Faizur Rahman

Full-Stack Developer

I'm Faizur, a full-stack developer based in , with 6+ years of experience specializing in building high-performance fintech applications.

Currently working on Orqpay and tradeXtools.

Previously I’ve built a real estate tokenization platform, an NFT marketplace, multi-chain wallets, CRMs, MT5 trading tools, and several SaaS apps.

Say hi Resume

Performance

Experience

Open to workLet's talkMar 2026 - Now
VTR GroupFull-Stack DeveloperMay 2025 - Mar 2026 · Dubai, UAE
Built a fiat and USDT/crypto payment system in Node.js, Express, and PostgreSQL, processing 5,000+ transactions a day.
Designed secure REST APIs with JWT authentication and built the request-validation layer behind every transaction.
Built the trader-facing dashboard in React and Next.js for real-time trade tracking, powered end-to-end by WebSockets (Socket.io).
Cut API latency by ~35% using Redis caching on high-traffic endpoints, keeping the dashboard responsive under load.
Built AI trade analysis tools on LangChain and RAG pipelines, with a React interface for surfacing insights to traders.
Smart Chain TechnologyFull Stack, Blockchain & AI DeveloperOct 2021 - May 2025 · Dubai, UAE
Built a multi-tenant SaaS payment gateway in Node.js and Express, used by 50+ merchants and processing thousands of transactions.
Built merchant-facing dashboards in React, Next.js, and Redux Toolkit for transaction monitoring, wallet balances, and payouts.
Designed a microservices architecture with Docker for transaction processing at scale.
Wrote and audited smart contracts in Solidity using OpenZeppelin, covering token, vesting, and access-control patterns.
Built multi-chain wallets covering both EVM and the Cosmos ecosystem, including the wallet-connect flows on the frontend.
Built REST and GraphQL APIs with optimized MySQL/PostgreSQL queries, and tuned gas usage on-chain to cut transaction costs.
Containerized everything with Docker, set up CI/CD pipelines, and wrote unit/integration tests with Jest and Hardhat.
Delimp TechnologyReact & Backend DeveloperJan 2021 - Oct 2021 · New Delhi, India
Built React apps with memoization and lazy loading, plus reusable hooks and component patterns, to keep things fast.
Built backend APIs in Node.js and Express with secure integrations for the React frontend.
Added MetaMask and WalletConnect support in the UI for Web3 wallet interactions.
Improved performance through API optimization and caching, cutting load times across key user flows.
TopYa!UI/UX DeveloperJun 2019 - Dec 2020 · New Delhi, India
Designed responsive UI systems with Tailwind and SCSS across web and mobile breakpoints.
Built reusable React component libraries for CMS platforms, speeding up delivery across projects.
Improved usability and accessibility across web and mobile, following WCAG-aligned practices.

Performance

Performance

Experience

Skills

Language

Frontend

Backend

Blockchain

AI

Infrastructure

Projects

tradeXtools

Orqpay

Tick

Aqar Chain

Smart Meals

SmartPOS

Payapp2

Performance