About the role
About Polymarket Polymarket is the world's largest prediction market platform. We enable individuals to express views on real-world events by trading on outcomes across politics, economics, sports, culture, and current affairs. Built as a peer-to-peer marketplace with no centralized "house," Polymarket aggregates diverse opinions into transparent, market-based probabilities that reflect collective expectations about the future. We're growing fast — both in terms of volume ($21B traded in 2025) and adoption as an alternative news source. Our ambition is to become a ubiquitous beacon of truth in global media and we need your help adding fuel to the fire.
About
the Role Polymarket is looking for a Senior Investigation Analyst to help protect the integrity of its markets. Market Integrity's remit covers insider trading, market manipulation, spoofing and order-book abuse, coordinated multi-account activity, bot and automated-trading abuse, sanctions and illicit-finance exposure, and account takeover and fraud. You'll own investigations end to end and serve as a point of contact for law enforcement and regulatory inquiries into suspicious activity — using on-chain analysis, vendor surveillance tools, and referrals from across the company to build cases from initial signal through documented, defensible findings.
What You'll Do Investigate insider trading, coordinated wallet activity, spoofing, and other market integrity matters from initial signal through a documented, defensible finding Trace wallets, funding flows, and transaction history using tools such as Chainalysis to identify coordination and test hypotheses Review spoofing, layering, and related order-book manipulation using trade-surveillance tooling (e.g., Eventus/Validus) alongside on-chain evidence Evaluate and respond to subpoenas and legal process, assessing risk and sensitivity and meeting binding deadlines Write investigative reports and findings that hold up to scrutiny from leadership, law enforcement, or outside counsel Stay current on manipulation and fraud patterns as prediction markets and the underlying blockchain ecosystem evolve
