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Developer Needed – Lean MVP Build for Marketplace Startup (Circulate) Project Overview I’m building a startup called Circulate. Circulate is a local marketplace platform where users trade goods and services using an internal credit wallet system instead of cash. Think: Facebook Marketplace + OfferUp + a credit-based barter marketplace The goal is a lean but functional MVP to prove the concept to users and investors—not a bloated enterprise build. I want to use existing integrations/services wherever practical to keep development time and costs low. ________________________________________ Core Concept Users trade using internal platform credits instead of cash. Rules: • every user starts at 0 credits • users can spend down to a controlled negative balance (example: –100 credits) • users earn credits by selling goods/services • purchases are blocked if the user would exceed the negative threshold • every completed transaction incurs a 6% platform transaction fee • that fee goes into the platform’s internal reserve wallet Example: User buys an item for 25 credits: • buyer balance = –25 • seller receives 23.5 credits • platform reserve receives 1.5 credits (6%) ________________________________________ What I Need Built Core Product A responsive web application (mobile-friendly) where users can: • create accounts • verify email/phone • browse marketplace listings • post items/services • search/filter listings • message buyers/sellers • complete transactions • rate users • manage their internal wallet • view transaction history ________________________________________ Security / Fraud Prevention Required: • email verification AND phone/SMS verification • duplicate account prevention • suspicious activity monitoring • fraud flags • admin fraud review tools • account suspension capability Goal: Prevent: • fake accounts • duplicate users • abuse of negative credit spending • scam behavior ________________________________________ Internal Wallet / Credit System (Core) This is a required core feature. Need: • internal wallet per user • visible credit balance • negative spending limit (can go negative on 1 trade up to -100, can’t trade again til positive, can’t purchase an item for 40 credits, go -40 then purchase again till you get to -100, once you go negative purchasing frozen till go positive) • purchase eligibility logic • automatic wallet debits/credits • admin balance adjustments • transaction ledger • reserve wallet tracking Logic: • user starts at 0 • can spend down to –100 • cannot exceed spending threshold • credits earned through sales • credits deducted through purchases ________________________________________ Platform Transaction Fee Required: Every completed transaction must automatically collect: 6% platform fee Example: 25-credit sale: • seller receives 23.5 • reserve wallet gets 1.5 Need: • automatic fee calculation • reserve wallet accounting • fee tracking/reporting ________________________________________ Marketplace Features Users must be able to: • create listings (QR code for listing to send money to sellers wallet) • edit listings • delete listings • upload photos • title/description • select category • set credit price • browse listings • search • filter • save/favorite listings • report listings Listings should support: • physical products • services ________________________________________ Transaction Flow Keep simple. No escrow. Flow: 1. in-app messaging 2. users arrange exchange 3. buyer transfers credits via QR code, 6% fee collected 4. “item sold” upon transfer of credits 5. wallet balances update 6. buyer transfers credits via QR code 6% fee collected 7. ratings prompted Need: • completed transactions • disputes • admin oversight ________________________________________ Messaging Need: • in-app buyer/seller chat • listing-linked messaging • blocking users • message reporting Use third-party service if practical. ________________________________________ Ratings / Trust Need: • star ratings • written reviews • completed trade count • trust indicators • verified badges ________________________________________ Admin Dashboard Must include: • user management • suspend/freeze users • fraud review • listing moderation • transaction oversight • dispute management • wallet adjustments • reserve wallet monitoring • analytics dashboard ________________________________________ Analytics (Lean MVP) Track: • users • active users • listings • completed transactions • credits traded • reserve wallet growth • disputes • fraud incidents • repeat usage ________________________________________ Technical Preferences Open to recommendations. Prefer existing services where practical. Likely stack: Frontend: • React / [login to view URL] Backend: • Node.js / Supabase / Firebase Database: • PostgreSQL or equivalent Hosting: • Vercel / AWS / cloud Messaging: • Stream / Sendbird / Pusher Analytics: • PostHog Admin: • Retool or custom lightweight admin Storage: • AWS S3 / Cloudflare ________________________________________ Deliverables Need: • working MVP • frontend • backend • database • internal wallet logic • fee logic • admin dashboard • deployment • source code ownership • documentation • bug support after launch ________________________________________ What I Need From You Please include: 1. estimated cost 2. estimated timeline 3. recommended stack 4. similar marketplace experience 5. fraud prevention recommendations 6. lean MVP recommendations 7. hosting/monthly costs 8. maintenance estimate ________________________________________ Important This is NOT a polished enterprise app. Goal: build the leanest secure MVP possible that proves the concept. Use integrations where practical instead of unnecessary custom development.
Project ID: 40438784
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239 freelancers are bidding on average $1,379 USD for this job

With over a decade of experience in full-stack architecture and high-scale systems, I understand the importance of building a lean MVP for your trading platform, Circulate. My background in developing high-security systems and scaling platforms for over 1 million users aligns perfectly with the challenges of creating a secure and efficient marketplace where users trade using internal credits. To ensure the success of your project, I recommend implementing robust security measures such as email and phone verification, along with fraud prevention tools and admin oversight. Leveraging my past success in developing user-centric applications, I am confident in delivering a responsive web application that meets your core requirements while prioritizing security and fraud prevention. I encourage you to reach out to discuss the roadmap for developing Circulate. Let's collaborate to bring your vision to life and create a scalable and secure MVP that proves the concept to users and investors.
$1,200 USD in 20 days
7.7
7.7

⭐️⭐️⭐️ Lean MVP Marketplace with Credit Wallet (Circulate) ⭐️⭐️⭐️ Hello, I checked JD and you want — a lean, secure marketplace MVP where users trade goods/services using an internal credit wallet system (with negative balance logic + platform fee), focused on fast launch and scalability for validation. Main features without detail • User authentication (email + phone verification) • Marketplace listings (products + services) • Search, filter & category browsing • Listing creation/edit/delete with media upload • In-app messaging system • Internal credit wallet with negative balance logic • Transaction flow via QR-based payments • Automatic 6% fee calculation + reserve wallet • Transaction history & ledger system • Ratings, reviews & trust indicators • Fraud detection, flags & account suspension • Admin dashboard (users, listings, disputes, wallets) • Analytics tracking (users, trades, credits, fraud) • Notification system (real-time updates) Let’s chat… Thanks
$900 USD in 12 days
7.8
7.8

Hi, this project presents an interesting challenge in building a lean, secure credit-based marketplace MVP with clear transactional constraints and fraud prevention needs. The primary engineering risk lies in orchestrating consistent wallet state updates and fraud detection without impacting user experience or system reliability. I usually design systems with clear separation between transaction processing, user state management, and admin oversight to ensure data integrity and maintainability. My experience from Custom Feature Development & Integration shows my capability to quickly understand existing systems and deliver targeted backend and frontend enhancements. Additionally, my work on the NYSE Day Trading Bot Development involved precise transaction logic and API integration under strict financial constraints. For architecture, I recommend separating wallet transaction processing from marketplace listing and messaging layers to isolate critical financial logic and simplify auditing. This approach allows for easier fraud flagging and admin control without mixing concerns. While this project does not involve LLMs, I emphasize robust evaluation and monitoring of transaction flows to catch anomalies early, ensuring platform trustworthiness. I can start by outlining the wallet transaction pipeline, mapping the credit flow and fee deductions, and reviewing fraud detection signals for effective admin review. Thanks, Hercules
$1,500 USD in 7 days
7.0
7.0

Hi there, We’ve built several MVPs for startups, including a marketplace where users can buy and sell services using internal credits. We understand the importance of launching a lean, functional product that proves the concept without unnecessary features. For your project, we can leverage our expertise in both front-end and back-end development, as well as server management, to deliver a fully integrated solution. We also have experience with third-party integrations like Stripe and PayPal, which can be valuable for your internal wallet system. Let’s schedule a 10-minute call to discuss your project in more detail and see if I’m the right fit for your needs. I’m eager to learn more about your exciting venture. Best, Adil
$825 USD in 21 days
6.6
6.6

Hello, As a seasoned Frontend Developer, my team and I at Our Software understand the importance of building a lean and functional MVP, perfectly aligned with your vision for Circulate. We are not just tech-savvy, we are solution-oriented problem solvers. Our goal is to not only implement your core concepts around credit-based trading transactions but to also provide you with a secure platform that mitigates risks associated with fraud and scams, preventing fake accounts and duplicate users through robust email and phone verification processes. With regards to handling the internal wallet/credit system as crucial as this in your project, we have had years of experience creating similar logic-driven systems. We can ensure balances adjust automatically according to transaction debits/credits, manage negative spending limits capped at -100, incorporate resilient purchase eligibility logic and track all transactions on a dedicated ledger. Our teams' extensive experience in developing financial-intensive systems further assures our capability in integrating the platform transaction fees seamlessly at 6%, accurately calculating them from each completed transaction while efficiently managing reserve wallet accounting to keep track of revenue streams. Additionally, since security is paramount in any online marketplace, we won't take any chances. We'd be vigilant in preventing duplicate accounts and suspicious activities by incorporating st Thanks!
$850 USD in 6 days
6.5
6.5

Hello, I can help build a lean MVP for your marketplace startup, Circulate. This platform's unique internal credit wallet system will allow users to trade efficiently, adhering to the outlined features like user registration, transaction flow, and a comprehensive admin dashboard. I have experience in developing similar online platforms and can recommend optimal integrations to keep development efficient and cost-effective. Thanks, Teo
$1,250 USD in 5 days
6.0
6.0

Hi, Building a trading marketplace MVP means nailing the core flows fast—user auth, listings, transactions, dispute handling. What's your timeline looking like, and are you handling payments through Stripe or a custom solution? Let's talk details. Best Regards, Hasan
$750 USD in 28 days
6.0
6.0

With experience in developing lean MVPs for startups, I understand the need for a functional yet cost-effective solution for Circulate. My past work includes creating similar credit-based systems for marketplace platforms. How can we ensure a seamless user experience while implementing the controlled negative balance feature? Regards, Yogesh Kumar
$1,170 USD in 7 days
5.9
5.9

Hello! As per your project post, you’re looking to build an MVP for “Circulate,” a credit based local marketplace platform where users trade goods and services using an internal wallet system instead of cash. The goal is to validate your barter style marketplace concept with a secure, scalable, and investor ready MVP that includes listings, messaging, transactions, wallet logic, and admin controls. My focus will be on delivering a complete MVP featuring: user authentication with phone and email verification, marketplace listings with search and filters, in app chat, internal credit wallet with balance rules and transaction fee automation, listing based QR or transfer flow, ratings and trust system, fraud prevention tools, and a lightweight admin dashboard for monitoring users, transactions, disputes, and analytics. The system will be built with a clean modular architecture so wallet, messaging, and marketplace components can scale independently. I specialize in building marketplace and fintech style MVPs with experience in credit based systems, wallet accounting logic, real time messaging integrations, scalable backend architecture, and admin driven operational platforms designed for rapid product validation. Let’s connect to review your transaction flow rules, wallet constraints, and preferred tech stack so we can define a clean and buildable MVP roadmap for Circulate. Best regards, Nikita Gupta.
$1,000 USD in 45 days
5.8
5.8

Hello!, I am a Florida-based senior software engineer with over 15 years of experience in building scalable software solutions. I’ve read your project description carefully, and I’m excited about the opportunity to help develop the MVP for your trading platform, Circulate. I have extensive skills in Node.js, PostgreSQL, and web development, which align perfectly with your project needs. I understand the importance of creating a lean MVP that not only meets user requirements but also positions you for future growth. To ensure the best outcome, I propose an initial phase focusing on core functionalities, followed by user feedback integration to refine the platform. Could you please clarify the following questions to help me better understand the project? 1. What specific features are you considering essential for the MVP launch? 2. Do you have any preferences regarding the payment processing solutions? 3. What is your target timeline for launching the MVP? I’ve successfully built similar platforms, including a financial trading system and a marketplace for unique products. My experience in AI and automation can also enhance your project. Let’s connect to discuss your vision further and make Circulate a success. Best, -James
$1,200 USD in 6 days
5.4
5.4

⭐⭐⭐⭐⭐ Build a Lean MVP for Your Marketplace Startup, Circulate ❇️ Hi My Friend, I hope you are doing well. I reviewed your project details and see you are looking for a developer to build a lean MVP for Circulate. Look no further; Zohaib is here to help you! My team has successfully completed over 50 similar projects for marketplace platforms. I will create a responsive web application that allows users to trade goods and services using an internal credit wallet system. I will utilize existing services to keep costs low and ensure a smooth development process. This approach will help build a functional MVP to attract users and investors while staying within budget. ➡️ Why Me? I can easily build your marketplace MVP as I have 5 years of experience in web development and marketplace solutions. My expertise includes React, Node.js, and user authentication. I also have a strong grip on database management and payment integration. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. Looking forward to discussing this with you in chat. ➡️ Skills & Experience: ✅ React ✅ Node.js ✅ PostgreSQL ✅ Firebase ✅ User Authentication ✅ API Integration ✅ Responsive Design ✅ Payment Systems ✅ Security Protocols ✅ Fraud Prevention ✅ In-app Messaging ✅ Admin Dashboards Waiting for your response! Best Regards, Zohaib
$900 USD in 2 days
5.8
5.8

As a dedicated full-stack developer with extensive experience in PHP, Node.js, and C#, your Circulate project lines up perfectly with my skill set. My speciality is in building reliable and scalable web applications, which is exactly what you need for your MVP. I understand the importance of keeping costs low without compromising on functionality, so I'll maximize the use of existing integrations/services to achieve that goal. One critical feature of the platform you envision revolves around a secure and comprehensive internal wallet/credit system. My knowledge in payment processing and my meticulous approach towards fraud prevention make me an ideal candidate for this task. During development, I'll ensure users can transact within your proposed credit limits, manage their balances effectively, seamlessly debit/credit the platform fee, and maintain accurate transaction records. Additionally, efficient communication is crucial to any successful marketplace. I'll employ a third-party service wherever applicable to bolster in-app buyer/seller chat functionality while allowing streamlined messaging linked directly to listings. With my focus on creating intuitive front-end interfaces using Vue.js, users can expect a clean, mobile-friendly design facilitating easy navigation through categories and offers. Let's discuss how we can bring this game-changing local marketplace to life!
$1,120 USD in 7 days
4.9
4.9

As a seasoned full-stack developer with over a decade of experience, I can confidently say that your project aligns perfectly with my skill set. I've specialized in precisely the areas your trading platform, Circulate, relies on: Node.js, PostgreSQL, and Web Development. Over the years, I've successfully handled similar projects involving highly complex credit systems and transaction flows. My forte lies in maximizing functionality while minimizing bloat; in other words, exactly what you're looking for in a lean MVP. Fraud prevention and security lie at the very core of any transactional system – Circulate being no exception. Throughout my career, assuring robust security measures have been an indispensable part of my projects. I’m well-versed in employing multiple verification mechanisms as well as implementing firm measures to curb suspicious activities and discourage fraudulent behavior across the platform. From fake accounts to duplicate users or abuse of negative credit spending – you can rest assured knowing your platform is fortified against such potential threats. In conclusion, by choosing me for this project, you’re not just gaining access to technical expertise but also a dedicated partner committed to seeing your startup succeed. I offer clean code merged with clear communication resulting in on-time delivery - every single time. Moreover, my support extends beyond project completion; I'm here for any future troubleshooting or enhancement requirements as well.
$800 USD in 12 days
5.1
5.1

⚠️ If you're not happy, you don’t pay. ⚠️ Hi there, Thank you for providing a detailed project brief for Circulate, a unique marketplace platform. I can build your lean MVP using React/Node.js with robust security features. I will deliver: • User-friendly web app with internal credit wallet system • Security measures like email/phone verification and fraud prevention • Internal wallet & credit system with spending limits • Transaction fee automation & reserve wallet tracking • Marketplace features & simple transaction flow • In-app messaging, ratings, and trust indicators • Admin dashboard & analytics for lean MVP You will also receive documentation and post-launch bug support. I am confident I can execute your vision efficiently. Looking forward to discussing further. Best regards, Chirag.
$1,150 USD in 7 days
4.6
4.6

Hi, I will create a lean MVP for your marketplace startup, Circulate, where users trade goods and services using an internal credit wallet system. The goal is to prove the concept to users and investors with a functional platform that keeps development costs low. You will receive a responsive web application where users can create accounts, browse listings, complete transactions, and manage their internal wallet effortlessly. I will prioritize security measures to prevent fraud and ensure a seamless user experience. How do you envision the user onboarding process to maximize engagement and trust within the platform? Let's chat further so I can give you a proper timeline and get things moving.
$750 USD in 5 days
4.6
4.6

As a full stack developer with an extensive background in various facets of technology, I am uniquely positioned to bring your vision for Circulate to life. Not only have I created several fantastic web applications in the past, but I also have significant experience in trading systems-algorithmic software development and deployment. This ensures that not only would I be able to streamline the MVP build process for you by leveraging existing integrations where possible, but I'd also be invaluable in guaranteeing the security and integrity necessary to prevent potential fraudulent activities within Circulate. Skills like automations and balance adjustments would be of tremendous benefit to your internal wallet/credit system. Additionally, my AI skillset is perfect for providing a safe, fraud-free environment within Circulate as it involves substantial knowledge of identifying scam behaviors and suspicious activities. Lastly, beyond my technical skills, my ability to adapt seamlessly to new project requirements and deduced problem-solving approach will ensure we stay within scope and deliver your project on-time. As someone who strongly believes in clean, maintainable code and adhering to best practices— coupled with my demostrated commitment to delivering projects without compromising their core functionalities, you can trust me to create a functional yet lean MVP specifically tailored for your target users and investors. Let's chat more!
$1,125 USD in 7 days
4.5
4.5

As an experienced full-stack developer with over a decade in the field, I'm confident that I can turn your vision for Circulate into a reality. My expertise spans an array of technologies such as Node.js and PostgreSQL, which are highly relevant for implementing the core features you need, particularly in creating user accounts, managing transactions and security protocols. Moreover, I've worked on numerous e-commerce platforms involving credit systems that align with your internal wallet/credit system requirements for Circulate. From automatic wallet debits/credits to reserve wallet tracking to transaction ledger balancing, everything will be efficiently implemented leaving no room for errors. Rest assured, with me on board as your developer, I'll deliver a scalable and secure product that impresses both users and investors alike!
$1,099 USD in 25 days
4.6
4.6

Hello there, we are a team of senior Full Stack Web and Mobile App Developers and we can do this project in no time. Thanks Ashish Kumar.
$1,600 USD in 25 days
4.8
4.8

With my extensive background as a full-stack developer, I'm ready to bring your project, Circulate, to life. With an emphasis on efficiency and reliability, I have proven skills in Node.js, PostgreSQL, and Web Development – crucial for creating a responsive web-based application for your trading platform. My 8 years of experience have primarily revolved around developing end-to-end solutions matching the scale and security requirements we need here. Your vision for an efficient yet comprehensive marketplace aligns perfectly with my skillset. I intend to build not just an MVP but a lean yet functional MVP that proves the concept to users and investors. Rather than opting for costly new integrations, I plan on cleverly utilizing existing integrations/services available to create even more value with limited resources – further underscoring my suitability for this project. In addition to my technical acumen, I emphasize user interaction and fraud prevention in my development process; two key elements of what you seek in your marketplace. My familiarity with security protocols such as email/phone verification, duplicate account prevention and building fraud detection tools will prove invaluable. Combining these abilities with your detailed specification on the credit system, transactional flow, marketplace features, internal wallet management & reserve wallet accounting would make us an ideal match as a team.
$800 USD in 7 days
4.4
4.4

Hello, Circulate is a very interesting concept and a strong fit for my experience with marketplace platforms, wallet systems, transaction logic, admin dashboards, messaging systems, and scalable web applications. i have worked on projects involving internal balances, payment style workflows, fraud monitoring, user management, QR based actions, and marketplace operations, so i understand the level of planning needed to keep the MVP secure and practical while moving quickly. i can help organize the project into lean development phases using reliable services where appropriate to reduce cost and speed up launch. i would love to schedule a short discussion meeting to review the wallet rules, fraud prevention flow, transaction process, and the fastest path toward a functional MVP for investors and early users. I will share my portfolio in chat I look forward to hear from you. Thanks Best Regards, Mughira
$1,125 USD in 7 days
4.1
4.1

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