Ethereum Protocol Expert / Block Builder, TLV, 1D Remote

Location: Tel Aviv — hybrid (4 days in office / 1 day remote)

Why join us

We are building a next-generation block builder that augments Ethereum's capabilities, unlocks new DeFi primitives, and improves neutrality while making block participation more accessible. As a Protocol Expert you'll be the steward of protocol-level systems: you'll author production-grade Rust services, define how blocks are constructed and transactions are ordered, own PBS-related integrations, and partner with validators, relays and searchers — directly shaping ordering and inclusion rules, hardening deterministic simulations and safety checks, and driving measurable impact across the Ethereum ecosystem.

What you'll build

A production-grade block builder platform and the off-chain infrastructure that powers it: block construction algorithms, secure low-latency builderrelay communication and bundle handling, deterministic simulati...