Senior Data Scientist / Analyst, Institutional

About the Role

Polymarket is looking for a Senior Data Scientist / Analyst to own the analytics behind our institutional relationships - the market makers, large takers, and brokerages that account for a disproportionate share of platform volume. You'll be the person who understands each of these counterparties in depth: how they trade, how they make money with us, and whether the relationship is getting healthier or weaker.

This is a role for someone comfortable on both sides of the conversation - rigorous enough to analyze flow at the order level, and commercial enough to sit in a partner review and explain what the numbers mean for the terms of the relationship. And you'll do it in a fast-moving environment where the institutional side of the business is being built as you go.

What You'll Do

• Own the analytics on our largest makers, takers, and brokerages, and be the internal source of truth on how each relationship is performing
• Build the account-level view of every major counterparty - volume, flow composition, spread capture, fee and rebate economics, and how each has trended over time
• Monitor counterparty health and surface concentration risk, deteriorating engagement, or churn signals early enough for the team to act on them
• Analyze trading behavior to understand how each participant actually makes money on our platform, and whether the terms we have given them still make sense
• Support the institutional team through reviews and negotiations with the analysis behind them - what a counterparty is worth, what they are asking for, and what we should be willing to give
• Quantify how institutional flow affects the broader market, including liquidity, spreads, and the experience of retail traders on the other side of it
• Work with analytics engineers to turn recurring relationship reporting into modeled datasets, so account reviews do not start from scratch every quarter
• Own documentation end-to-end - writing clearly and thoroughly enough that anyone on the team can pick up your analysis without friction

What We're Looking for

• 7+ years in analytics, trading, or counterparty analysis, ideally at an exchange, trading venue, brokerage, or market making firm
• Expert SQL - you can work directly against order book and transaction-level data without supervision
• Deep understanding of how professional participants make money - spread capture, adverse selection, inventory risk, and the economics of providing liquidity
• Credibility in a technical conversation with a sophisticated counterparty - you can hold your own with a firm's own quants
• Commercial instinct - you can look at a relationship and articulate what it is worth to us and where the leverage sits
• Strong communication and discretion, including with sensitive counterparty information and in front of external partners
• Comfortable operating in a fast-moving environment where business logic changes frequently and you need to keep pace
• (Plus) Experience with institutional pricing, fee tiers, or rebate program design
• (Plus) Familiarity with on-chain data or blockchain analytics
• (Plus) Python or R for deeper statistical work on trading behavior
• (Plus) Experience in fintech, crypto, prediction markets, or other data-intensive financial products

Benefits

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

Base salary range

$200,000 to $300,000 annually, plus equity and benefits.

This range reflects a good-faith estimate for this position. Experience levels vary widely within a title here, so please reach out even if your expectations fall outside it. We're always happy to chat.