remote
Data Scientist II - Mastercard
Data Scientist
Data Scientist II focused on building AI/ML models for security solutions, leveraging Python, SQL, and AWS to analyze large datasets and deliver actionable insights for fraud prevention and risk management.
About the role
Key Responsibilities
- Design, develop, and deploy machine learning models to detect and mitigate security threats across payment platforms.
- Collaborate with cross‑functional teams to define data requirements, clean and transform large datasets using SQL and Python.
- Implement end‑to‑end ML pipelines on AWS, ensuring scalability, reliability, and compliance with security standards.
- Perform feature engineering, model evaluation, and hyperparameter tuning to improve detection accuracy.
- Communicate findings and model performance to stakeholders through clear visualizations and reports.
Requirements
- 3+ years of experience in data science or machine learning within a security or fintech context.
- Excellent analytical skills with a track record of translating complex data into actionable insights.
- Effective communication skills and ability to work collaboratively in a fast‑paced environment.
Skills
pythonmachine learningdata analysissqlaws