# Fraud Data Scientist at Coinflow Labs

- Company: Coinflow Labs
- What the company does: Coinflow offers businesses a tech-driven payment solution with features like global card acceptance, instant settlements, and built-in security. The platform also includes tools for developers to easily integrate payments into their applications. Backed by Digital Currency Group.
- Company website: https://coinflow.cash
- Type: Startups
- Level: Mid level
- Location: Chicago
- Work setup: On-site
- Pay: $120K to $180K base salary per year (USD)
- Posted: 2026-10-29
- Apply by: 2026-12-13
- Apply: https://jobs.ashbyhq.com/Coinflow/c463c363-b2e2-425f-bc7f-332a53955ded?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/coinflow-labs-fraud-data-scientist/

## About the role

We're hiring a Fraud Data Scientist to be the analytical brain behind our fraud models. You'll dig into how our models and rules are performing, spot where fraud is shifting, and tell the team exactly which features, signals, and strategy changes will move the numbers. Found on 1752vc Careers, the job board for startup and VC roles.

## What they're looking for

- 4+ years as a data scientist or analyst working on fraud, risk, or abuse, ideally at a payments company, fintech, or marketplace
- You've used analysis to measurably improve production fraud models or rules: new features, better thresholds, lower loss, higher approvals
- Strong SQL and Python. Fluent with the stats and ML concepts behind fraud models (gradient-boosted trees, calibration, imbalanced data) even if you're not the one deploying them
- Solid grasp of the fraud problem space: card-not-present fraud, account takeover, card testing, friendly fraud, chargeback reason codes, and how fraudsters adapt
- Comfort with messy, imbalanced, delayed-label data and the judgment to evaluate model performance honestly on it
- Experience designing and analyzing experiments where a false positive and a false negative cost very different amounts

Tags: Engineering

Source: 1752vc Careers, https://www.1752.vc/careers/jobs/coinflow-labs-fraud-data-scientist/