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I’m kicking off an eight-week sprint to release a beta-ready crypto wallet tailored for merchants. The wallet will launch on Polygon first and later expand to other chains, so the codebase must be modular from day one. Tech foundation • Front end in React (web) and a companion Flutter app • Node.js back end • Fireblocks or BitGo for secure custody and signing • MoonPay for fiat on-ramp • Alchemy for chain data and broadcasting Core scope The MVP must let a merchant create an account, receive funds, and move crypto with full auditability. To keep things sharply defined, the first release will cover: Features required at launch 1. Transaction history (per wallet, per user, exportable as CSV) 2. Multi-currency balances on Polygon (USDC, MATIC, wETH to start) 3. Role-based user management so a store owner can add staff with limited permissions Timeline & milestones Week 1-2 Design final flows and data models around the merchant use case Week 3-6 Implement wallet creation, deposits, transfers, and Alchemy hooks Week 7 Integrate KYC flow through MoonPay; complete custody wiring with Fireblocks/BitGo Week 8 Push closed beta to the web and mobile stores, gather feedback Month 3 brings merchant payment plugins, so clean API endpoints and webhook design now will save us time later. Acceptance criteria • All on-chain actions are signed via Fireblocks/BitGo policies, never on the client. • Polygon transactions appear in the UI within five seconds using Alchemy websockets. • Front end passes Lighthouse PWA audits ≥ 90. • Automated tests cover at least 80 % of back-end logic. If you’re comfortable owning this stack end-to-end and can hit the above milestones, let’s get started right away.
Project ID: 40388476
6 proposals
Remote project
Active 26 days ago
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6 freelancers are bidding on average ₹34,375 INR for this job

Hello I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. I am having expertise in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart & React- Native, and for web and backend on react js and node js, Python Django. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)
₹50,000 INR in 30 days
6.6
6.6

Hello, I can build your Polygon-based merchant crypto wallet end-to-end with a modular architecture ready for multi-chain expansion. I’m experienced with React, Flutter, Node.js, and integrating custody providers like Fireblocks/BitGo and on-ramp services like MoonPay. I will implement secure wallet creation, deposits, transfers, and real-time updates using Alchemy websockets. All signing will be handled server-side via custody policies, never on the client. Transaction history (with CSV export), multi-currency balances, and role-based access control will be fully implemented. Backend will be clean, scalable, and designed with APIs and webhooks ready for future merchant plugins. Timeline aligns with your 8-week sprint and milestones. Ready to take full ownership and start immediately.
₹25,000 INR in 7 days
5.5
5.5

With a strong background in Blockchain and Cryptocurrency, I'm confident in my ability to hit the ground running on this project. Having developed trading scripts, bots, and even smart contracts for different platforms such as Binance and Coinbase, I understand the significance of robust, modular codebase and full auditability for financial applications. This would therefore make me an asset to your project as you prioritize these aspects. Additionally, my proficiency with relevant technologies like React, Node.js, and Alchemy aligns perfectly with your requirements for the Wallet's front and back-end development. I also have hands-on experience with Fireblocks/BitGo signing and custody wiring, which will ensure all on-chain actions are properly secured for your users. Moreover, your Month 3 plan for merchant payment plugins resonates well with my Automation Skills - designing streamlined business processes. This means that not only can I deliver the required features but also architect the system considering future scalability. My commitment to confidentiality and IP ownership ensures that your ideas remain secure, providing peace of mind as we embark on this exciting project together.
₹45,000 INR in 7 days
4.8
4.8

Anantapur, India
Member since Apr 21, 2026
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