Flutter/Go Developer for Pre-Launch Marketplace App

@sunainawbst

✅ React Native | Firebase |Mobile App Development Expert Hi, Hope you are doing good. I have read your requirements carefully and can give you 100% assistance as a React Native Developer for building or enhancing your mobile application. I specialize in creating fast, stable, and scalable apps for both iOS & Android, backed by a secure and efficient Firebase architecture. I’d love the opportunity to discuss your idea further and collaborate on developing a modern, intuitive, and impactful app. (Note: Please consider the current budget as flexible — we can finalize it after discussing the complete scope.) Thanks & Regards, Kajal

@ambientinfotech

Hi, I can help you build a high-quality Flutter mobile application with clean UI/UX, fast performance, and scalable architecture. I have strong experience in Flutter app development, API integration, Firebase, custom backend systems, ERP/CRM integration, and eCommerce/mobile solutions. ✅ Cross-platform Android & iOS apps ✅ Clean and responsive UI/UX ✅ API & payment gateway integration ✅ Admin panel & backend support ✅ Fast communication & on-time delivery ✅ Long-term maintenance support I focus on delivering stable, user-friendly, and production-ready applications with complete client satisfaction. Let’s connect and discuss your project requirements in detail. Thanks,

@lokeshsaurav

Hi, I have 8+ years of software development experience with strong expertise in Flutter, backend integrations, payment systems, and mobile app maintenance. I’m comfortable working with existing codebases, debugging issues, improving features, and providing ongoing technical support. I have experience with Flutter, Go/Laravel backends, Stripe integrations, Kotlin, and marketplace-style applications. I'm available for regular communication and can support urgent fixes when needed. I’m comfortable discussing the proposed budget and would be happy to learn more about the project.

@Srashtasoft

I have experience working with Flutter applications, Go backends, Supabase, and Stripe-based payment systems, and I can help maintain, debug, and enhance your marketplace platform as you move toward launch. I am comfortable reviewing and working within an existing codebase, resolving bugs, improving features, supporting client checkout flows, and assisting with Stripe Connect integrations, including connected accounts, onboarding, PaymentIntent workflows, platform fees, commissions, and payment status handling. I can also contribute to Android-specific functionality, web checkout components, and backend/database logic when needed. I understand the challenges of early-stage startup products and value clear communication, quick response times, and reliable day-to-day support. I am comfortable with ongoing collaboration, regular updates, and urgent troubleshooting when required. The opportunity to support and grow with a pre-launch marketplace platform is particularly appealing, and I would be happy to discuss availability and long-term collaboration.

@mahig47

A good approach is: 1. Write a natural cover letter. 2. Ask 3 to 4 business focused questions, not technical questions. 3. Questions should make the client think you've understood the product and are already considering its success. Template: Hello! I had a look at your project and it sounds like you're building something that needs to balance functionality, user experience, and long term scalability. The features you've outlined show that you're thinking beyond a simple MVP and focusing on creating a product that users can rely on daily. My approach is always to first understand how the platform is expected to operate from the user's perspective and then build the technical foundation around those goals. This helps ensure the final product remains intuitive, scalable, and easier to maintain as new features are introduced over time. I've worked on web applications, mobile apps, SaaS platforms, marketplaces, business systems, and API driven solutions, and I enjoy collaborating closely with clients to turn requirements into a polished product that is ready for real world use. I'd be happy to learn more about your vision and discuss the best way to move forward. Best regards, Nikita Gupta.

@technologiesit

With 10+ years of experience under my belt, I'm confident that I can be the devoted technical support person your app needs. My proficiency with Flutter, Go, Supabase, and Stripe Connect align precisely with the requirements of your project. Throughout my career, I've dealt with marketplace payment flows extensively, including KYC/onboarding flows, platform fees/commissions and split payment logic similar to what you require from this role. I also have hands-on experience with Kotlin, which would prove valuable for your Android floating widget feature. Importantly, I'm no stranger to an early-stage startup's technical demands. Preserving quality while working with budget constraints is core to my work ethos. Furthermore, my excellent interpersonal and communication skills ensure that we stay aligned in our objectives and that you remain well-informed of progress and timelines. As a culmination of these skills, I bring to the table an unmatched level of dedication towards ensuring smooth project maintenance, diligent bug-fixing when necessary and improvement of existing features for a superior product experience. Let me bring my expertise onboard and turn your pre-launch marketplace app into a widely successful reality!

@ciss26

Hello, I hope you are doing well. I understand that you are looking for a FLUTTER DEVELOPER NEEDED FOR ONGOING MARKETPLACE APP SUPPORT and I would be happy to help. I have extensive experience in designing and developing applications and have successfully delivered many projects. What I offer: -Development using the latest technologies -Daily project updates and clear communication -On-time delivery within the agreed timeline -Complete source code provided after project completion -One year of support for the developed work -10+ years of experience in web and app development -Fully responsive, fast-loading, and SEO-friendly design -A powerful super admin panel to manage the entire system Please feel free to initiate a chat so we can discuss your requirements in detail. Thank you and regards, Dheeraj K.

@mubeenm5026

With my decade-long experience in web, software, and mobile application development at Web Crest, I am confident that my team and I are the ideal fit for your marketplace app project. Flutter and Go are two of our core strengths, with past projects developing rich applications using these technologies. Furthermore, our knack for problem-solving in an early-stage product scenario gives us the edge to understand and improve existing functionalities, fix bugs swiftly, and support you rigorously as you near the launch. Marketplace payment flows have always been a significant focus for us, particularly with Stripe Connect or similar systems. Leveraging this experience, we can effectively handle connected accounts, KYC/onboarding flows, checkout logic, payment status handling, split payment logic/fund distribution – all essential aspects of your project. Moreover, my team isn't limited to core technologies alone. We also possess commendable knowledge in backend (Go), database management (Supabase), Android floating widget (Kotlin), HTML/CSS/JavaScript indicating our ability to perform a holistic review of your existing infrastructure. While my direct involvement will help guarantee a fluid communication channel between us throughout our journey and ensure prompt support whenever needed. All these factors combine to make Web Crest your holistic partner for this journey!

@AnumFatima210

Hello, I came across your Flutter/Go Developer for Pre-Launch Marketplace App and I am very interested in working with you. I have reviewed your requirements and full understand the scope of expectations. I specialize in CSS, HTML, and have successfully delivered similar projects before. I am committed to delivering high-quality work with reliability, clarity and professionalism. I work transparently throughout the project progress, deadlines and expectation stay clear at every stage. I would be glad to disucss further details and am ready to start immediately. Looking forward to hearing from you. Regards. Anum

@toriquldev123

Dear Client, Hello dear! I’m Md. Toriqul Islam, and I’m excited to partner with you & I can dive into your project immediately. I’m an experienced full-stack developer with 10+ years of expertise in Flutter, Go, payment integrations, and scalable marketplace applications. I understand you need a dependable developer to maintain, debug, and improve your pre-launch marketplace app, with particular focus on Stripe Connect, marketplace payment flows, checkout processes, and ongoing technical support. I have experience working with Flutter applications, Go backends, Supabase, payment gateways, API integrations, and startup products that require rapid troubleshooting, feature enhancements, and reliable day-to-day technical assistance. I am skilled in Flutter, Go, Supabase, Stripe Connect, Kotlin, HTML, CSS, JavaScript, and API development. I’m comfortable with the proposed budget, available for regular communication, and ready to start immediately. Looking forward to hearing from you. Best regards, Md. Toriqul Islam

@mobiwebsolutions

✋ Hi There!!! ✋ The Goal of the project:- PROVIDE ONGOING DEVELOPMENT SUPPORT AND BUG FIXING FOR FLUTTER GO MARKETPLACE APP WITH STRIPE CONNECT PAYMENT FLOW OPTIMIZATION BEFORE LAUNCH I carefully reviewed your complete requirement and understand you need a reliable developer to maintain your early stage marketplace app, debug issues, improve features, and support Stripe Connect marketplace payment flows including onboarding, commissions, and transaction handling. With 9+ years experience as a full stack developer, I am the best fit because I have strong experience in Flutter, Go backend systems, and payment integration workflows. 1 Flutter app maintenance with bug fixing, feature improvements, and performance stability 2 Go backend and Supabase support including database logic review and optimization 3 Stripe Connect integration support including marketplace payments, onboarding, and transaction flow handling I will provide UI support, database management, testing, API debugging, and full source code delivery. I have completed similar marketplace and payment integration projects. Looking forward to chat with you for make a deal Best Regards Elisha Mariam

@pasion0128

★•══•★ Hi client ★•══•★ My approach will be: ✅ Review the existing Flutter app, Go backend, Supabase schema, and Stripe Connect implementation to understand the current architecture and launch readiness ✅ Handle ongoing bug fixes, checkout issues, payment flow improvements, and feature refinements while maintaining code quality and stability ✅ Support Stripe Connect onboarding, KYC, connected accounts, commissions, PaymentIntent workflows, payout handling, and marketplace fund distribution ✅ Provide reliable daily communication, quick troubleshooting, and proactive technical support as you prepare for launch I have experience with Flutter applications, Go backends, Supabase, Stripe integrations, marketplace platforms, payment workflows, and startup products that require continuous support and rapid iteration. One key question: approximately how many hours of support per week do you expect within the current $100–$150/month budget? Best regards. Rico

@iimtpradeepdash

Hi! The piece about Stripe Connect with KYC, split payments, and fund distribution stands out. Getting marketplace payouts and onboarding right is where most pre-launch products hit snags right before going live. I work hands-on with Flutter and Go, and I've set up marketplace payment logic with KYC and platform fees before. In one client app, I mapped the full flow from seller onboarding to payout status and daily support was a core part of my role. For your project, I'd review the Go backend, patch any gaps in PaymentIntent and status tracking, then test the client checkout end-to-end. I can stay on call for quick fixes and new features as you hit each pre-launch step. What part of your Stripe Connect flow currently causes the most support pain — seller onboarding, payouts, or customer checkout? Happy to send a checklist for launch-readiness and a fast QA plan for your payment flow. You can see other app work at work.techindika.com. — Pradeep

@mayankinnovative

Hello, I reviewed your Flutter/Go Developer for Pre-Launch Marketplace App project and would love to contribute to bringing the platform to launch readiness. My experience includes Flutter, Golang, REST APIs, PostgreSQL, marketplace platforms, payment integrations, authentication systems, real-time features, and scalable backend development. I am comfortable working on both new feature development and stabilizing existing applications before launch. I can help with: • Flutter mobile app development • Golang backend development • REST API development and integration • Authentication and user management • Marketplace workflows • Payment gateway integration • Push notifications • Performance optimization • Bug fixing and testing • Production deployment support My approach: • Review the current codebase and architecture • Identify launch-critical tasks and bottlenecks • Implement features and fixes efficiently • Optimize performance and stability • Test user flows across devices • Prepare the platform for production deployment Technical expertise: • Flutter / Dart • Golang • PostgreSQL / MySQL • REST APIs • Firebase • Docker • AWS / VPS Deployment • Git and CI/CD A few questions: • How far along is the current development? • Is the backend fully built in Go? • What are the key features remaining before launch? • Are you looking for a short-term contributor or a long-term developer? Thanks

@murtuza90

With years of diverse and comprehensive technical experience, I bring to the table exceptional skills in Android (including Kotlin), database development, and - most importantly - extensive knowledge of working with Flutter and Go, making me a reliable choice for your pre-launch marketplace app. Not only that, my extensive expertise in payment processing, particularly in Stripe Connect and handling connected accounts, onboarding flows, marketplace checkout logic, platform fees/commissions, payment status handling, split payment logic or marketplace fund distribution would be invaluable for your existing project. One of my strongest suits is being able to understand existing codebases seamlessly while bringing about the necessary improvements. Your need for someone who can maintain your project efficiently, fixing bugs and enhancing features when required perfectly aligns with my skillset. Rest assured that I will support you diligently as we approach the crucial phase of launching your project. Moreover, given my commitment to eliminating technical debt in every project I work on and my habit of building scalable features right from the start aligns directly with your needs. Lastly, as a seasoned professional who has worked extensively with startups before their launch phase, I understand the importance of maintaining budgets without compromising on performance.

@SkillCrafts

I see you need a skilled Flutter and Go developer with Stripe Connect experience to refine your pre-launch marketplace app. My recent work involved integrating Stripe Connect for a subscription service, successfully handling complex payment flows and user onboarding, mirroring your app's payment requirements. My approach will involve a thorough code review of your existing Flutter and Go codebase to identify critical bugs and areas for optimization. I'll leverage Go's concurrency features for efficient backend operations and Flutter's declarative UI for a smooth user experience. My plan includes targeted debugging, performance enhancements, and ensuring robust Stripe Connect integration, followed by comprehensive testing. To ensure alignment, could you specify the primary Stripe Connect use case you're currently focused on (e.g., direct charges, marketplace payouts)? Also, what is the current state of your testing infrastructure? I'm confident I can provide the technical expertise needed for a successful launch. Let's schedule a brief call to discuss your project in more detail.

@ahsaans

Hello, I understand you’re looking for a developer to maintain and support your pre-launch marketplace app built with Flutter, Go backend, Supabase, and Stripe Connect, including marketplace payment flows, bug fixing, and ongoing improvements. I have experience working with Flutter applications, backend API debugging, and payment integration flows, including Stripe-style PaymentIntent and marketplace logic. I’m comfortable reviewing existing codebases, identifying issues quickly, and improving both frontend and backend stability. I can help you with Stripe Connect workflows such as onboarding, KYC handling, connected accounts, commission logic, and payment status management, along with general maintenance of your Supabase database and Go backend APIs. I am also comfortable supporting frontend checkout flows using HTML/JS and assisting with debugging across the stack. I can be available for daily communication and quick turnaround fixes, especially during your pre-launch phase where stability is critical. I’m okay with starting as a long-term support developer and can adapt to your current budget while focusing on reliability and fast issue resolution. Let’s connect and review the current system so I can understand the architecture and start contributing immediately.

@cindyviorinar

Hi, I’d be glad to help you with your Excel workbook and make sure all sales records are entered accurately and efficiently. I can set up data validation for dates, product codes, quantities, and currency values to catch any errors instantly, and I’ll ensure all totals match your samples for complete accuracy. The sheet will stay clean, easy to update, and ready for future entries. Looking forward to helping you get this done quickly and flawlessly. Thanks,

@mahads31

With significant experience in HTML, JavaScript, and Database Development, I am confident that I would be an exceptional fit for your pre-launch marketplace app's maintenance, debugging, and improvement. My track record speaks for itself - I've aided businesses across industries, just like yours, in transforming complex requirements into scalable, efficient digital systems designed to deliver real value. Crucially, I understand the importance of maintaining an app prior to launch. Apart from my fluency with Flutter and Go, your current stack technologies, I have a deep understanding of Stripe Connect and have worked extensively on connected accounts, KYC/onboarding flows, payment status handling/payment flow in general, split payments/marketplace fund distribution as well as other aspects vital to marketplace payment flows. Moreover, my familiarity with Kotlin for Android floating widget/overlay proficiency along with my ability to further improve your existing features and check-out process should be of great value. My competitive pricing will enable us to build a long-term productive relationship while taking into account your early-stage nature. Let's join forces now to foster growth and drive innovation in your marketplace project!