Staff Protocol Engineer

• As a Staff Engineer within the Polygon PoS engineering team, you’ll play a mission-critical role in evolving one of the most used networks in the Web3 ecosystem. Reporting to the SVP of Engineering, you will lead efforts to solve deep protocol-level challenges including scalability, state growth, and latency - setting the architectural direction for the future of Polygon PoS. This is a unique opportunity to work on Ethereum-aligned infrastructure that supports massive scale, collaborating with some of the most experienced protocol engineers in the space. • You’ll be joining a lean, high-caliber team of 7 engineers and will be expected to lead by example - driving excellence in design, implementation, and collaboration. This role is ideal for someone with deep expertise in protocol design, and Golang development who is excited about building performant, resilient systems in a rapidly evolving space. • 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.