is thorough and meticulous - I start by reviewing and understanding what already exists before proceeding. As an independent worker with strong communication skills and a deep sense of ownership, rest assured your project would receive my undivided attention until it's ready to be deployed to production. Proven track record? You bet! From website development to mobile application deployment - I've done it all. And if you require assistance in deploying your app on Google Playstore or Apple AppStore, consider me your go-to ally. With comprehensive cloud computing knowledge and experience working with AWS DynamoDB and AWS Web Services among other technologies, I can take charge of those production deployment details too.

@ParasTech7

Hi, I can take ownership of your existing codebase and bring it to a production-ready release. I have extensive experience with Flutter, Node.js, TypeScript, PostgreSQL, REST APIs, WebSockets, AWS, and production deployments, and I'm comfortable auditing, improving, and completing partially built applications. I can handle both the Flutter frontend and backend independently while keeping communication transparent throughout the project.

@shayankhan333

Taking over someone elses half built codebase is a different skill than starting fresh, and its the part i actually enjoy, so a Flutter chat app that already has UI, a backend, an admin panel and a schema in place is a good fit for me. Youre after one solo dev, not a team, and thats exactly what you get with me. First thing id do is audit whats there before touching anything, read the existing code, the API layer and the schema, and map what works, what half works and what needs finishing. No rewriting for the sake of it. From there id wire the Flutter frontend to the backend APIs, finish auth and onboarding, then build the real time chat with sockets so messages land instantly. After that the safety side, reporting and blocking, then media sharing and push notifications, then tighten security and get it store ready. Ive worked across Flutter, Node backends, Postgres, Redis and socket based real time, so the whole stack is in my lane, not just one half. Quick questions: 1. Whats the backend, Node with Nest, and is it Prisma on Postgres? 2. Is real time already started, or building it from zero? 3. iOS, Android, or both for launch? Happy to share chat apps ive shipped so you see real work. Thanks

@jaroslavcaprata

Hi, there. I have experience taking over partially completed applications and bringing them to production by auditing existing codebases, fixing architecture issues, integrating APIs, and improving reliability. I have worked extensively with Flutter, Node.js, TypeScript, PostgreSQL, WebSockets, Firebase notifications, and cloud deployments for real-time applications and business platforms. For this project, I would begin by reviewing the current mobile app, backend, database structure, and admin panel to identify gaps, technical debt, and production risks. From there, I would complete the backend integrations, finalize authentication and onboarding flows, implement stable real-time chat functionality, and improve media sharing, notifications, reporting, and user safety features. My approach focuses on understanding the existing implementation first rather than rebuilding unnecessarily, allowing development to move efficiently while improving code quality, security, and maintainability. I am comfortable handling both frontend and backend development independently and taking full ownership of delivering a stable, production-ready application. I would be glad to discuss the current state of the project and provide an honest assessment of what remains to be completed. Thank you, Jaroslav Caprata

@KarthikTechCon

Hi there, I am Karthik, a senior software engineer with 15+ years of experience specializing in full-stack architecture, Supabase, and Lovable. I frequently resolve multi-domain routing issues and optimize multi-tenant SaaS platforms. How I’ll Fix Your School SaaS: Domain Consolidation: Resolve your 3-domain architecture vs. single-origin setup to fix CORS errors, session loss, and cross-domain auth. Supabase & Integrations: Standardize RLS policies and fix Edge Functions for Resend emails and Stripe subscription webhooks. Lovable Alignment: Re-sync front-end components with updated Supabase schemas without breaking existing UI or data. Availability & Start: US CST Alignment: Working directly during US Central hours for daily syncs and real-time execution. Timeline: Ready for a fast, focused sprint starting July 20th to get you shipped. Let’s connect on chat to discuss your domain setup and get this across the finish line! Best regards, Karthik

@nathanholmes

Taking over an existing app is often more challenging than building one from scratch because the first priority is understanding what's already working, what's incomplete, and what could cause issues in production. A structured audit upfront helps avoid unnecessary rewrites and keeps the project moving efficiently. I'd begin with a full review of the Flutter app, backend, APIs, and database, then prioritize the remaining work—authentication, real-time chat, notifications, media sharing, and production readiness—before focusing on testing, security, and deployment. Working in clear milestones also makes it easy to track progress and identify risks early. I've worked on full-stack applications involving mobile interfaces, backend integrations, APIs, and production-focused improvements, with an emphasis on extending existing codebases rather than overcomplicating them. Let me know if you'd like me to outline how I'd approach the audit and delivery phases for this project.

@mykhaylob4

✋ Hi there. I can take over your existing Flutter chat app and complete the frontend, backend, and production deployment. ✔️ I have experience shipping Flutter apps with Node.js backends and real-time features, having built similar chat applications from scratch. My approach to taking over an existing codebase is to first audit the current state, fix the critical issues, connect the Flutter frontend to the APIs, complete authentication and real-time chat, implement media sharing and notifications, and prepare for production deployment. I am comfortable handling both frontend and backend myself. Please click the 'Chat' button to start our valuable conversation. Looking forward to collaborating with you! Best regards, Mykhaylo

@nemanjam61

Hi there, I’ve reviewed your project details and understand exactly what you need. I have solid experience in Flutter, Node.js, API development, databases, and completing full-stack mobile applications from existing codebases to production. I will first audit the current app and backend, fix integration issues, complete authentication, chat, notifications, security features, and prepare the application for a stable production release. I’ll do my best to take ownership of the project and deliver a reliable chat app that meets your final goals. I hope we can work together. Regards

@guddusinghal07

Hello, I'm interested in helping bring your application to production. I have 15+ years of mobile development experience, including 5+ years with Flutter, delivering enterprise-grade Android and iOS applications. I've worked extensively on API integrations, authentication, real-time communication (WebRTC/LiveKit), Firebase, push notifications, CI/CD, and production releases. Answers to your questions: 1. Flutter apps: Enterprise smart home automation application featuring real-time communication, camera streaming, Video Door Phone (VDP), two-way audio, push notifications, and Firebase integrations. 2. Backend/API: Strong experience integrating REST APIs and gRPC services with Flutter applications and collaborating closely with backend teams on API design and implementation. 3. Real-time chat/WebSockets: Experience with real-time communication using WebRTC, LiveKit, NATS, and event-driven messaging. 4. Existing codebase: I begin with a technical audit, identify architecture and code quality issues, document gaps, prioritize production blockers, and then implement improvements incrementally while maintaining stability. 5. Frontend & backend: I can independently handle the Flutter frontend and API integration. For extensive backend development (NestJS/Prisma), I'm comfortable working with and improving existing backend code, provided the core architecture is already in place. I value clean code, clear communication, and long-term ownership. Regards, Anuroop Singhal

@guptakishan805

With my solid 5+ years of being a Full Stack Developer, I have amassed and honed the skills needed for your project. Specifically, I have exceptional expertise in both your frontend (Flutter / Dart) and backend (Node.js / PostgreSQL) requirements. Moreover, my experience in working with multiple API Development projects lays the basis for efficiently cleaning up your existing codebase and connecting your app to the backend. Additionally, my familiarity with real-time chat or WebSockets will expedite the completion of your real-time chat functionality. As a testament to my skillset, I have successfully shipped several Flutter apps serving different purposes which aligns well with the multimedia sharing and media notification flows that you need. The experience gained from these projects also allowed me to develop an approach that would enable me to readily take over an existing codebase. One aspect that sets me apart is my commitment to building long-term relationships through quality work and transparent communication. That means I don't just work on your project; I ensure it is done right by suggesting areas for improvement, ensuring scalability, and providing dependable support post-completion. So let's work together and turn your existing mobile chat app into a reliable digital product!

@sonika1419

**DO NOT PAY ME UNTIL I COMPLETE! :)** Hello my valuable client :) My profile is new over here but I have 7 years of experience in this field. I have completely understood about your project. Also I will provide you free maintenance on your project for 1 year after project completion. I can definitely complete this in your timeframe. Give me one chance to prove myself. Hit the chat button to get started. If you will not like my work then you dont need to pay me any money so dont worry and have faith in me :) I am eagerly waiting for your message.

@kend27

Hi, I can take ownership of both the Flutter app and backend and bring the existing product to production without rebuilding it unnecessarily. A relevant project involved taking over a Flutter-based driver application with a Node.js backend, reviewing incomplete integrations, tracing authentication and KYC flows across the mobile app, APIs, database, servers, repositories, and deployment branches, then completing the missing production work. I can share additional project details privately where permitted. On the backend, I have built TypeScript/Node.js and Python API systems with PostgreSQL, Redis, authentication, background processing, admin dashboards, third-party integrations, and AWS deployment. I have also worked on real-time communication systems using WebSockets, event-driven services, session state, media workflows, and push notifications. My takeover process is straightforward: audit the current codebase, run the existing builds, map incomplete flows, review security and data handling, identify blockers, and provide a prioritized completion plan with realistic estimates. I then work feature by feature, adding tests and documentation as the system is stabilized. I can handle the Flutter frontend, backend APIs, database, real-time chat, notifications, deployment, and production readiness myself. I’m comfortable working independently, communicating risks clearly, and improving what already exists rather than starting over. Ken

@dushyant317

With 10+ years of full-stack experience, I can independently audit, optimize, and complete your Flutter chat application by integrating the existing backend, finalizing real-time messaging, strengthening security, and preparing it for a smooth production and app store release.