# Senior Machine Learning Engineer - Fraud at Plaid

- Company: Plaid
- What the company does: Backed by Index, Kleiner Perkins and NEA.
- Company website: http://plaid.com/
- Type: Startups (AI role)
- Level: Senior
- Location: San Francisco HQ
- Work setup: Remote
- Pay: $229K to $315K base salary per year (USD)
- Posted: 2026-09-12
- Apply by: 2026-10-27
- Apply: https://jobs.ashbyhq.com/plaid/85cd5d07-9920-45fa-931a-daf8c3558e5b
- Page: https://www.1752.vc/careers/jobs/plaid-senior-machine-learning-engineer-fraud/

## About the role

Build hands-on machine learning expertise across the full ML lifecycle, from feature engineering and experimentation to model deployment. Take models from initial experimentation through production and evaluate their impact using real-world customer outcomes.

## What they're looking for

- 7+ years of professional experience in machine learning, applied science, or software engineering for ML, including hands-on model development and deployment
- Hands-on experience designing, training, tuning, and deploying models, and measuring improvements in production performance or business metrics
- Strong ML and statistical fundamentals, including feature engineering, experiment design, model evaluation, and diagnosing why a model underperforms
- Strong understanding of the strengths, limitations, and applications for both traditional and modern ML methods, including gradient-boosted trees and neural networks
- Experience constructing training datasets and addressing label quality, data leakage, class imbalance, and generalization across time periods or populations
- Strong Python skills, SQL proficiency for working with training and evaluation data, and hands-on experience with ML frameworks such as PyTorch, scikit-learn, XGBoost, or equivalents

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