# Senior Investigation Analyst

**Company:** [Polymarket](https://hotfix.jobs/companies/polymarket)
**Location:** New York, NY
**Role:** Other
**Experience:** 5+ years
**Skills:** chainalysis, trm labs, elliptic, eventus, validus, nasdaq smarts, SQL, Python
**Posted:** 2026-07-31

> Senior Investigation Analyst protecting prediction market integrity at Polymarket by investigating insider trading, manipulation, fraud, and illicit activity using on-chain forensics and trade surveillance tools. Build defensible cases, respond to legal inquiries, and interface with law enforcement.

## Job Description

## Responsibilities
- 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.

## Requirements
- 5–7+ years of investigative experience in trade surveillance, market structure or regulation, blockchain forensics, financial crimes, law enforcement, or a comparable field involving building cases from ambiguous evidence.
- Working knowledge of order-book mechanics and manipulation typologies (spoofing, layering, wash trading), or blockchain analysis and on-chain typologies — ideally both.
- Direct experience with blockchain analysis tools (e.g., Chainalysis, TRM Labs, Elliptic) or trade-surveillance platforms (e.g., Eventus/Validus, Nasdaq SMARTS).
- A track record of building a case from limited initial indicators and documenting it clearly enough to act on.
- Sound judgment evaluating and responding to legal and regulatory requests under real deadlines.
- Genuine comfort with ambiguity — a meaningful share of what you'll investigate won't map to a category that already exists.

## Nice-to-Haves
- Experience with prediction markets or other crypto-native platforms.
- SQL or Python, used to test your own hypotheses against trade or on-chain data.
- Prior experience serving as a point of contact for law enforcement or regulators.

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**Canonical:** https://hotfix.jobs/jobs/94fd484e-c405-4fe5-b220-de5dadf3ea93