Senior Backend Engineer, US Exchange

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About this role

Senior Backend Engineer, US Exchange New York, NY, United States About Polymarket Polymarket is the world's largest prediction market platform. We enable individuals to express views on real-world events by trading on outcomes across politics, economics, sports, culture, and current affairs. Built as a peer-to-peer marketplace with no centralized “house,” Polymarket aggregates diverse opinions into transparent, market-based probabilities that reflect collective expectations about the future. We're growing fast: both in volume ($21B traded in 2025) and in adoption as an alternative news source. Our ambition is to become a ubiquitous beacon of truth in global media, powered by fast, reliable, and deeply technical market infrastructure. About the role Polymarket is looking for a backend engineer to help build and scale the core exchange infrastructure that powers our markets. This role is focused on high-performance, low-latency backend systems that must be correct, fast, and resilient under real-world trading load. You'll be a core individual contributor working with other senior engineers to design, implement, and optimize the systems that sit at the heart of Polymarket's exchange. This is a high-ownership role with minimal bureaucracy and a strong bias toward execution. What you'll do We're looking for an experienced backend engineer who enjoys working close to the metal and solving hard distributed systems problems. - Build the exchange backend: Design and implement scalable, low-latency backend services that power Polymarket's exchange, using C/C++ or other performance-oriented systems languages (Go, Rust, Java). - Optimize for performance & scale: Profile, tune, and debug systems with a

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