• Lead ETC’s migration to a modular client architecture, enabling plugin-based logic and leveraging upstream Ethereum improvements. • Develop a Proof-of-Work consensus engine via the Engine API, decoupling consensus from execution. • Implement key execution-layer EIPs (Cancun/Prague-related): EIP-1153, EIP-5656, EIP-6780, plus supplemental Prague items (EIP-2935, EIP-2537, EIP-7702). • Integrate a delayed base fee mechanism aligned with EIP-1559 while preserving ETC’s monetary model. • Build and maintain testnets, CI/CD pipelines, and developer tooling to improve developer experience and protocol safety. • Collaborate closely with ETC Cooperative engineers, providing weekly progress updates and monthly reports to BITMAIN. • Maintain at least three hours of daily overlap with GMT-3 working hours. • Bilingual position requiring fluency in both Chinese and English. Requirements • Bachelor’s degree or above; minimum three years of blockchain development experience. • Proficiency in Go, Rust, or C++ with strong blockchain protocol development expertise. • Deep knowledge of Ethereum/EVM internals and Proof-of-Work consensus. • Experience contributing to blockchain clients (e.g., Geth, Nethermind, Erigon). • Familiarity with execution-layer EIPs and their implementation. • Self-driven, problem-solving mindset with strong team collaboration skills. • Experience with CI/CD or developer tooling is a plus. • Prior open-source contributions are highly valued. • Fluent in English and Chinese.