Senior Web Engineer

The role

A Senior Web Engineer will own complex frontend features from scoping to production support. You will work across the stack to build web surfaces, improve reliability, and enhance frontend observability.

What you will do

• Own and ship complex features end-to-end.
• Collaborate with backend, QA, TPM, product, and design teams.
• Own reliability and incident response for your domain.
• Monitor dashboards, alerts, and user reports to identify and respond to issues.
• Build and improve logs, metrics, alerts, dashboards, and error reporting.
• Identify technical debt and propose pragmatic refactors.
• Contribute to system design discussions.
• Connect technical work to measurable results like performance and reliability.
• Break down ambiguous product requirements into engineering work.

Required qualifications

• 5+ years of frontend web engineering experience with experience in crypto, Web3, or adjacent financial infrastructure
• Strong hands-on experience with React, Next.js, TypeScript, and modern frontend development
• Strong frontend system design instincts across state management, data fetching, caching, performance, reliability, and maintainability
• Experience owning complex features from scoping through launch
• Strong debugging skills and experience responding to production issues
• Comfortable working with backend engineers on APIs, data contracts, failure modes, and system behavior
• High agency
• Product-minded
• Able to operate independently in a fast-moving, ambiguous environment
• Clear communicator during planning, launches, bugs, and incidents

Nice to have

• Frontend performance specialization
• Experience with high-traffic, real-time, marketplace, trading, or financial products
• Experience building for WebViews or shared web/mobile surfaces
• Experience improving frontend observability, alerting, or reliability practices
• Strong practical use of AI tools to improve engineering productivity

Benefits

• Competitive salary & equity
• Unlimited PTO
• Full Health, Vision, & Dental coverage
• 401k match
• Hardware setup: new MacBook Pro, big display, & accessories

About the company

Polymarket is the world's largest prediction market platform. It enables individuals to express views on real-world events by trading on outcomes across politics, economics, sports, culture, and current affairs.