Senior C/C++ Engineer, US Exchange

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About this role

Senior C/C++ 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 core C/C++ engineer to help build and scale our exchange infrastructure. This is a low-latency, high-throughput systems role focused on the heart of Polymarket's trading engine. You'll work on performance-critical components that directly impact market quality, reliability, and speed. You'll operate with high ownership and minimal bureaucracy, collaborating closely with other senior engineers to design, implement, and optimize systems that must be correct, fast, and resilient under real-world load. What you'll do We're looking for an experienced individual contributor who enjoys solving hard systems problems and pushing performance limits. - Build the exchange core: Design and implement low-latency, high-throughput components of Polymarket's trading and matching infrastructure using C/C++. - Optimize for speed & scale: Profile, tune, and debug performance-critical systems, with a relentless focus on latency, throughput, and determinism. - Design robust systems: Develop efficient algorithms and

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