[Remote] Web Platform Lead Engineer

Note: The job is a remote job and is open to candidates in USA. Polymarket is a prediction market platform that enables individuals to trade on outcomes across politics, economics, sports, culture, and current affairs. The Web Platform Lead Engineer will own the systems that make frequent web releases safe, including AI-driven developer tooling, observability, alerting, performance monitoring, and automated verification. The role also leads a small team while remaining hands-on in building and maintaining the web platform's performance and reliability foundations.

Responsibilities

• Build and maintain agentic workflows that give every web engineer leverage: PR review agents, automated verification of fixes against production data, perf-regression detection and bisection, release gates
• Define the performance budget for Polymarket web and enforce it automatically — in CI, at the edge, and in RUM
• Instrument what matters: real-user metrics tied to the surfaces where users trade, not vanity lab scores
• Own the alert lifecycle end to end — from detector to dashboard to the engineer who acts on it; kill flaky signals and make green mean shippable
• Set the architecture bar for how the web team measures, ships, and verifies — and automate it so the bar holds at high velocity
• Own Core Web Vitals, real-user monitoring, bundle and rendering budgets, and caching and streaming strategy for Polymarket web
• Maintain one coherent, trustworthy picture of production web health across errors, traces, and RUM
• Own regression detection that fires when something real breaks — performance or correctness — and stays quiet otherwise
• Build and maintain the views the team and leadership actually use: release health, vitals, error budgets, funnel-critical surfaces
• Lead a small team from day one — set the direction, raise the bar, and multiply their output while staying hands-on

Skills

• Expert in web performance — you can take a slow page and make it fast, and prove the win with real-user data, not lab runs
• Experience shipping for real users at scale — you've owned a production web app with a large, active user base where a regression hit thousands of users within minutes and monitoring was how you knew
• Deep Next.js experience: App Router, React Server Components, streaming/PPR, caching layers, hydration cost
• Experience building AI/agentic developer tooling — or serious automation — that a team relied on daily, with opinions about where agents genuinely help vs. where they add noise
• Experience owning observability and alerting for a high-traffic production product: instrumentation, dashboards, on-call signal quality
• Strong systems thinking across the full path: CDN/edge caching, browser internals, measurement bias, backend latency's effect on the frontend
• Bias for ownership — this domain has no backstop
• Able to lead a small team while staying hands-on
• (Plus) Real-money or trading product experience — where latency and correctness both cost money
• (Plus) Cloudflare at depth: Workers, cache rules, edge telemetry
• (Plus) Experience running LLM-based code review or test generation at scale

Benefits

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

Company Overview

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