Blockchain & Full Stack Developer

Designed and built an end-to-end web application with Web3 integrations using React, Node.js, Express, and Solidity smart contracts. The platform enabled secure on-chain and off-chain interactions and supported more than 10,000 monthly users.

Implemented and tested Solidity smart contracts with Hardhat and Truffle. Performed audits and remediation that reduced contract vulnerabilities by 90% and failed transactions by 35%.

Optimized PostgreSQL database design and backend performance, increasing API throughput by 40% and reducing average response time from 450ms to 180ms. Built Docker and GitHub Actions CI/CD pipelines that reduced release time to under 15 minutes, and mentored four junior developers while delivering six major feature releases.

Designed and implemented scalable decentralized applications and REST APIs using React, Node.js, Express, Solidity, ethers.js, and Web3.js. Integrated MetaMask and WalletConnect to support seamless wallet interactions across Ethereum and Polygon.

Developed and audited eight smart contracts with Hardhat, applying upgradeable patterns and gas optimizations that reduced average gas consumption by approximately 30% and improved on-chain success rates by 28%.

Architected backend microservices and optimized PostgreSQL queries and caching layers, increasing API throughput by 50% and reducing latency by 60% under load. Automated releases with Docker and GitHub Actions, expanded test coverage, mentored six junior engineers, and led delivery of more than 10 product features supporting approximately 25,000 monthly active users.

Lead the development of secure, upgradeable Solidity smart contracts and on-chain components using Hardhat. Delivered more than 12 contracts supporting token, governance, and marketplace functionality.

Implemented multi-chain support for Ethereum and Polygon, along with wallet integrations that improved user onboarding and transaction success. Reduced average gas use per interaction by 25% through contract optimization.

Built and maintained backend services and node infrastructure, helping achieve 99.9% DApp uptime and improving incident response through monitoring and alerting. Introduced Docker and GitHub Actions pipelines, collaborated on security audits and remediation, mentored three junior developers, and coordinated cross-team releases.

Completed coursework in advanced mathematics and programming fundamentals using Python. Led a 12-member programming club, developed a JavaScript web application for school event management, and independently studied blockchain fundamentals and basic Solidity development.

Studied data structures and algorithms, databases, computer networks, distributed systems, cryptography, and software engineering. Completed a capstone decentralized application using React, Node.js, Express, Hardhat, Solidity, MetaMask, and Polygon testnet deployment, with emphasis on upgradeable contracts and gas optimization.