Backend Engineer - Unichain

Uniswap Labs•New York, NY

68d•$210,000 - $232,000•Hybrid

About The Position

Uniswap Labs builds products that help millions of people access DeFi simply and securely - from the Uniswap Web App and Wallet to crypto infrastructure like the Uniswap Trading API and Unichain. We also contribute to the Uniswap Protocol, which has processed over $2.9 trillion in volume across thousands of tokens on Ethereum and 12+ other chains. Unichain is our L2 chain - purpose-built to be the home for liquidity and DeFi. We're growing the team to tackle ambitious infrastructure challenges: improving performance, expanding capabilities, and ensuring rock-solid reliability as we scale. We're looking for a Backend Engineer who thrives in ambiguity and wants to own meaningful projects from start to finish. You'll work alongside a talented team solving hard problems in blockchain infrastructure and distributed systems. This role is based in our SoHo, NYC headquarters with the option to be partially or fully remote.

Requirements

5+ years of backend engineering experience with a track record of shipping production systems.
Experience building and operating distributed systems or blockchain infrastructure.
Comfort with ambiguity: you can take an unclear problem, break it down, and deliver results.
Solid understanding of cloud architectures, system design, and debugging at scale.
Experience building systems from scratch (0→1) and iterating on them over time.
Genuine interest in Web3 and staying current with industry best practices.

Nice To Haves

Rust proficiency
Hands-on experience with the OP Stack or other Optimism-based rollups.
Familiarity with Reth or Kona - this is a significant plus.
Exposure to zero-knowledge (ZK) systems or cryptographic primitives.
Experience with observability tools and time-series monitoring.
Working knowledge of Go or TypeScript.
AWS or equivalent cloud platform experience.
Love for unicorns :)

Responsibilities

Own projects end-to-end: scope requirements, design systems, implement solutions, and monitor them in production.
Write clean, well-tested Rust code and raise the bar through thoughtful code reviews.
Build and maintain infrastructure that keeps Unichain reliable, performant, and available 24/7.
Proactively identify gaps in our systems and propose practical solutions that move us forward.
Participate in on-call rotations to ensure chain stability and rapid incident response.
Work cross-functionally to turn complex, ambiguous problems into clear technical plans.