Responsibilities:

📍Own critical components of a Layer 1 in production Fix, refine, and extend the core node software (consensus, execution, networking, storage). 📍Design, implement, and ship protocol upgrades via coordinated releases and hard/soft forks. 📍Optimize end-to-end performance by improving throughput, latency, and proposer/validator efficiency under realistic workloads (DeFi, gaming, consumer). 📍Profile p2p stack, mempool, block building, and state access; remove hotspots and reduce variance. 📍Deep-dive EVM and Solidity execution paths, opcode semantics, precompiles, and gas accounting. 📍Improve compatibility with major tooling 📍Build upgrades and tools for nodes, validators, and infrastructure

Requirements:

📍Hands-on experience with Layer 1 clients or core protocol work 📍Contributed to Ethereum clients (Geth, Erigon, Nethermind), Solana (Agave), Cosmos SDK/CometBFT, Optimism/OP-Stack, Arbitrum, Polygon, or similar. 📍Strong systems programming skills in one or more: Go, Rust, or C++. 📍Deep understanding of Consensus protocols, validator pipelines, proposer/builder interfaces, finality. 📍Proven experience in Mempool design, transaction pricing/priority, and DoS/spam resistance. 📍A focus on precision, performance, and protocol correctness; bias to measure, then optimize. 📍Excellent written communication: specs, RFCs, design docs, and crisp PRs.

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