Comprehensive Flutter Developer & UI/UX Designer

@webbookstudio

Hi there, We understand you're building an MVP for an on-demand service marketplace app, requiring a versatile freelancer with expertise in both Flutter development and web/UI design to create a seamless user experience across iOS, Android, and Web platforms. With our strong background in Flutter and UI/UX design, having completed projects like a music voting mobile app using React Native and a furniture store mobile shopping app with Flutter, we're confident in our ability to deliver high-quality, responsive UI and functional screens. Our experience with Figma and design asset creation will also be beneficial in refining the visual design system for your app. Can you share more about your expected timeline for the initial engagement and how you envision our collaboration on API integration with Supabase and third-party services? Feel free to message us to discuss the details! — Webbook Studio

@diektech

Hi — Elias here from Miami. I see you’re looking to develop a marketplace app using Flutter. The goal is to create an engaging and efficient platform that can scale as user demand grows. A common issue in projects like this is ensuring smooth integration between the frontend and backend, especially with payment gateways and user roles. The tricky part is usually maintaining a seamless user experience while managing complex workflows and data states. My approach would involve establishing a robust architecture that emphasizes maintainability and scalability from the start. I focus on creating a clean separation between the UI and business logic, utilizing Firebase for reliable backend services. This ensures that future features won't compromise the system's stability. I've worked on similar projects where I implemented Flutter for mobile interfaces and handled complex integrations, emphasizing the importance of planning for future requirements without complicating the initial build. A few questions to better understand the scope: Q1 – What specific user roles do you envision for the app? Q2 – Are there any particular payment gateways you prefer to integrate? Q3 – How do you see the app evolving in the next 6-12 months? Happy to go through the details and suggest the best technical approach. Looking forward to hearing from you.

@technosystem

As one of the top-rated Flutter Developers and UI/UX Designers on this platform, I'm confident in my ability to provide the skill set and range of experience your project requires. Having designed and developed an array of mobile and web applications including social platforms, games, marketplaces, and blockchain systems, I bring a wealth of knowledge to the table for your on-demand service marketplace app. With regards to both front-end development and design, my approach is focused on efficiency—building polished screens on the go without needing a separate design handoff for every component. My understanding not only lies in building responsive UI with Flutter but also extends to designing and refining visual systems from typography to color selection that exudes cleanliness, modernity, and trustworthiness as you envision. I also stand out in backend-as-a-service integration with platforms such as Google Firebase which shares a similar pattern with your desired Supabase integration. My previous work in marketplace-style applications and mastery of various payment-processing SDKs, including Stripe, makes me well-equipped for ensuring smooth API integration throughout your platform while meeting all the dependencies.

@shubhamshrimal7

Hello, Greetings Hope you are doing well. I am a Mobile Application developer with over 5 years of experience. I am confident in my ability and skills to develop high-quality Mobile apps and would like to work on your on demand service marketplace project. I will complete the work as per your requirements. I want to discuss more this project to prepare the final concept. So let’s discuss this in detail over chat then will make plans to start work on it. Waiting for your earliest reply. Thanks. Shubham

@n2rtechnologies

Hi, I've built multi-role marketplace apps before — this three-user ecosystem (customers, providers, delivery) is exactly the kind of coordination layer I work on regularly. I noticed you need someone fluid between Flutter development and UI design without constant handoffs. That's my wheelhouse — I move fast between building functional screens and refining the visual system. I have delivered 1500+ web and mobile projects over 14+ years — happy to share relevant examples. Let's talk through the scope once the NDA is in place. Regards, Nurul Hasan

@starttechno

Your MVP needs a unified Flutter codebase for iOS, Android, and Web while still giving each of the three user types a clear, role-appropriate booking, tracking, and payment experience. I can work under a mutual NDA before reviewing confidential workflows, patent-sensitive specifications, or repository access. My approach would start by turning the wireframes and written requirements into a compact Figma-led design system: responsive layouts, typography, color tokens, spacing, states, and reusable components. In Flutter, I would structure the app around shared domain models and role-based navigation/permissions so customer, provider, and delivery views remain maintainable without duplicating screens. I would integrate Supabase for authentication, Postgres-backed data, realtime status updates, and API access, then connect maps, push notifications, and a payment SDK such as Stripe through secure backend-controlled flows. I have 10+ years in web/mobile delivery, including Flutter, responsive UI work, REST APIs, payment gateways, and Firebase/Supabase-style backend integrations. Relevant mobile and UI samples can be shared through Freelancer, and I am available to begin promptly after NDA completion. For the beta, should realtime tracking be needed for all three user roles, or primarily for the customer-facing experience? Muhammad Saad

@Infineosoft

Hello, I’m reaching out on behalf of Infineosoft, a Texas-based web and software development agency. We can provide a versatile Flutter developer/UI/UX specialist who can take your product from wireframes and concepts to polished, production-ready experiences across iOS, Android, and Web using a shared Flutter codebase. We understand the importance of confidentiality and are fully comfortable signing a mutual NDA before reviewing any confidential specifications, mockups, or repository access. We can collaborate closely with your founder and backend engineer and adapt quickly based on user-testing feedback throughout the 2–3 month MVP phase. As a Texas-based agency, we can also provide reliable communication and professional collaboration aligned with US time zones. We look forward to discussing the project after the NDA is in place. Price and time is placeholder. Best Infineosoft

@Mahihassi

With over two years of dedicated experience in developing for Flutter and honing my UI/UX skills, particularly within the realm of mobile and responsive web design, I am fully equipped to tackle your comprehensive project. Notably, I'm adept at producing a seamless and polished user experience without the need for a separate design handoff - a skill that will greatly expedite the process for your multi-featured app. Furthermore, I have profound familiarity with role-based access patterns which perfectly aligns with your requirement! My approach to development is influenced by an embedded systems background which has instilled in me the virtue of well-roundedness. Similar to how I deal with hardware, firmware, cloud systems and mobile applications comprehensively, I can provide you end-to-end solutions right from building responsive UI to integrating backend-as-a-service platforms seamlessly. Moreover, my proficiency with APIs (REST/real-time), Supabase, Firebase or similar platforms will ensure smooth integration of services like payments and notifications right into your application while my experience with Stripe SDK would be a cherry on top!

@vladang

Your Flutter MVP will live or die on keeping three user roles in one codebase without the UI drifting apart. I've built products where the UI and implementation move together instead of waiting on separate design handoffs. My approach is to establish the shared design system first, then build reusable Flutter components, and wire each role's experience onto the same foundation. With Supabase, one thing I pay close attention to is keeping role-based permissions aligned with the frontend so access rules don't become a source of hard-to-track bugs later. The NDA-first process makes sense for an early-stage product, and I'm comfortable working that way. Could you share your current design state after the NDA—Figma, wireframes, or just written specs? That will tell me the best place to start.

@TayyabNawaz1

As a comprehensive Flutter Developer and UI/UX Designer, I've honed my skills over 2+ years on the technical side, with apps I've built being shipped to both the App Store and Google Play. Furthermore, I have a strong knack for design, evident in my portfolio that showcases both mobile and responsive web work that will be crucial in collaborating effectively. Additionally, I have past experience with backend-as-a-service platforms like Firebase and Supabase via REST/realtime APIs, similar to what this project may require. My expertise in integrating sophisticated third-party services – like payments, maps, and notifications – will complement your existing backend engineer's efforts smoothly. Comfortable with async collaboration and a fast-moving environment, whether part-time or full-time, I'm ready to merge seamlessly into your team. Finally, confidentiality is paramount for me as well. With your NDA protocol, you can trust that your innovative ideas won't leak out and privacy will be maintained. In conclusion, if you are seeking an experienced Flutter developer who can double up as a skilled UI/UX designer attuned to your specific project needs, let me bring my full focus to your unique vision - and we can bootstrap the success of your platform together.

@HamparProd

Hi, Your project aligns well with my experience building Flutter applications backed by scalable cloud services and polished UI/UX for early-stage products. I can help take your marketplace MVP from wireframes to a production-ready application with a single Flutter codebase for iOS, Android, and Web. My focus is on creating a clean design system, responsive interfaces, role-based user experiences, seamless Supabase integration, real-time updates, payments, notifications, and maintainable architecture that can grow beyond the MVP. I enjoy working closely with founders in fast-moving environments, refining features through rapid iteration while keeping the codebase clean and easy to extend. I'm comfortable signing an NDA before reviewing the detailed specifications and can integrate smoothly with your existing backend and development workflow. I'm available to start immediately and am interested in continuing beyond the MVP as the platform evolves.

@ZohaibRoy

⭐⭐⭐⭐⭐ Flutter Developer & UI/UX Designer for Your Marketplace App ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project details and see you're looking for a Flutter Developer and UI/UX Designer. You don't need to look any further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for marketplace apps. I will create responsive, high-quality user interfaces for both mobile and web platforms, ensuring a seamless experience for all users. ➡️ Why Me? I can easily handle your project as I have over 2 years of experience in Flutter development and UI/UX design. My skills include building responsive interfaces, API integration, and creating user-friendly designs. I also have a strong grip on Figma and backend services like Supabase, which ensures a smooth development process. ➡️ Let's have a quick chat to discuss your project in detail and let me show you examples of my previous work. I'm looking forward to hearing from you! ➡️ Skills & Experience: ✅ Flutter Development ✅ UI/UX Design ✅ Responsive Web Design ✅ API Integration ✅ Figma Design ✅ User Testing ✅ Mobile App Development ✅ Backend Integration ✅ Role-Based Access ✅ Component Libraries ✅ Visual Design Systems ✅ Cross-Platform Development Waiting for your response! Best Regards, Zohaib

@kishanbwts

I’ve worked on similar multi-role service marketplace apps that required one shared Flutter codebase for iOS, Android, and web. In one project, I built role-specific views and booking flows while collaborating closely with backend and design teams, integrating Firebase for auth and realtime updates. This helped launch the app’s MVP quickly and smoothly handle user testing iterations. For your project, I can translate your wireframes into clean, responsive Flutter screens while refining your design system for a modern, trustworthy look across all platforms. I’m familiar with integrating Supabase APIs alongside payment and map services, ensuring seamless data flow and user experience. Quick question: Do you have a preference for managing complex role-based access logic on the client side, backend, or a mix of both? Also, how do you plan to handle real-time updates for tracking—push notifications or websocket-based streams? I’m available to start immediately, ready to sign the NDA, and can deliver a polished MVP that adapts fast from user feedback. Let’s get this moving.

@MusouDigital

Hi there, we have recently completed a similar project and would love to share some references. Your early-stage marketplace app sounds right up our alley and we would love to exceed your expectations. I understand the need for a clean, polished, and user-friendly interface that seamlessly integrates various user types. Our experience in building responsive Flutter applications and crafting modern UI/UX designs aligns perfectly with your vision. We have multiple 5-star reviews on similar projects and rank in the top 1% among 75 million users! While we might be new to Freelancer, we have over 9 years of experience off-site and I truly appreciate you taking your time to review our proposal. I would love to discuss this project more. Kind regards, Trichelle

@FizzaNadeemK

Hi, I’ve worked on mobile and web applications with similar goals, where the challenge was creating a smooth multi-user experience while balancing polished UI with scalable functionality. I understand that marketplace MVPs require careful planning around different user roles, booking flows, payments, and real-time updates. My approach would be to build a clean Flutter application with a shared codebase for iOS, Android, and Web, supported by a consistent design system and responsive UI. I can translate wireframes into production-ready screens, implement role-based experiences, and integrate backend services like Supabase, APIs, payments, maps, and notifications. I’ll focus on creating a maintainable MVP structure, reusable components, smooth user flows, and fast iteration during beta testing. I can share relevant Flutter/UI work, discuss NDA requirements, availability, and rate expectations. Best Regards, fizza

@AndrewJSMAN

I've shipped two Flutter marketplaces with Supabase backends, including Stripe payments and role-based access for three user types. So this is right in my wheelhouse. I'll set up a shared Flutter codebase with responsive web support, build the design system in Figma first, then implement role-based views with Supabase realtime updates. Payment flows will use Stripe SDK with proper error handling for failed transactions. I'll validate sync between mobile and web states during beta testing. I can start immediately. Thanks, Andrii

@XRProConnect

Hi, Aashiq (Ash) here from Cape Town, South Africa. This project instantly caught my eye, so I had to reach out. I see you are looking for a versatile freelancer who can seamlessly blend Flutter development and UI/UX design for an exciting new on-demand service marketplace app. The challenge of connecting customers, service providers, and delivery personnel through a single platform sounds thrilling! With over two years of professional Flutter experience, I have successfully launched apps on both the App Store and Google Play. My background includes creating polished, user-friendly interfaces and integrating backend services like Supabase. I’m confident I can help bring your vision to life and would love to share samples of my work. Based on what you mentioned, here is how we would approach the project: - Collaborate closely during the design and development phases. - Build responsive UIs for iOS, Android, and Web from a shared codebase. - Implement role-based views for different user types. - Iterate quickly based on user-testing feedback. You can rest assured that I prioritize clear communication to deliver a seamless, user-focused solution optimized for performance. Best Regards, Aashiq

@nowars

Hello, Your goal is to deliver a polished marketplace MVP that combines intuitive design with a scalable Flutter architecture for multiple user roles and future growth. The greatest challenge is maintaining a consistent experience across customer, provider, and delivery workflows while integrating payments, maps, notifications, and Supabase securely. Your MVP can be built with a modular design system and reusable Flutter components that support rapid iteration throughout beta testing. You can receive production ready UI, well structured code, and documented implementation that simplifies future enhancements after the MVP launch. Which core user journey is your highest priority for the initial MVP release? I look forward to discussing the project after the NDA process.

@melopgabriel

Hi, your MVP needs one person who can move between Flutter development and UI/UX without slowing the build. The three-user flow, shared booking experience, and responsive web/mobile delivery are a strong fit for me. I’ve built Flutter apps that ship on mobile and web, and I’m comfortable shaping the interface as I build it. I also work well with Supabase-style backends, API integration, and role-based screens, which matters for a marketplace with multiple user types. My approach is to turn your wireframes and specs into a clean design system first, then build the core flows, integrate the backend, and refine screens quickly as feedback comes in. I focus on clarity, trust, and fast iteration so the MVP feels polished from day one. If the NDA step is next, I’m ready to move forward. Best regards, Gabriel