From Web3 product engineering to Ethereum core protocol. I build testable systems, sharper tooling, and developer experiences that survive real review.
Jack CC
Graduate student in Electronic Information. Focused on Ethereum protocol tooling and product-grade engineering.
Current focus: execution-specs, consensus-specs, Lodestar validator tooling, and developer tooling that makes hard systems easier to review.
Engineering style: read code -> isolate behavior -> ship small PRs -> test
ethereum/execution-specs#2738: optimizedForkCacheto skip cloning unchanged fork templates.ethereum/execution-specs#2778: moved fork module loading toward theHardforkabstraction after maintainer feedback.ethereum/consensus-specs#5192: added infrastructure coverage forwith_custom_state.ChainSafe/lodestar#9236: added per-keystore password support for validator import.protocol-studies#502 / #503: small EPF ecosystem maintenance contributions.
AI PR Helper MVP: AI-assisted developer tool for fetching URLs, reading diffs, and summarizing PR context.fastKOL: SPARK AI Hackathon LLM track Pioneer Award project.Web3CareerBuild: React / Next.js / TypeScript product engineering across core management workflows.



