About the role

Role Overview

Senior Software Engineer (Protocol) working on core Ethereum L2 protocol specifications and clients for the OP Stack, and related enterprise capabilities.

Responsibilities

Own protocol features end-to-end: architecture, implementation, documentation, deployment, and monitoring.
Collaborate cross-functionally to maximize impact.
Create rigorous conformance and adversarial tests to ensure compatibility.
Execute safe protocol upgrades and troubleshoot complex availability/performance issues.
Use AI-assisted engineering tools while maintaining high standards for correctness, security, reviews, and technical ownership.

What You’ll Work On (Near-Term)

Develop kona-node and related Rust consensus-client infrastructure as a production-ready alternative to op-node.
Implement native account abstraction across the stack.
Build premium protocol capabilities supporting OP Enterprise (enabling institutions to launch and operate OP Stack chains).

Requirements

Proven track record shipping production software, including maintainable Rust systems.
Deep knowledge of Ethereum concepts (EVM, JSON-RPC, clients) and distributed systems.
Ability to operate in ambiguity and communicate complex design decisions.

Preferred / Bonus

Familiarity with op-node, kona, or Reth.
Ability to read and navigate production Go code while migrating behavior into Rust.
Bonus: proficiency in Solidity for system-level smart contracts.

About OP Labs PBC

OP Labs PBC builds Optimism, an open-source blockchain network and Ethereum Layer 2 infrastructure platform. Its team develops the OP Stack, which powers a large share of Ethereum L2 activity, and also works on OP Enterprise to help major institutions launch and operate OP Stack chains.

Senior Software Engineer, Protocol (Rust)

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