Merchant Crypto Wallet MVP - 21/04/2026 15:35 EDT

₹12500-37500 INR

Awarded

Posted 20 days ago

₹12500-37500 INR

Paid on delivery

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.

Mobile App Development

Node.js

PHP

Web Development

Project ID: 40388502

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Active 18 days ago

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12 freelancers are bidding on average ₹72,571 INR for this job

@OutsourceMan

With deep expertise in the essential technologies for your MERCHANT CRYPTO WALLET project, my team at CnELIndia is ready to ensure your vision is realized in the most efficient and effective way possible. Our mastery of React, Flutter, and Node.js positions us perfectly to build your web interface, companion Flutter app, and backend layers seamlessly. Moreover, our extensive knowledge of API development and utility with MoonPay for fiat on-ramp and Alchemy for chain data provide us with a unique advantage in executing your project swiftly and successfully. Our proven track record in delivering projects within tight schedules while maintaining quality gives us confidence that we can meet the demands of your sprint timeline. In sum, hiring my team means you get a seasoned group with a vast skill set comprising not only the core requirements (Flutter, React Native, PHP) but also extensive experience with different aspects of web development critical to your project’s success. If you're looking for a freelancer who can own the whole stack end-to-end and deliver beyond your expectations within your timelines - look no further! My team at CnELIndia is thrilled to partner up with you and turn this project into yet another hugely successful addition to our glowing portfolio.

₹35,000 INR in 7 days

4.9

(603 reviews)

9.0

@bpatidar2793

I understand you need a merchant focused crypto wallet MVP on Polygon with modular architecture, secure custody via Fireblocks or BitGo, and real time transaction visibility using Alchemy. The focus is security, auditability, and scalable API design for future multi chain expansion. I will build React web app and Flutter mobile app with Node.js backend, implement wallet creation, transaction history, role based access, and integrate MoonPay for KYC. I have experience with API driven systems and secure flows and will deliver a production ready beta aligned with your milestone plan.

₹32,000 INR in 45 days

4.8

(10 reviews)

4.5

@Visharaa2024

Hello, I’m excited to help you build your merchant focused crypto wallet and can handle this project end-to-end across web, mobile, and backend. I have strong experience with React, Flutter, Node.js, and blockchain integrations, including custody solutions like Fireblocks, fiat on-ramps like MoonPay, and providers such as Alchemy. I understand the need for a modular and scalable architecture from day one, especially with your plan to expand beyond Polygon. I will design efficient data models and merchant-centric flows, then implement secure wallet creation, deposits, transfers, and real time transaction updates using Alchemy websockets to ensure fast UI reflection. All on-chain actions will be securely signed via Fireblocks policies, keeping keys off the client side. I will also implement multi-currency balance support (USDC, MATIC, wETH), detailed transaction history with CSV export, and role-based access so merchants can manage staff permissions effectively. The backend will include clean APIs and webhook ready architecture for future plugins, along with strong test coverage and performance optimization. I will ensure the frontend meets high PWA standards and delivers a seamless experience on both React web and Flutter mobile apps. I’m comfortable working within your timeline and ready to get started immediately.

₹38,500 INR in 7 days