[Hiring] Senior Software Engineer, Protocol @deCircle

Role Description

We are seeking mission-driven contributors who thrive on tackling complex computer science challenges while delivering high quality code with high-velocity.

• Own features through the full lifecycle: from architecture, implementation, and docs to deployment and monitoring.
• Work cross-functionally to create maximum impact.
• Build rigorous conformance and adversarial tests to ensure implementation compatibility.
• Execute safe protocol upgrades and resolve complex availability/performance issues.
• Use AI-assisted engineering tools effectively while maintaining rigorous standards for correctness, security, review, and technical ownership.

Qualifications

• Professional record of shipping production software and maintainable Rust systems.
• Deep knowledge of Ethereum (EVM, JSON-RPC, clients) and distributed systems.
• Ability to navigate ambiguity and communicate complex design decisions effectively.
• (Preferred) Familiarity with op-node, kona, or Reth implementations.
• (Preferred) Ability to read and navigate production Go code while migrating behavior into Rust.
• (Bonus) Proficiency in Solidity for system-level smart contracts.

Company Description

OP Labs builds Optimism, an open-source blockchain network that powers the next generation of financial infrastructure.

• Hundreds of companies, from the world's largest enterprises like Sony, Coinbase, Kraken, Uniswap, OKX, and Bitpanda, use the OP stack to launch their own blockchains and bring their users onchain.
• Over 65% of Layer 2 activity on Ethereum runs through the OP stack.
• We are a small team building at the speed of the ecosystem we support.
• Remote-friendly with the NYC office as our center of gravity.
• Raised $178M from a16z, Paradigm, and others.
• Building OP Enterprise to enable major institutions to launch and operate OP Stack chains.
• Near term projects may cover:
• Developing kona-node and related Rust-based consensus-client infrastructure as a fully compatible and production-ready alternative to op-node.
• Implementing native account abstraction across the stack.
• Developing premium protocol capabilities that support OP Enterprise.