Staff Protocol Engineer

Responsibilities

• Lead design and prototyping of long-term solutions to address scalability, latency, and state growth challenges on the Polygon PoS network.
• Drive architectural decisions across the PoS codebase, contributing to Geth, Cosmos SDK, or CometBFT-based systems as needed.
• Identify and resolve deep technical issues in protocol behavior, consensus, and state sync.
• Champion code quality, documentation, testing, and developer best practices across the team.
• Mentor and support engineers across the stack to elevate the overall engineering bar.
• Collaborate cross-functionally with protocol researchers, DevOps, security, and ecosystem teams to ship robust upgrades to the live network.

Requirements

• 7+ years of backend or protocol engineering experience
• Golang expertise
• Ethereum/Cosmos experience
• Architecture leadership
• Distributed systems

Preferred Qualifications

• Public blockchain contributions
• Performance optimization
• Technical communication
• Decentralized systems passion

Benefits

• Remote first global workforce
• Health insurance
• 401k match
• Home office allowance
• Book allowance
• Internet/phone reimbursement
• Flexible time off
• Company laptop
• Wellness benefits

About the Company

Polygon Labs is a software development company building and developing a network of aggregated blockchains via the Agglayer, secured by Ethereum. As public infrastructure, the Agglayer will bring together user bases and liquidity for any connected chain, and leverage Ethereum as a settlement layer. Polygon Labs has also contributed to the core development of several widely-adopted scaling protocols and tools for launching blockchains, including Agglayer CDK, Polygon PoS & Katana.