Chibueze A.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

I'm Louis, a blockchain and security engineer with 5+ years building and auditing production smart contract systems that handle real funds. I've shipped live systems on Optimism and Base mainnet, including gasless meta-transaction relayers, custodial wallet infrastructure with KMS-backed key management, and multi-chain DeFi integrations. On the security side, I've audited on Code4rena, CodeHawks, and private engagements, uncovering critical vulnerabilities and helping secure live platforms. I work primarily in Solidity with Foundry and Hardhat, and I bring full-stack range when a problem turns out to live off-chain: TypeScript, Node.js, Python/FastAPI, Docker, and AWS/GCP. That combination means I can build your contracts, audit them, and troubleshoot the production system around them without needing three different hires. What you get working with me: - Careful, tested code from someone who understands both how these systems are built and how they get exploited - Clear communication: I break down complex findings into plain language and keep you updated proactively - Production caution: I treat live environments with the respect they deserve and never ship untested changes to systems holding funds Whether you need smart contract development, a security audit, or an engineer who can debug a live system under pressure, send me a message and tell me what you're building. I'll give you an honest read on scope and how I can help.