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We are looking for an experienced React Native / Expo developer to take an existing mobile application prototype through to a fully functional, production-ready launch. The application is an internal driver onboarding, training and support platform for a UK transport business. The app has already been substantially designed and built. An existing React Native / Expo codebase and working front-end prototype are available. Example screenshots are attached to demonstrate the current design and functionality. We are NOT looking for the application to be redesigned or rebuilt from scratch. The successful developer will be responsible for taking the existing build and completing the technical/backend functionality required to make it a real working application. Scope of work The project is expected to include: - Review and tidy the existing React Native / Expo codebase - Retain and refine the existing UI/UX and responsive design - Apply/finalise company branding and assets - Set up a secure production backend/database - User registration, login and authentication - Driver activation/account functionality - Connect existing screens and workflows to live backend data - Training modules including video/content delivery - Track training progress and completion - Onboarding progress/status tracking - Basic assessments/tests and completion logic - Driver profile/account functionality - Driver support/query functionality - Notifications/updates functionality - Basic admin functionality for our internal team - Allow administrators to manage users, training/content and relevant statuses - Appropriate document/content storage - Testing, bug fixing and production hardening - Build the final Android application - Assist with Google Play deployment - Configure the required production environment - Provide documentation and handover on completion Supabase or a similar cost-effective backend solution is preferred, although we are open to recommendations from an experienced developer. Existing Build The attached screenshots are examples from the existing prototype. A much more detailed specification and access to the existing codebase will be provided only to the selected/shortlisted developer. The final application should closely follow the existing design rather than being replaced with a generic template. Ownership This is important. All development completed under this project must become the exclusive property of our company. The company must retain full ownership and administrative access to: - Source code - GitHub/repository - Backend - Database - Hosting - Developer accounts - Build/deployment accounts - Application assets - Documentation The developer must not retain ownership or dependency over any part of the finished system. When Bidding Please include: 1. Your fixed-price estimate for completing the project 2. Estimated timeframe 3. Examples of React Native / Expo applications you have built 4. Your experience with Supabase/Firebase or similar backends 5. Your experience deploying Android applications to Google Play 6. Whether you will personally complete the work or use a team 7. A short explanation of how you would approach taking an existing prototype through to production Please do not submit a generic proposal. We are specifically looking for someone comfortable inheriting and completing an existing React Native / Expo project. There is potential for ongoing paid development and maintenance work following successful completion.
Project ID: 40703400
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281 freelancers are bidding on average £825 GBP for this job

Hello, As an experienced developer proficient in React Native / Expo and a solid background in driving turnkey projects from initial design to complete deployment, I believe I am the ideal candidate for your venture. With a swift, strategic approach, I aim to take your existing prototype and efficiently develop it into a fully functional, production-ready application that aligns impeccably with your intended design and objective. Drawing on my extensive knowledge of mobile application development, backend systems, and AI solutions, I'll diligently review and refine the existing codebase while incorporating your company's unique branding. In terms of backend solution, while Supabase is favoured, I'm open to suggesting other cost-effective alternatives without compromising on overall quality or performance. My proficiency in Firebase, authentication & cloud services will ensure top-notch security features like user registration, login & authentication which will include driver activation/account functionality. Past clients have benefitted from my adherence to clean, scalable, and maintainable code that enables flexibility for future upscaling or enhancement in projects. Providing holistic services from designing APIs to deploying apps on Google Play Store is my forte. Rest assured all the developed components, including frontend-backend infrastructure will exclusively belong to you at the conclusion of this project.
£1,000 GBP in 10 days
8.8
8.8

Hi — Elias here from Miami. I understand this is an existing React Native / Expo product that needs to be finished properly, not redesigned or rebuilt. The first step should be a technical audit of the current codebase so we preserve what already works and identify where backend, state management, authentication, data persistence, and deployment still need production work. I’d connect the existing screens to a secure Supabase backend using Auth, PostgreSQL, Storage, RLS, and server-side functions where needed. From there I’d complete driver activation, onboarding/training progress, assessments, profiles, support requests, notifications, admin controls, content/document management, testing, and Android production deployment. I work directly on the core development and can coordinate additional support only where useful. I’m comfortable with React Native/Expo, Supabase/Firebase, authentication/RLS, push notifications, media/storage, EAS builds, and Google Play deployment. I’ll also ensure all repos, backend accounts, credentials, deployment access, assets, and documentation remain fully under your company’s ownership. A few questions to better understand the scope: Q1 – Is the existing prototype using Expo managed workflow or custom native modules? Q2 – Is any backend already partially implemented? Q3 – Do you already have a Google Play developer account? Looking forward to hearing from you.
£1,500 GBP in 70 days
8.5
8.5

Hi there, I can take your existing React Native/Expo prototype and turn it into a production-ready Android application without redesigning or rebuilding the existing UI. I’ll first review and tidy the codebase, then connect the existing screens to a secure Supabase backend, implement authentication, driver onboarding, training/progress, assessments, profiles, support, notifications, admin functionality, storage, testing, and production deployment. I’ll also handle Android build/Google Play preparation and provide complete documentation and handover, with all code, backend, accounts, and infrastructure remaining under your company’s ownership. I can work within the $725 budget and target around 8 weeks, subject to reviewing the existing codebase and detailed specification. Could you provide access to the existing Expo/React Native codebase so I can assess what is already completed and confirm the remaining work? Kindly send me a message to discuss more or directly award me. Thank you!
£550 GBP in 10 days
8.1
8.1

Completing and launching an existing React Native/Expo driver app for your UK transport business is a task where my seasoned expertise and my team's collective 14+ years of experience will come in handy. We have a proven track record crafting scalable and proficient web and mobile apps, as well as deploying them across various platforms. Our mastery encompasses the use of languages, tools, and frameworks such as React.js, Node.js, PostgreSQL (your preference), etc. Additionally, we bring hands-on experience with backends like Supabase/Firebase that you may require for cost-effective usage. Moreover, our skills in mobile App Development are deep-rooted which will ensure seamless implementation of your desired features like driver registration/authentication, account management, support/query integration, and notifications/update functionalities. Most importantly, we understand the importance of ownership; we strictly adhere to the notion that your codebase, backend, database, and even hosting should remain solely yours. We commit to complete this project within your set timeframe efficiently without compromising on quality. After successful completion of this project, if further development or maintenance arises we will always be ready to assist you professionally. Let's make your existing React Native/Expo app a driver onboarding solution brought to life!
£1,000 GBP in 18 days
7.6
7.6

Finishing an existing Expo driver app is mainly about making the current prototype dependable in production, not decorating screens. The real risk in projects like this is weak backend wiring, inconsistent state across onboarding/training flows, and an app that looks complete but breaks once real users, videos, documents, and status updates are involved. I’d start with an audit of the current codebase and data flow, then connect each existing screen to a properly structured backend so the final app stays close to your current design while becoming stable, secure, and maintainable. I’ve worked on React Native/Expo apps that needed exactly this kind of inheritance work: taking over an existing build, cleaning structure, adding auth, database logic, admin-side controls, notifications, and production deployment. Supabase would be a strong fit here for auth, database, storage, and role-based access, though I’d confirm that after reviewing the present code and how your training/content modules are currently modeled. I can also help make sure ownership is clean on handover so your team keeps full control of code, backend, assets, and deployment access. - Is the current prototype already connected to any backend at all, or is it still front-end only? - Do you want the admin functionality inside the app, or as a lightweight separate admin panel? - For training/tests, are the question structures and completion rules already defined in the detailed spec?
£450 GBP in 7 days
7.6
7.6

Hello!, I am a Florida-based senior software engineer and I can help you take this React Native / Expo driver app from existing code to fully polished and launch-ready. The real pain point here is usually not “building from scratch,” it’s finishing the app properly so the UI feels clean, the API and Supabase/PostgreSQL parts work reliably, and Android launch issues don’t show up at the last minute. I’d handle it in phases: 1) review the current codebase and spot blockers 2) complete core screens and driver flows 3) tighten backend/API integration 4) test thoroughly on device and prepare for release I’ve built production apps where stability, speed, and clean user flow mattered, so I pay attention to the small details that often get missed. If you want someone who actually reads the requirements carefully and cares about delivering something solid, that’s how I work. Relevant work: - delivery tracking app for a local logistics company - field service booking app with live updates - internal ops dashboard for a transport business - subscription-based React Native app with Supabase backend A few quick questions: 1) What is the main blocker right now, UI, backend/API, or app stability? 2) Is your Supabase schema already finalized, or do you want help cleaning that up too? 3) Is Android launch the immediate goal, or should the codebase be prepared for iOS as well? If you’d like, I can review the current state and map out the fastest path to launch. -James
£850 GBP in 5 days
7.0
7.0

Hi, I reviewed the project and understand the main requirement: completing your existing React Native / Expo driver app into a production-ready Android application without replacing its current design. I can tidy the existing codebase, refine the UI/UX, apply branding, and connect the onboarding, authentication, training, assessments, progress tracking, profiles, support, notifications, and admin workflows. Supabase will provide secure authentication, PostgreSQL data management, and storage for relevant content, with Android App Development completed through Google Play deployment and production hardening. I’ll keep the work clean, responsive, documented, and fully controlled through your company’s accounts, repository, backend, and deployment access. Let’s discuss here now.
£805 GBP in 30 days
7.2
7.2

Hi, I can take your existing React Native/Expo prototype and complete it into a production-ready Android application without rebuilding the UI from scratch. I have experience with React Native, Expo, TypeScript, Firebase/Supabase, API integration and Google Play deployment. I’ll review the existing codebase first then complete the backend, training workflows, admin functionality, testing and production deployment with full source-code ownership transferred to you. Tejal
£1,000 GBP in 30 days
6.9
6.9

Hi! This is well within what we do, and the stack is territory we know well. The one thing that shifts the real effort here — more than any item in the spec — is the current state of the codebase. A working front-end prototype can range from clean, structured screens ready to wire up, to something that needs meaningful tidying before backend work can begin. That gap is what determines the actual cost, so I'd want to review the repo before locking in a number. Happy to do that quickly once shortlisted. On how we'd approach it: Supabase is a solid fit and we'd go with it — auth, row-level security, storage and real-time are all built in, which maps directly onto user registration, driver activation, training progress, notifications and the admin layer. Video delivery would connect to Supabase Storage or a CDN depending on content volume. Assessments, completion logic and onboarding status all sit naturally in PostgreSQL with the right schema. The admin panel — user management, content updates, status changes — would be a lightweight web interface so your team isn't tied to a mobile release cycle to make updates. We'd handle the Android build and walk through the Play Store submission with you. On ownership: repo, Supabase project, build accounts, documentation — everything transfers completely at close. No retained dependencies on our end. That's standard for us on every project. Gustavo & the DoTheCode team
£750 GBP in 26 days
6.5
6.5

Hi, With nearly two decades in the tech industry and an extensive array of successful projects under our belt, including several impactful React Native/Expo builds, IT Flex Solutions India is ready to hit the ground running with your project. Our 40+ skilled developers are adept at inheriting and completing existing projects efficiently while preserving the original vision and design; making us a great fit for your needs. We have worked extensively with real-time backend options like Supabase and Firebase, and can leverage this experience to set up a secure production backend/database for you, ensuring smooth functionality across the app. At IT Flex Solutions India, we not only provide comprehensive web and mobile development solutions, but also understand the importance of complete ownership. We'll make sure that every part of the system - source code, backend, database, hosting, developer accounts - belongs exclusively to your company. As you look to deploy your Android application onto Google Play, our proficiency in this area should give you confidence in our ability to get your app noticed on the platform. Additionally, we pledge to document comprehensively throughout the development process so that a seamless handover is guaranteed upon completion. Thanks, SBM
£850 GBP in 15 days
6.8
6.8

Hi! Taking an existing React Native and Expo prototype through to a production-ready Android launch is exactly the kind of focused backend completion work I'm comfortable with. I'll review and tidy the existing codebase without touching the UI, set up a secure Supabase backend with authentication, driver profiles, training progress tracking, assessments, notifications, and admin functionality, then connect all existing screens to live data, harden everything for production, build the Android APK, and assist with Google Play deployment with full documentation and handover so your team owns every part of the system independently. Quick question: is the existing prototype built with Expo managed workflow or bare React Native, as that will shape the build configuration approach for the final Android release? I've worked on React Native and Expo applications with Supabase and Firebase backends, handled Google Play deployments, and delivered projects with complete source code and repository ownership transferred to the client on completion. I work personally on every project, no outsourcing. Ready to inherit your codebase and get it across the finish line properly! Hafiz S.
£725 GBP in 7 days
6.7
6.7

Your existing React Native / Expo prototype should be treated as an asset, not replaced. I would first get the current repository building cleanly, map unfinished screens/workflows, then connect the existing UI to a production backend in controlled stages. I recommend Supabase for Auth, PostgreSQL, Storage and role-based data access. Driver activation, onboarding/training progress, assessments, profiles and admin actions would use database-level access controls rather than relying only on frontend permissions. Expo notifications can handle driver updates/reminders. I’m experienced with cross-platform mobile apps, backend/API integrations, authentication, production deployment and application handover. I will personally lead and complete the implementation rather than outsourcing it. All source, Supabase resources, repository, build configuration and deployment accounts will remain under your company’s ownership and control. I can start immediately after award.
£950 GBP in 16 days
6.3
6.3

Hello, I have strong experience with Linux, Apache, IIS, MySQL, SSL, DNS, server migrations, and production troubleshooting. I can migrate your complete website and database to Windows IIS, configure bindings, rewrite rules, MIME types, permissions, SSL, connection settings, and verify all functionality with minimal downtime. I can use RoboCopy, Web Deploy, and MySQL Workbench where appropriate, then coordinate the DNS cutover and monitor the production environment for the first 24 hours. I can start immediately and would be happy to review the current Apache configuration and Windows IIS environment.
£500 GBP in 7 days
6.4
6.4

Your main requirement is not a rebuild, it’s getting an already-designed Expo app over the line into a real working product without losing the existing UI. That usually comes down to three things: cleaning inherited code properly, designing the backend/data model around the actual onboarding journey, and making sure progress tracking, documents, support requests, and admin updates all behave reliably under real usage. I’d keep the current interface intact, tighten the codebase, and build the backend around the workflows you already have rather than forcing a generic structure onto it. I’ve handled React Native projects where the front end existed but the hard part was turning it into a production-ready app with authentication, storage, status logic, content delivery, and deployment support. I’m comfortable with Supabase and Firebase-style backends, and with Android release preparation, signing, testing, and Play Store submission support. A few details would help pin this down before award: - Are push notifications required, or would in-app updates/messages cover this phase? - Will training videos/documents be uploaded by your internal team regularly after launch? - Is there already a Git repo and Play Console account set up under your company ownership?
£500 GBP in 7 days
6.2
6.2

Hi, This is exactly the kind of project where inheriting the existing codebase properly matters more than rebuilding everything from scratch. My approach would be: Review and tidy the current React Native / Expo codebase Preserve the existing UI/UX and branding Map the current screens and flows to the backend requirements Set up a production-ready backend, preferably Supabase for auth, database, storage and role-based access Connect registration, login, driver activation, onboarding, training, assessments, support and profile flows Add progress/completion tracking and live data Build the required admin functionality for users, training content and statuses Configure document/content storage and notifications Test thoroughly on Android, fix production issues and prepare the final release build Assist with Google Play deployment and provide full documentation/handover I would first audit the existing repository and confirm what is already complete versus what still needs implementation, then work through the project in clear milestones so each stage can be reviewed before moving forward. Fixed price estimate: £1,000 Estimated timeframe: 3–4 weeks All source code, backend, database, repository access, deployment accounts and documentation will remain fully under your company’s ownership and control. I can work within the existing React Native / Expo structure rather than replacing it with a generic template. Thanks, Yasir
£1,000 GBP in 20 days
6.4
6.4

I am a senior React Native/Expo developer with extensive experience taking existing front-end prototypes and integrating secure Supabase backends, auth, and LMS workflows through to Google Play deployment. For £750 GBP in 10 days, I will personally audit your codebase, wire up live data/video training logic, configure Supabase (Database/Storage/RLS), and handle full IP handover and Play Store release
£750 GBP in 10 days
6.2
6.2

You'll get 50 proposals. Maybe two will actually understand this is a completion job, not a rebuild. I can take over the existing React Native/Expo codebase, review what is already working, then wire the remaining screens and workflows to a secure Supabase backend without unnecessarily changing the approved UI. I can handle authentication, driver activation, training content and progress tracking, assessments, support, notifications, admin functionality, storage and production configuration, followed by full QA and Android release preparation. I’ll keep the code modular, clean up technical debt where it matters, and make sure the company retains ownership of the repo, backend, accounts and documentation throughout. Upon completion, I'd have turned the current prototype into a stable production app while keeping the existing design and avoiding a costly rebuild. Looking forward to discuss further over the chat.
£650 GBP in 3 days
5.9
5.9

I hope this pitch finds you well. My name is Aliza Shaikh, a seasoned Web and App Developer with demonstrated proficiency in React Native/ Expo and backend development. Having reviewed the comprehensive scope of your project, it aligns closely with my skillset honed over several years of professional experience. My approach to this project begins with thoroughly reviewing your existing codebase and bridging any gaps needed to make it production-ready without compromising on the current design - I understand the importance of retaining successful UI/ UX choices. As per your preferences, I'm well-versed with Supabase and Firebase backend solutions that offer cost-effective and scalable options for solidifying your app's performance. Moreover, my software development process not only adheres strictly to schedules but also leaves room for collaboration and adaptability. In addition to having developed a wide range of React Native/ Expo applications, I'm adept at deploying Android apps on Google Play, conferring you sound experience on both fronts. Rest assured, upon successful completion, you'll have absolute ownership of every facet including the code, backend, hosting as outlined in your project description.
£450 GBP in 4 days
6.0
6.0

Hi, I'm Denis, a full-stack developer with experience completing React Native and Expo projects from prototype to production. I understand your need—connecting an existing, well-designed codebase to a real backend without rebuilding from scratch. I've worked on similar internal platforms where the UI was solid but backend infrastructure needed implementation. My focus is respecting existing design while building reliable authentication, data synchronization, progress tracking, and admin workflows. My approach: Review and tidy the codebase without changing the UI. Set up Supabase with proper schema for users, training modules, progress tracking, and assessments. Implement secure authentication and driver activation flows, connect existing screens to live data, build the training progress system, and create the admin panel. Testing and hardening for production would follow, then Android build and Play Store deployment. Key technical consideration: data consistency. With training progress, assessments, and notifications interacting, I'd ensure the backend handles edge cases properly—incomplete submissions, network interruptions, concurrent updates—so drivers don't lose progress and admins see accurate data. I work solo and will personally complete all development. You'll own everything: source code, repository, backend, database, and accounts. Full documentation and handover included. I can start immediately. Let's discuss the details. Thanks, Denis.
£560 GBP in 15 days
5.7
5.7

⭐⭐⭐⭐⭐ Transform Your React Native Prototype into a Production-Ready App ❇️ Hi My Friend, I hope you are doing well. I've reviewed your project requirements and see you are looking for an experienced React Native/Expo developer. Look no further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for mobile applications. I will review the existing code, refine the UI/UX, and build the necessary backend functionalities to make your app fully operational. ➡️ Why Me? I can easily take your existing React Native prototype to a production-ready app as I have 5 years of experience in mobile app development, specializing in React Native, Expo, and backend integration. My expertise includes code review, user authentication, and connecting workflows to live data. I also have a strong grip on database management and deployment processes. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. I look forward to discussing this with you in our chat. ➡️ Skills & Experience: ✅ React Native ✅ Expo ✅ UI/UX Design ✅ Backend Development ✅ User Authentication ✅ Database Management ✅ API Integration ✅ Mobile App Deployment ✅ Testing & Debugging ✅ GitHub Management ✅ Documentation ✅ User Support Functionality Waiting for your response! Best Regards, Zohaib
£560 GBP in 2 days
6.0
6.0

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