Data Analyst (Meta, contracted via TEKsystems) - Fraud detection model refinement and AI QA oversight
Served as internal QA lead and supported refinement of LLM-based fraud detection models through analysis of user-profile data. Conducted in-depth investigation of fraud-related behavior patterns to improve model training inputs and evaluation outcomes. Integrated privacy-by-design workflows to ensure compliance while working on AI-driven detection improvements. • Performed behavioral pattern identification using large-scale SQL-derived features • Contributed to refinement of LLM-based fraud detection model performance • Coordinated with policy and development teams to address data and labeling-related issues • Established QA operating protocol to improve downstream model reliability