Staff Protocol Engineer

Polygon Labs

3d•Remote

About The Position

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.

Requirements

7+ years of backend or protocol engineering experience, with 2+ years in senior or staff-level roles.
Deep experience working in Golang, ideally within distributed systems, consensus, or blockchain infrastructure.
Experience contributing to or working with Ethereum clients (e.g., Geth) or Cosmos-based stacks (e.g., Cosmos SDK, CometBFT).
Demonstrated ability to lead architecture, code quality, and complex system design in fast-paced engineering teams.
Comfortable working asynchronously with distributed teams in EMEA, US East Coast, or adjacent time zones.

Nice To Haves

Previous contributions to public blockchain protocols or open-source infrastructure.
Familiarity with performance optimization tools and techniques in large-scale systems.
Ability to communicate complex technical topics clearly across varied stakeholders.
Passion for decentralized systems and aligning infrastructure to Ethereum’s values.

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.

Benefits

Remote first global workforce
Industry leading Medical, Dental and Vision health insurance
Company matching 401k with 3% match
$1,500 Home Office Set Up Allowance (life-time max)
$75 Monthly internet or phone reimbursement
Flexible Time Off
Company issued laptop
Egg freezing, mental health, and employee wellness benefits
In certain countries medical, dental and vision is fully covered for employees & their dependents. This is country and plan specific.
401k is for United States employees only