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

@MoamenDesigner

Hi, I've successfully taken over partially completed Flutter projects before, so I'm comfortable auditing an existing codebase, identifying what's working, fixing what isn't, and getting the app production-ready without unnecessary rewrites. With around 5 years of mobile development experience, I can handle both the Flutter frontend and the backend myself, giving you a single point of ownership and clear communication throughout the project. To answer your questions: • Flutter apps: Business management, property management, and service apps with authentication, push notifications, Firebase, REST APIs, maps, and production releases. • Backend/API: Built and integrated Node.js REST APIs, SQL databases, Firebase services, authentication, and third-party integrations. • Real-time chat/WebSockets: Experience implementing live updates, messaging, push notifications, and WebSocket-based real-time communication. • Taking over existing code: I begin with a full audit, provide an honest assessment, prioritize fixes, then improve the codebase while preserving what's already working. • Frontend & Backend: if the backend already done or need small updates I can take it by my self but I can't develop the backend completely from scratch. I'd be happy to review your existing project and provide a clear roadmap to get it ready for production.

@rbtech1984

Hello There!!! ★★★★ ( I can audit your existing codebase, complete the missing features, and deliver a production-ready chat app. ) ★★★★ I've read your project carefully and understand you're looking for one reliable full-stack developer to take ownership of an existing Flutter chat app. The focus is reviewing the current code, integrating the backend, completing real-time chat, and preparing everything for production. ⚜ Flutter & Dart development ⚜ Node.js/NestJS API integration ⚜ PostgreSQL & Prisma support ⚜ WebSockets & real-time chat ⚜ Push notifications & media sharing ⚜ Code audit, testing & optimization ⚜ Production deployment & app store readiness I have experience working on existing codebases rather than starting from scratch, identifying issues quickly, and delivering stable, maintainable solutions. My approach is to audit first, document gaps, prioritize production blockers, and then complete frontend and backend integration with regular updates. Yes, I can handle both frontend and backend myself. I'd love to discuss your current architecture and roadmap. Warm Regards, Farhin B.

@Rajoriadares

Hello Client, Greeting of the day!!!! I read your job description I have sound of five years plus experience in App development. I have been DEVELOPED 35+ Apps, three taxi apps, Two socials apps and restaurant apps based on GPS location and notification functionality and based on different domain like sports, Health, GYM, personal business and social etc I have testing team for testing apps. I think I am strongest person for doing this job and provide the quality product with testing. I am always available for your support. Thanks Sr. Mobile Developer 

@irfanui

Hi, I reviewed your project: Full-Stack Mobile App Developer Needed to Complete Chat App to Production. I can build a scalable SaaS or business application with user roles, admin dashboard, subscriptions/billing, secure APIs, database structure, reporting, and cloud deployment. I focus on clean architecture, maintainable code, clear milestones, and long-term support. Please message me so I can understand your required modules, user flow, timeline, and preferred technology stack. Portfolio: https://www.freelancer.com/u/irfanui Regards, Mohammad 4th Dimension Partners

@durgesh8527

With years of experience in full-stack development and a proven track record of delivering reliable and scalable solutions, I am confident that I am the right fit for your project. I have ample expertise not only in all the technologies you mentioned, but also in leading-edge tools like Flutter, Node.js, Redis, Firebase, AWS, etc. which your project comprehensively involves. I have developed multiple successful Flutter apps in the past and have built several robust backend systems handling complex APIs - both skills crucial to your requirement. What sets me apart is my ability to quickly understand existing codebases and effectively build upon them without any disruption. Given the nature of your project where a clean handover is essential, my proficiency in reading and improving existing code will surely come in handy. My aim is not just to complete a task but to deliver a top-notch product while ensuring its security, reliability, and performance. Being a freelancer with a strong sense of ownership and an ardent passion for my craft, choosing me means your project will receive my undivided attention. I understand the importance of mobile-app and backend integration as well as working within deadlines with minimum hustle. Let's discuss how we can take your already impressive chat app to production!

@santoshkumars17

With over 5 years of professional experience as a Full Stack Developer, I bring a wealth of expertise especially in API Development, JavaScript and Mobile App Development, making me the ideal person to handle your project's needs. My proficiency in both frontend and backend technologies including Flutter, Dart, Node.js and NestJS matches your specific requirements perfectly. I have sound knowledge of AWS, PostgreSQL, and Redis which are essential to ensuring smooth deployment and handling the backend intricacies of your chat app. I understand the challenges associated with taking over an existing codebase and auditing it for any errors or areas of improvement. My work ethics prioritizes transparency in my communication so, you can expect honest feedback should I discover any issues. Since I've worked extensively on both complex business websites and mobile apps throughout my career,I am adept at working independently without overcomplicating things. My portfolio showcases several successful Flutter app projects along with their backend counterparts that make me confident in handling your partially built app and delivering a final product that goes above and beyond your expectations. So, let's connect and discuss how I can leverage all my skills to ensure smooth launch of your chat app to production.

@jafarali14

Hi, I read your requirements carefully, and this is the type of project I enjoy—taking over an existing codebase, identifying what's missing, and getting it ready for production. **1. Flutter apps I've shipped:** * EasyBalance * Wynette Logistics * MyKidsEdu * ZSMS Staff I have 5+ years of experience developing Flutter applications for Android and iOS with Firebase, REST APIs, authentication, push notifications, payment gateways, and third-party integrations. **2. Backend/API experience:** I've worked extensively with REST API integration, Firebase services, authentication, and existing backend systems. I'm comfortable debugging APIs, fixing integration issues, and collaborating on backend improvements. **3. Real-time chat:** I have experience implementing real-time messaging using Firebase and integrating chat-based features into Flutter applications. **4. My approach:** I'll first audit the Flutter app and backend, document technical issues, prioritize production blockers, complete the missing integrations, test thoroughly, and prepare the app for store release. **5. Frontend & Backend:** Yes. I can independently handle the Flutter frontend, backend API integration, debugging, and production deployment support. I'd be happy to review your existing codebase and provide an honest assessment before we begin.

@albertc1996

Taking over a half-built chat app is usually more about finding what’s actually reliable than immediately adding features. I’d start with a code and API audit, then separate the blockers into Flutter integration, backend/chat stability, notifications, media, and production readiness. Real-time chat, Redis/WebSockets, auth, reporting, and deployment all need to be tested together, not as isolated tasks. I can handle the mobile and backend work myself. Flutter isn’t my strongest stack, but Node/NestJS, PostgreSQL, APIs, deployment, and existing-code cleanup are familiar territory.

@mahads31

As an experienced full-stack developer and the founder of Solves Inn, I have successfully delivered numerous mobile apps, some of which were built using Flutter, that are in production today. This has honed my skills in tight integration between mobile and backend interfaces – your project's specific requirement. Additionally, I am adept in all the technologies you listed and well-versed with WebSockets too. Speaking of taking over existing codebases, I have ample experience in doing just that. Understanding and improving the existing work is not only a skill but also a passion of mine. My approach involves conducting an in-depth code review to gain an accurate understanding of where things stand. Consequently, I can effectively identify problems or deficiencies and take decisive measures for rectification without overcomplicating matters unnecessarily. A unique aspect of my service is that I'm a one-stop-shop. Being capable of handling both frontend and backend tasks myself eliminates any inconsistency or communication gap that might arise when working with multiple team members or agencies. I am not just about 'getting things done', but ensuring it is done right – a commitment mirroring your need for thoroughness and ownership in this project.

@mayankinnovative

With my extensive experience in PHP, Laravel, and WordPress, I have a solid understanding of backend development that will be needed to take your partially-built app to production. Having worked on projects that intensely impact sales and reliability, I am fully comfortable auditing existing codebases to understand and improve them. Additionally, I have a firm grasp on clean code practices, an important aspect for your project's stability and scalability. While my core proficiency does not clearly align with the front-end needs of this project, I am neither unfamiliar nor uncomfortable with Flutter, Dart or even mobile app development in general. Given my 20+ years in the field, I have had to adapt to the changing technology landscape multiple times over. This agility is something that will benefit your project - not just in terms of the work as required but also in ensuring continuity and avoiding disruptions due to hitches discovered later. In conclusion, I am eager to apply all my skills and knowledge in helping you realize a successful launch of your chat app. I believe in close collaboration and transparent communication as vital elements for completing any project effectively; you can trust me on these fronts. So, let's connect over a call or a meeting to discuss further details about your app.

@monicasynthesis

Hi, I've read your project description carefully and clearly understand your requirements for taking over your existing Flutter chat application, auditing the codebase, completing the remaining frontend and backend work, and preparing it for production. I have 5+ years of experience in Flutter, Node.js, TypeScript, PostgreSQL, real-time applications, and full stack mobile app development. • Built Flutter applications with secure authentication, push notifications, and production-ready deployments • Experience developing scalable Node.js APIs, PostgreSQL/Prisma backends, and WebSocket/Socket.IO-based real-time features • Skilled in reviewing existing codebases, identifying issues, refactoring for maintainability, and delivering stable production releases Best Regards, Monica Bhatia

@DigitalNightOwl8

Hey Mate , Good afternoon! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in AngularJS, API Development, JavaScript, Mobile App Development, PostgreSQL, Flutter, Node.js and Dart. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. For more details Chat with us

@mubeenm5026

Drawing on my wealth of experience with mobile and backend development, particularly in the realm of API connections, I am confident in my ability to take your chat app project to the finish line. I have a deep understanding of Kotlin and Swift, which places me in a unique position to handle any frontend challenges that may arise alongside my robust expertise in Node.js and TypeScript backend development. This enables me to traverse through diverse aspects of the app confidently. In terms of chat functionality and WebSockets proficiency, I can cite my work on an AI-powered chatbot project where I successfully integrated real-time messaging features for efficient user communication. Furthermore, I am well-versed in employing AWS services for deployment as well as ensuring proper security measures. Choosing me as your all-in-one mobile app developer will not only guarantee a smooth transition from the existing codebase with an improved version; it would also ensure that your project aligns perfectly with your specific needs. It is key for me to not only finish products but to finish them meticulously and efficiently with my clients' needs at the forefront. If you desire a dedicated professional who takes responsibility, communicates transparently, and consistently delivers reliable solutions, then let's make this happen today!

@andriii2

Hi, Have you already completed the backend API documentation and current deployment setup, or should I first audit the Flutter app, Node.js backend, database structure, and existing workflows to identify gaps before completing production features? You need an experienced full-stack developer who can take ownership of an existing Flutter chat application, improve the current codebase, complete missing functionality, and prepare it for a stable production launch. I will review the existing architecture, connect and optimize Flutter with your backend APIs, complete authentication, real-time messaging with WebSockets, media sharing, notifications, security flows, and handle backend fixes using Node.js, PostgreSQL, Firebase, and production deployment practices based on the current project needs. https://freelancer.com/u/andriii2/ I have shipped multiple mobile apps using Flutter and React Native, including apps with backend integrations, notifications, and real-world user workflows. I’m comfortable taking over partially built products and improving them without unnecessary rewrites. Looking forward to discussing your app.

@gowthamsarathy

Hello, To Answer your questions: 1. Yeah I've built several Flutter applications and I have immense experience in Flutter 2. Yeah I have built Backend and API also 3. Yeah I am having experience in working with real time chat and also in web sockets 4. My approach would be to first review the current Flutter app, backend, database, and API implementation to identify completed work, technical debt, and missing functionality. From there, I'll prioritize backend integration, authentication, real-time chat, media sharing, notifications, security, and production deployment while keeping the existing architecture clean and maintainable. 5. YES I can handle both front end and back end by myself. I reviewed your requirements and understand that you're not looking to build a chat application from scratch—you need an experienced full-stack developer to take ownership of an existing codebase, perform a technical audit, complete the missing production features, and deliver a stable, production-ready application. I'm comfortable working across both the Flutter frontend and the backend, improving existing code rather than rewriting it unnecessarily. I'd be happy to discuss the current project status and outline the fastest path to production. Looking forward to hearing from you. Best Regards

@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

@jonasdedzo

Hi there, the key of this project is one trusted full stack developer to take over your partially built Flutter chat app and finish it properly to production, handling both frontend and backend alone. I would start by auditing the existing codebase and telling you honestly what is solid and what needs work, then connect the Flutter app to the backend APIs, complete authentication and onboarding, and build reliable real time chat with WebSockets or Socket.IO. I would fix backend issues, add safety, reporting, and blocking flows, complete media sharing and notifications, and harden testing, security, and reliability before production deployment. I work across Flutter and Dart, Node with NestJS, PostgreSQL with Prisma, Redis, Firebase, and AWS, and I keep things simple rather than overcomplicated. I would share shipped apps and my takeover approach. I would love to finish this with you.

@Mayanks010

Hi, Thanks for sharing your project. It aligns well with work I’ve successfully completed for other clients, and I’m confident I can deliver a high-quality solution tailored to your requirements. Before providing an accurate timeline, scope, and budget, I’d like to clarify a few key details to ensure we're aligned from the start. Freelancer’s proposal character limit makes it difficult to cover everything thoroughly here. If you're available, let's connect via chat. I can walk you through similar projects I've completed, discuss the best approach for your specific requirements, and answer any questions you may have. Once I understand your expectations, I'll provide a clear execution plan with realistic timelines and pricing. I’m ready to get started as soon as we finalize the details and look forward to working with you. Best regards, Mayank Sahu

@rishi9343

With my robust 8+ years of full-stack development experience, I am confident that I can handle this project just as you envisioned it. I've shipped numerous mobile applications using Flutter and catered to various backend needs using technologies such as Node.js and PostgreSQL. This has equipped me with a deep understanding of the intricacies involved in mobile app and backend integration, with a penchant for building stable, scalable systems. Having an eye for detail would definitely help to undertake the task at hand. My years of working as a part of complete project from ground up, well compensates the requirement of working on pre-built codebases. Whether it's reviewing or improving codebases, I take pride in my meticulous approach to ensure clean and organized work. My accountability translates into maintaining excellent communication lines throughout the project and keeping you informed about each step. To truly leverage a one-stop solution for your project, I also have extensive knowledge in AWS infrastructure and deployment methods that’ll assist in effectively moving this app into production. Furthermore, I have worked extensively with Firebase and have adequate understanding of real-time chat functionalities or WebSockets.