Senior Backend Engineer Exchange Infrastructure
Polymarket is a decentralized information markets platform that lets users bet on the outcome of real-world events.
Maintainer signals as of 8/14/2026
Funding history
About Polymarket
Polymarket is an information markets platform where users can trade on the outcomes of various events, leveraging the power of free markets to forecast the future. It provides a mechanism for users to bet on real-world events and earn money based on the outcomes.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will own critical paths in the CLOB engine, profile matching and orderbook hot paths, improve latency and throughput, reduce lock contention, design safer queueing and backpressure, and build observability and rollback guarantees. You will reason about settlement risk across on-chain and off-chain state, optimize Go runtime performance, and lead production incident resolution involving latency, correctness, and settlement state.
Requirements
- Senior-level backend or systems engineering experience
- Production ownership of an exchange system or high-throughput trading backend with on-chain settlement
- Experience with matching engines, order routing, or market data infrastructure
- Deep Go expertise, including garbage collection tuning, hot path optimization, and runtime internals
- Strong concurrency skills involving lock contention, race conditions, asynchronous correctness, and backpressure
- Production profiling experience with pprof, flamegraphs, and metrics
- EVM or blockchain transaction lifecycle experience, including confirmations, reorgs, and on-chain state
- Strong computer science fundamentals in algorithms, data structures, and systems thinking
- Rust experience
- Redis, PostgreSQL, gRPC, and Protobuf experience
- Kubernetes and AWS production operations experience
Responsibilities
- Own the CLOB engine's critical path
- Profile matching and orderbook hot paths
- Improve latency, throughput, and asynchronous engine flow
- Reduce lock contention while preserving correctness
- Design safer queueing and backpressure for orderbooks
- Instrument systems with pprof, metrics, logs, and traces
- Establish rollback guarantees and narrower critical paths
- Design systems to handle settlement edge cases correctly
- Reduce garbage collection pressure and optimize CPU and memory allocation
- Debug and resolve production incidents involving latency, correctness, and settlement state
Benefits
- Equity
- Unlimited PTO
- Full health coverage
- Full vision coverage
- Full dental coverage
- 401k match
- New MacBook Pro
- Display and accessories