Vadym M.

Turn complex fintech requirements into reliable, scalable products. 9+ years specializing in crypto exchanges, DeFi platforms, and trading systems used by millions. Senior React Developer with full-stack expertise, capable of delivering production-ready platforms. I accelerate development with AI-assisted tools like Claude and Cursor while ensuring security, maintainability, and regulatory compliance. Projects I'm proud of: NDA - Decentralized exchange platform for trading, swapping, and staking cryptocurrencies. Built an intuitive interface for market/limit orders, liquidity pools, staking, and analytics dashboards. Optimized tables for large datasets and added dark mode and mobile support. Myntkaup - Cryptocurrency trading platform. Handles deposits, multi-crypto trading, PNL tracking, and regulatory compliance. Enhanced trading features, improved UI/UX on web and mobile, added an admin dashboard, and integrated secure wallet and banking operations. Trustyfy - Fintech platform for crypto and fiat wallet management. Integrated Moralis API, WalletConnect, and crypto transaction approval flows. Enabled secure multi-wallet management, crypto taxes calculation, and bank integrations. Tech stack: ⚡ Frontend: React, Next.js, TypeScript, Tailwind CSS, Material UI, Redux, Remix ⚡ Backend: Node.js, ExpressJS, NestJS, MongoDB, PostgreSQL, Supabase ⚡ Mobile: React Native, Expo ⚡ Blockchain: Solidity, Ethers.js, Web3.js, Polygon, Ethereum ⚡ Crypto Integrations: Aave, Magic.link, Gnosis, Bridge.xyz, Rain.xyz, Coinbase API, Kraken API, Fireblocks, BlockCypher ⚡ AI & Dev Tools: Claude, Cursor ⚡ Infrastructure: AWS, Firebase, Azure, Google Cloud, CI/CD Expertise: Blockchain & Web3 - DeFi/DApp development, crypto wallets, token systems, and secure exchange platforms. SaaS & FinTech - Multi-tenant architecture, admin dashboards, subscription billing, KYC/AML-compliant workflows. Web & Mobile - Full-stack solutions with responsive, optimized interfaces across devices. AI-accelerated development - Claude and Cursor integration for faster, reliable feature delivery. What working with me looks like: ✓ Clear, proactive communication ✓ Scalable, maintainable, secure code ✓ Architecture guidance and strategic input ✓ Faster delivery without compromising quality Build your next crypto, Web3, or fintech product with confidence. Let's explore how to turn your idea into a high-performance, compliant platform. Message me, and we'll set up a quick call to discuss your project.