# Senior Machine Learning Data Scientist at Extend

- Company: Extend
- What the company does: Turn shopper behavior into operational and financial advantage with dynamic perks and policies. Backed by SoftBank VF.
- Company website: https://www.extend.com/
- Type: Startups (AI role)
- Level: Senior
- Location: Remote, US
- Work setup: Remote
- Pay: $135K to $165K base salary per year (USD)
- Posted: 2026-07-29
- Apply by: 2026-10-08
- Apply: https://job-boards.greenhouse.io/extend/jobs/6130367004
- Page: https://www.1752.vc/careers/jobs/extend-senior-machine-learning-data-scientist/

## About the role

The Fraud & Machine Learning team is the secret sauce behind Extend’s post-purchase protection platform. As a Senior ML Data Scientist, you will own the development of cutting-edge machine learning models based on signals and transactions from hundreds of millions of users to detect and prevent fraud, assess risk, and unlock business value.

## What they're looking for

- Hands-on, proactive, and analytical professionals who are passionate about using data to solve complex, real-world problems
- Bachelor’s degree or higher in a quantitative field such as Mathematics, Statistics, Computer Science, Engineering, Operations Research, Physics or related field
- 3+ years of work experience building and deploying machine learning systems into production
- Strong proficiency in Python and SQL
- Strong understanding of ML fundamentals: model selection, evaluation methodology, feature engineering, and common failure modes
- Hands-on experience with PyTorch, scikit-learn, and XGBoost (or similar gradient boosting frameworks)

Tags: Risk Analytics (516)