Expert Data Modeler, Fraud Risk Detection

Experian

1d • Remote

About The Position

Experian's Fraud Analytics & Commercialization operates across four main functions: client engagement analytics, scalable and custom analytics for financial institutions, fraud analytics consulting, and solution integrity and enablement for production-ready platforms. We are seeking a motivated Data Scientist to assist in building fraud detection models and features that identify high-risk activity while minimizing friction for legitimate customers. This role requires collaboration, empathy, and a desire to understand how insights derived from data become deployed models. The Data Scientist will investigate the latest fraud patterns, build features, and train and evaluate machine learning models. They will work closely with senior data scientists and engineers throughout the entire process, from problem definition to feature engineering, experimentation, and deployment. This is a remote role reporting to the Sr. Manager of Fraud Analytics.

Requirements

• At least 3 years of experience in data science, machine learning, statistical modeling, or a related quantitative field.
• Bachelor's or advanced degree in computer science, statistics, engineering, data science, or another quantitative discipline.
• Direct experience developing fraud-detection, identity-risk, credit-risk, financial-crime, or other adversarial risk models.
• Demonstrated experience creating meaningful fraud features.
• Proficiency in Python and PySpark, with experience writing modular and tested code for large datasets and distributed or cloud data systems.
• Experience using common data science and machine-learning tools such as pandas, NumPy, scikit-learn, XGBoost, TensorFlow, or comparable technologies.
• Knowledge of supervised learning, model evaluation, feature selection, statistical inference, experimentation, and model calibration.
• Experience navigating challenges common to fraud modeling, including class imbalance, delayed or incomplete labels, changing attack patterns, and model drift.
• Experience moving models beyond experimentation and into production, either directly or in close partnership with engineering teams.

Responsibilities

• Investigate large datasets, including exploratory analysis and fraud label development, to identify latest fraud patterns, attack methods, and behavioral signals.
• Translate ambiguous fraud and risk problems into clear hypotheses, analytical plans, model requirements, and measurable success criteria.
• Develop machine learning models for fraud detection across account opening, account takeover, and identity risk.
• Evaluate models using metrics like ROC/AUC/KS/Gini, precision/recall, fraud capture rate, false-positive rate, customer friction, and fraud losses prevented.
• Develop and validate predictive features using identity, transactional, consumer credit history, device, behavioral, temporal, velocity, network, and third-party data.
• Write clean, efficient, well-tested Python and PySpark code, and collaborate with teams to bring models and features into batch, retro, or real-time decisioning environments.
• Monitor feature quality, model performance, population changes, and fraud-pattern drift.
• Design and present analyses for model behavior, tradeoffs, risks, and recommendations.
• Follow appropriate standards for data privacy, model documentation, explainability, validation, and governance.

Benefits

• Great compensation package and bonus plan
• Core benefits including medical, dental, vision, and matching 401K
• Flexible work environment, ability to work remote, hybrid or in-office
• Flexible time off including volunteer time off, vacation, sick and 12-paid holidays

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level