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PolymarketPosted 2 weeks ago

Senior Data Scientist / Analyst, Risk

On-siteNew York City, New York, United States or New York, United States

Full TimeSenior LevelDoctorate Or Professional DegreeSmall

Job Summary

Investigate and quantify abuse across the funnel, including multi-accounting, fake signups, bonus farming, wash trading, collusion, and market manipulation. Build detection logic that separates genuine users from coordinated behavior by combining on-chain, device, and behavioral signals. Turn one-off investigations into recurring monitoring and alerting systems that surface new patterns automatically. Size financial exposure for each abuse vector to prioritize controls based on actual cost. Partner with product to implement friction points at onboarding, verification, and bonus eligibility, then measure their effectiveness without driving away legitimate users. Support compliance with analysis for investigations, escalations, and regulatory reporting. Own end-to-end documentation of detection thresholds and rationale so engineers and compliance teams can follow the logic without you. Work with analytics engineers to promote detection rules into the modeled layer for reliable execution.

Required Qualifications

  • 7+ years in risk, fraud analytics, trust and safety, or a similar investigative analytical role
  • Expert SQL
  • Pattern recognition instinct
  • Experience building detection rules or models
  • Sound judgment about user impact
  • Comfort working alongside compliance
  • Comfortable operating in a fast-moving environment

Desired Qualifications

  • (Plus) Experience with on-chain analysis, wallet clustering, or blockchain forensics
  • (Plus) Experience with trade surveillance, market manipulation detection, or AML
  • (Plus) Statistical or machine learning background — anomaly detection, graph analysis, or clustering in Python or R
  • (Plus) Experience in fintech, crypto, prediction markets, or other data-intensive financial products

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