# Senior Data Scientist at Circle Software Corporation

- Company: Circle Software Corporation
- What the company does: Backed by 500 Global.
- Company website: https://ww5.createmycircle.com
- Type: Startups
- Level: Senior
- Location: San Francisco - remote first in US
- Work setup: Remote
- Pay: $153K to $205K base salary per year (USD)
- Posted: 2026-10-16
- Apply by: 2026-11-30
- Apply: https://circle.wd1.myworkdayjobs.com/en-US/Circle/job/San-Francisco---remote-first-in-US/Senior-Data-Scientist_JR101174-1?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/circle-software-corporation-senior-data-scientist/

## About the role

As Circle expands the customers and payment methods it serves, our fraud exposure grows and changes. We rely on conservative limits and third-party models today, and we are building our own. As a Senior Data Scientist on Fraud Analytics, you will own the prediction side of our fraud loop. You will turn labels into features and models, measure their accuracy, and shift Circle from vendor scores to in-house models. You will work with Fraud Strategy, Fraud Operations, Risk Engineering, and Compliance. Found on 1752vc Careers, the job board for startup and VC roles.

## What they're looking for

- 5+ years in data science or applied ML on fraud, risk, or financial crime
- Advanced Python and SQL, and experience with XGBoost, LightGBM, or similar
- Experience building models with sparse, delayed, or biased labels, including cold start, reject inference, and chargeback lag
- Strong statistics: anomaly detection, graph or network methods, experimentation, and threshold optimization
- Experience taking models to production and monitoring them
- Clear communication with technical and non-technical partners


Source: 1752vc Careers, https://www.1752.vc/careers/jobs/circle-software-corporation-senior-data-scientist/