I've delivered secure Solidity smart contracts and full-stack dApps as a Senior Freelance Web3 Engineer on Upwork and LaborX since 2022.
I build across Ethereum, Polygon, BNB Smart Chain, and Solana, including a production-grade Node.js and Redis monitoring backend for real-time high-value transfers and smart contract events. I also integrate enterprise wallet infrastructure, including Fireblocks custodial flows and Web3 providers, for safer asset management.
My projects include a full-stack OpenSea NFT marketplace clone with primary and secondary sales, royalty distributions, IPFS metadata, and wallet connections.
I pair React and Next.js frontends with Node.js microservices and MongoDB backends, while using unit, integration, and end-to-end testing to deliver secure, gas-efficient blockchain features.
