Polymarket - Senior Software Engineer, Perpetuals

• Own core exchange backend systems. Take deep ownership of the systems that power order matching, position management, and order state across perpetual futures. • Own core exchange backend systems. • Build and optimize the matching engine. Profile hot paths, reduce lock contention, and drive improvements to latency and throughput backed by benchmarks and production-grade evidence. • Build and optimize the matching engine. • Design for correctness at scale. Build queueing and backpressure mechanisms that keep the orderbook consistent and reliable under high load, without crossing books, creating ghost fills, or introducing stale order state. • Design for correctness at scale. • Build for observability. Instrument systems with metrics, logs, and traces. Establish rollback guarantees and narrow critical paths that make production incidents faster to detect, diagnose, and resolve. • Build for observability. • Improve runtime performance. Optimize CPU, memory, and allocation behavior to meet the demands of a high-throughput exchange in production. • Improve runtime performance. • Own production incidents end-to-end. Debug latency and correctness issues directly, and drive follow-through that leaves the system measurably better each time. • Own production incidents end-to-end.