Polymarket
Lead Performance Web Engineer
New York
Sponsorship not specifiedDetected 36 days ago
JavaScriptTypeScriptReactNext.jsExpressLoad TestingLeadership
About the role
- You'll set the direction for web performance at Polymarket, establish the standards and systems that keep the product fast at scale, and shape how Polymarket thinks about performance as a discipline.
- We're looking for someone who has operated at serious scale (ie billions of page loads) and knows what it takes to make a high-traffic web product fast for every user, everywhere.
- You'll come in with deep technical conviction and lay the foundation for a world-class web performance practice.
Responsibilities
- Own web performance end-to-end. Take responsibility for load times, rendering performance, and runtime efficiency across Polymarket's web platform, with measurable targets and a clear plan to hit them.
- Optimize the critical rendering path. Identify and eliminate bottlenecks in how pages load and render, including server-side rendering, hydration, code splitting, lazy loading, and asset delivery.
- Drive caching and CDN strategy. Design and maintain caching architectures at every layer (browser, CDN, and edge) to minimize latency and maximize cache hit rates at scale.
- Build performance observability. Instrument real user monitoring, Core Web Vitals tracking, and synthetic testing so the team has continuous, actionable visibility into performance regressions.
- Own web performance end-to-end.
Requirements
- Deep experience in web performance engineering at significant scale - you've worked on systems serving billions of page loads and know what breaks at that level
- Strong expertise across the web performance stack: rendering, caching, CDN configuration, bundle optimization, and Core Web Vitals
- Proficiency in JavaScript and TypeScript, with a strong understanding of how browser engines, the V8 runtime, and the network layer interact
- Experience with real user monitoring, synthetic performance testing, and building observability systems that surface regressions before users feel them
- Technical leadership experience: you've set direction, raised the bar across a codebase, and influenced how a broader engineering team thinks about performance
Nice to have
- (Plus) Experience with Next.js, React, and modern SSR/SSG rendering strategies at scale
- (Plus) Familiarity with edge computing, worker runtimes, or CDN-level programmability
Compensation
- Competitive salary & equity
Benefits
- Competitive salary & equity
- Full Health, Vision, & Dental coverage
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This listing is sourced directly from Polymarket's careers page and normalized into a canonical job model.