Lead Data Scientist
My core day-to-day tasks in this role included:• Leading the research and testing of tools and infrastructure for seamless cross-team collaboration.• Establishing credibility and gaining buy-in from key stakeholders by delivering high-value deliverables.• Designing and implementing an end-to-end risk identification and mitigation pipeline.• Creating a predictive model and segmentation index to detect policy abuses.• Developing innovative tools and methods to identify scams.A section of my key accomplishments in this capacity entails:• Leveraging knowledge, tools, and insights from other Nike teams to maximize efficiency and effectiveness.• Training and equipping team members with the necessary skills to deploy and maintain data science solutions.• Developing and executing a policy abuse propensity scoring model using XGBoost, achieving a test F1-score of 0.82.• Completing a Proof of Concept (POC) for detecting shipping-based scams using supervised machine learning, resulting in a test AUC of 0.88.• Successfully delivering an account fraud detection tool that reduced investigation time by over 40% and decreased the false positive rate by 22%.• Implementing an online risk identification and mitigation pipeline, capturing, analyzing, and reporting on over 1,000,000 risk events since January 2023.Skills:• Data Science• Cross Team Collaboration• Stakeholder Engagement• Risk Identification• Policy Abuse Detection• Predictive Modeling• Segmentation• Scam Identification• Team Training• Model Development• Machine Learning• Fraud Detection• Data Analysis• Analytic Reporting• Data Science Pipeline Implementation