Core Protocol Engineer

This role is with a Calyptus partner.

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About the role

We're seeking a Core Protocol Engineer with deep expertise with Ethereum execution clients to help us extend the EVM for next-generation compute capabilities. You'll work on expanding the execution layer to support novel precompiles, implement parallel execution patterns, and design systems for heterogeneous compute orchestration.

• Design and implement extensions to EVM clients (Geth/Reth) for supporting stateful precompiles
• Implement novel mechanism design primitives, collaborating with our research team, into the execution layer
• Develop and optimize transaction processing pipelines for heterogeneous workloads
• Research and implement solutions for state access conflicts
• Contribute to core protocol development and EIP implementations
• Collaborate with the research team on protocol specifications and mechanism design improvements
• Design and implement robust testing frameworks for execution client modifications

About you

• Deep understanding of EVM internals and Ethereum execution clients (Geth/Reth)
• Strong experience implementing and optimizing precompiles
• Expertise in Go and/or Rust for systems programming, and Solidity
• Thorough knowledge of Ethereum's roadmap and active participation in protocol discussions
• Experience with parallel execution patterns in blockchain systems
• Strong understanding of consensus mechanisms and blockchain architecture
• Ability to read, understand, and implement EIPs and protocol specifications
• Proven track record of shipping production-grade blockchain systems
• Ability to act quickly under high pressure scenarios and context switch at a high frequency
• A high level of end-to-end ownership and self-direction, with excellent communication skills
• Hungry, high-energy and ability to work within and meet deadlines in a fast-paced environment

Nice to have

• Knowledge of mempool dynamics, transaction ordering and the mev-boost implementation
• Background in mechanism design or market systems
• Deep knowledge of proof systems and their trade-offs around prover time, verifier time, and proof size
• Experience optimizing proof generation and verification pipelines
• Experience with cross-chain bridges or interoperability protocols
• Contributions to Ethereum client codebases
• Background in distributed systems and concurrent programming

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