Senior AML Investigator

As a Senior AML Investigator at Polymarket, you own the investigation of escalated cases from transaction monitoring, fraud referrals, market surveillance and sanctions screening. Polymarket is the world's largest prediction market platform, regulated by the CFTC, with $21B traded in 2025. Your judgment on casework-from initial review through SAR filing or documented declination-directly shapes how the compliance program holds up to regulatory scrutiny. The team is small, the caseload is real, and investigation quality is the core of what you do.

What you'll do

• Investigate escalated cases from transaction monitoring, fraud referrals, market surveillance and sanctions screening for signs of money laundering, terrorist financing, fraud and sanctions evasion
• Analyze funding, withdrawal and trading patterns across card, ACH and stablecoin rails, including linked account activity, to build a clear picture of what a customer is doing and why
• Prepare detailed Suspicious Activity Reports (SARs) that meet regulatory requirements and internal policy, and document decisions when no SAR is needed
• Review customer identity and profile information to assess whether activity fits the customer's known background and stated purpose
• Support law enforcement requests, subpoenas and 314(a) reviews
• Perform quality control reviews of analyst work and provide direct, actionable feedback as needed
• Help analysts work through complex cases, and develop job aids and training materials that raise the baseline quality of the team's output

What you bring

• 4 or more years of hands-on AML investigation experience, including writing SARs that have been filed with FinCEN
• Strong working knowledge of the Bank Secrecy Act, SAR filing requirements and core AML regulations
• Demonstrated ability to analyze transaction activity across multiple payment rails and draw well-supported conclusions about the nature of that activity
• Clear written communication, specifically the ability to write SAR narratives that are accurate, organized and defensible
• Experience with investigative research tools such as CLEAR or LexisNexis, and with case management systems
• A track record of managing a caseload independently, meeting deadlines and maintaining quality under volume

Nice to have

• Experience with blockchain analytics tools such as Chainalysis, TRM or Elliptic, and on-chain tracing
• Experience at an exchange, FCM, broker-dealer, prediction market, or sports betting or gaming operator
• Familiarity with CFTC or NFA rules, or with derivatives and event contracts
• Experience applying AI tools to investigation workflows, or a clear interest in doing so
• CAMS certification or equivalent

What we offer

• Competitive salary and equity
• Unlimited PTO
• Full health, vision and dental coverage
• 401(k) match
• Hardware setup including a new MacBook Pro, display and accessories

About Polymarket

Polymarket is the world's largest prediction market platform, enabling individuals to trade on real-world outcomes across politics, economics, sports, culture and current affairs. Operating under CFTC oversight as a regulated prediction market, the platform aggregated $21B in trading volume in 2025.