Senior Data Scientist / Analyst, Finance

Polymarket; New York (NY); On-site; USD 200,000 - 300,000; Full time

Benefits offered by this job

Equity

Unlimited PTO

Health Vision Dental

401k match

Hardware setup

Job summary

Polymarket in New York seeks a Senior Financial Data Analyst to bridge finance and data warehousing. You will own the reporting layer, turning raw trading, ledger, and platform data into clean, reconciled financial reports for close, forecasting, and board reporting.

The role also analyzes how fees, incentives, and promotions flow to revenue and retention in a fast-moving crypto-fintech environment, partnering with finance through monthly close and investor reporting.

Qualifications

• 7+ years in data analysis/finance or similar role with production reporting experience.
• Expert SQL across complex joins on transaction-level data.
• Data science background including causal inference or predictive modeling in Python or R.
• Working knowledge of accounting fundamentals including GL structure and revenue recognition.
• Experience building in modern cloud data warehouses (Databricks, Snowflake, BigQuery, ClickHouse).
• High accuracy; can reconcile reports before publishing.
• Ability to translate between finance and engineering.
• Experience with fintech, crypto data, or on-chain data is a plus.

Responsibilities

• Build and maintain the financial reporting layer in the data warehouse, including modeled tables for close, forecasting, and board reporting.
• Reconcile business records with platform data across general ledger and trading activity.
• Translate raw transaction, fee, and trading activity data into clean financial reports with minimal cleanup.
• Analyze fee structures and their impact on volume, revenue, and trader behavior.
• Measure ROI of incentives and promotions and retention of acquired traders.
• Collaborate with finance on monthly close, variance analysis, and forecasting inputs.
• Replace ad hoc requests with recurring reporting and promote into the modeled layer.
• Write end-to-end documentation for reports and models.

Skills

Data analysis

Expert SQL

Python/R data science

Accounting fundamentals

Finance reporting

Tools

dbt

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 quickly, both in terms of volume ($115B traded to date) 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 Financial Data Analyst to sit between our finance team and our data warehouse. You'll build and own the reporting layer that finance runs on, turning raw platform, on- and off-chain trading activity, and general ledger data into clean, reconciled financial reporting that people can trust without checking it by hand first.

The other half of the role is analytical. You'll be the person who understands how fees, incentives, and promotions actually flow through to revenue and retention, including what a promotion cost, what it returned, and whether the traders it brought in stayed. And you'll do it in a fast-moving environment where new products and incentive structures launch constantly.

What You'll Do

• Build and maintain the financial reporting layer in our data warehouse, including the modeled tables finance relies on for close, forecasting, and board reporting

• Work across the general ledger and platform data to reconcile what the business recorded against what actually happened on the platform

• Translate raw transaction, fee, and trading activity data into clean financial reports that need no manual cleanup before anyone can use them

• Analyze fee structures and how they affect volume, revenue, and trader behavior

• Measure the return on incentives and promotions, including what they cost, what revenue they drove, and whether the traders they acquired retained

• Partner with finance through monthly close, variance analysis, and the numbers that feed forecasts and investor reporting

• Replace ad hoc requests with recurring reporting, working with analytics engineers to promote it into the modeled layer

• Write end-to-end documentation that’s clear and thorough enough that anyone on the team can pick up your reports and models without friction

What We're Looking For

• 7+ years in data analysis/science, financial analysis, or a similar role, with production experience building reporting that a finance team depends on

• Expert SQL. You can work through complex joins across transaction-level data without supervision

• Data science background including causal inference, quasi-experimental methods, or predictive modeling in Python or R

• Working knowledge of accounting fundamentals including general ledger structure, accruals, revenue recognition. You’re comfortable enough to reconcile a report and recognize when it is wrong

• Experience building in a modern cloud data warehouse such as Databricks, Snowflake, BigQuery, or ClickHouse

• A high bar for accuracy. You reconcile before you publish, and you know which numbers cannot be off by a dollar

• Comfort translating between finance and engineering, where the same word often means two different things.

• Comfortable operating in a fast-moving environment where business logic changes frequently and you need to keep pace

• (Plus) Experience with dbt or similar transformation tooling

• (Plus) Familiarity with on-chain data or crypto accounting

• (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

Pay Transparency

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.