Design and maintain public blockchain infrastructure: author Solidity smart contracts (ERC-20/721), build finality-aware, event-driven services, integrate HSM-backed mint/burn flows, ensure reconciliation and scalability, and mentor junior engineers.

Develop and maintain full-stack web applications and APIs using TypeScript/Node.js and React/Next.js; optimize performance, collect data, fix bugs, and collaborate with stakeholders.

Design and operate production-grade blockchain node infrastructure, manage institutional key lifecycles (HSM/MPC), build real-time on-chain surveillance and reconciliation systems, and implement secure IaC and CI/CD pipelines for smart contracts and cloud infrastructure.