Senior Data Analyst, Trust and Safety

Unchain Data; New York (NY); On-site; USD 110,000 - 170,000; Full time

Benefits offered by this job

Competitive salary

Unlimited PTO

Health, Vision, Dental coverage

401k match

Hardware setup

Job summary

Polymarket in New York City is seeking a data professional for its Trust and Safety analytics team. You will own the analytical layer, writing SQL to answer ad hoc data requests and building monitoring dashboards to surface fraud and AML signals in real time.

You will work on live, real-money markets with immediate consequences, collaborating with Trust and Safety and Data teams to reduce noise and improve detection logic.

Qualifications

• 3–5 years of experience in data analysis or a similar role, with ability to handle ambiguity.
• Strong SQL skills with the ability to write clean, efficient queries against unfamiliar schemas.
• Direct experience in fraud detection, AML investigation, or trust and safety analytics at a data-driven organization.
• Proven ability to scope and complete open-ended investigations independently.
• Experience building dashboards that business or compliance teams rely on as a primary source of truth.

Responsibilities

• Write SQL queries to investigate suspicious trading activity from flag through resolution.
• Field ad hoc data requests from Trust and Safety and deliver clear, well-documented answers.
• Build and maintain monitoring dashboards tracking fraud and AML signals.
• Identify patterns in bad actor behavior and translate them into detection improvements.
• Document investigation findings for non-technical stakeholders.
• Collaborate with T&S to prioritize high-risk signals and reduce alert noise.

Skills

SQL

Data analysis

Fraud detection

Dashboard development

Communication

Job description

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's Trust and Safety team is responsible for keeping the US exchange clean — identifying fraud, flagging AML-adjacent activity, and making sure bad actors don't quietly erode the integrity of the market. You'll sit on the Data team and work directly with Trust and Safety, owning the analytical layer of their operation: fielding ad hoc data requests, writing the SQL to answer them, and building the monitoring infrastructure that surfaces problems before they become incidents.

This is an individual contributor role based in our NYC office. You'll be working on live, real-money markets, which means the work has immediate consequences. The goal is for T&S to spend their time on decisions, not data pulls.

Responsibilities

• Write SQL queries to investigate suspicious trading activity on the US exchange, from initial flag through resolution
• Field ad hoc data requests from the Trust and Safety team and deliver clear, well-documented answers without needing step-by-step direction
• Build and maintain monitoring dashboards that track fraud and AML signals on an ongoing basis, keeping them accurate and useful week over week
• Identify patterns in bad actor behavior across accounts, trading history, and on-chain data, and translate those patterns into concrete detection logic improvements
• Document investigation findings in a format that non-technical stakeholders can act on
• Work with the T&S team to prioritize the highest-risk signals and reduce noise in existing alerting systems

Requirements

• 3–5 years of experience in data analysis, with a track record of delivering under ambiguity
• Strong SQL skills — you write clean, efficient queries against unfamiliar schemas without help and can debug your own work
• Direct experience in fraud detection, AML investigation, or trust and safety analytics at an exchange, fintech, or similar environment
• Proven ability to scope and complete open-ended investigations independently, not just answer well-defined questions
• Experience building dashboards that operations or compliance teams rely on as a primary source of truth
• Clear communication skills — you can explain what you found, why it matters, and what should happen next to someone who doesn't know SQL

Nice to Have

• Familiarity with crypto or prediction market data structures, on-chain activity, or exchange-level trading data
• Experience writing or contributing to detection logic or rules engines in a fraud or AML context
• Background working directly with compliance, legal, or operations teams in a regulated environment

Benefits

• Competitive salary & equity
• Unlimited PTO
• Full Health, Vision, & Dental coverage
• 401k match
• Hardware setup: new MacBook Pro, big display, & accessories