Block Builder /Ethereum Protocol Expert

The company is building a next-generation block builder that augments Ethereums capabilities, unlocks new DeFi primitives, and improves neutrality while making block participation more accessible. What youll build:A production-grade block builder platform and the off-chain infrastructure that powers it: block construction algorithms, secure low-latency builder?relay communication and bundle handling, deterministic simulation and safety tooling, and rich observability for builder performance and market effects. Crucially, you will also design and deliver a first-of-its-kind DeFi primitive that depends on our builders augmented capabilities - a concrete, production-ready demonstration of the platforms unique value to users and the wider ecosystem.Requirements: Deep PBS / MEV expertise - strong practical knowledge of Proposer-Builder Separation, MEV-Boost architecture, relay ecosystems and timing games.Ethereum internals - solid understanding of consensus and execution layers (slots/epochs, fork choice, payload delivery) and EVM execution semantics.At least 7 years of software engineering experience, with at least 3 years focused on blockchain infrastructure or MEV systems.Production Rust.

Proficiency building high-performance, networked services in Rust.Experience running production, security-sensitive infrastructure with monitoring, testing and on-call responsibilities.Able to translate protocol tradeoffs into engineering plans and to coordinate across relays, searchers and validators.This position is open to all candidates.