Machine Learning Engineer (LLM)- E-commerce Risk Control
TikTok, Seattle, Washington
The role
- Advanced machine learning systems to detect and prevent evolving business risks (e.g., account takeovers, collusion, incentive abuse, brushing, click-farms);
- A hybrid approach combining machine learning models, retrieval-augmented reasoning, and multi-agent decision-making systems;
- Cross-functional collaboration with product, ops, security, and trust teams.
What you will do
- Develop and deploy machine learning models (supervised, unsupervised, hybrid) to proactively detect fraud, abuse, and anomalies across seller behavior, user interactions, and transactions.