Growth Engineer

Polymarket Polymarket · Fintech · New York, NY · Engineering

Growth Engineer at Polymarket, a prediction market platform. This role focuses on building systems to convert visitors into traders and advocates, including referral systems, leaderboards, and onboarding flows. The engineer will own features end-to-end, partner with marketing, instrument features, run A/B experiments, and analyze funnels. Requires strong full-stack skills, product instincts, and experience with experimentation.

What you'd actually do

  1. Ship end-to-end growth features across onboarding, referral, and market discovery flows, from spec to production to measurement.
  2. Build and maintain core growth surfaces including leaderboards, referral code systems, invite flows, and social share mechanics.
  3. Partner with marketing to take half-formed GTM asks and turn them into clearly scoped, buildable features, pushing back when the idea won't move the right metric.
  4. Instrument every feature you ship with proper event tracking and funnel analytics so you always know whether it worked.
  5. Run A/B experiments, analyze results with appropriate statistical rigor, and make the call to kill, iterate, or scale.

Skills

Required

  • Full-stack development
  • Growth feature development
  • A/B testing
  • Event instrumentation
  • Funnel analysis
  • Product analytics
  • Stakeholder collaboration

Nice to have

  • Crypto/web3 product experience
  • Prediction market experience
  • Financial product experience
  • Consumer growth experience

What the JD emphasized

  • Proven track record shipping production growth features end-to-end, referrals, onboarding, virality loops, or similar, with minimal oversight.
  • Strong enough full-stack skills to build independently across frontend and backend without waiting on other engineers.
  • Comfortable working directly with marketing or GTM stakeholders, translating ambiguous requests into scoped engineering work.
  • Fluency in experimentation, including A/B testing, event instrumentation, funnel analysis, and interpreting results correctly.
  • Good product instincts. You should be able to look at a growth loop and have a real opinion on what's broken and what to build next.
  • Experience making deliberate speed versus quality tradeoffs. You know when to ship scrappy and when technical shortcuts will cost you later.