Mandy Lee

Senior Analytics & Strategy Program Manager @TikTok

London, GB

Bridging product analytics and product/program management to drive strategy and execution.Analytics & Metric Design• Developed an enhanced product quality rating metric incorporating review volume, category variance, and severity, improving predictive power of repurchase rates by 8.5%• Co-developed the Shop Performance Score with the Algorithm team, combining fulfillment, complaints,returns, and responsiveness into a composite metric. Deployed across campaigns and affiliate marketing togate under-performing sellers, reducing customer complaints by 8% and driving an 11% GMV uplift.Insights & Programme Delivery• Piloted and scaled dynamic thresholds and category-specific logic through experimentation in the Traffic Control model, resulting in a 7.9% drop in customer complaints and a 50% reduction in GMV overkill.• Designed and launched the first rule-based automated protection model across EMEA to balanceregulatory compliance with seller experience. The model identified trusted, high-value products and paused enforcement on low-risk violations, preventing enforcement overkill. This reduced GMV overkill by 12% while improving seller experience scores by 15%• Partnered with AI engineering team to design and launch a machine learning model within 2 weeks, reducing manual review costs by 45%, increasing onboarding pass rate by 4.5%, and lowering shop deactivation rate by 3.6%; integrated model into production in 1 month.• Partnered with senior stakeholders across Legal, Biz Ops, and Engineering to evaluate market options, define requirements, and implement ID verification and third-party solutions. Improved seller onboarding pass rate by 3% and reducing post-onboarding shop deactivation rate by 15%

The Hebrew University of Jerusalem

Bachelor's degree, Computer Science and Humanity Joint Program

National Chengchi University

Bachelor's degree