Tech Lead Research Scientist - Recommendation Foundation Models (Global E-commerce)

TikTok’s Recommendation Foundation team builds shared foundation models for Global E-commerce. We are advancing event-sequence-driven generative recommendation with LLMs/VLMs, multimodal understanding, and reinforcement learning—moving beyond click prediction toward recommendation agents that understand user intent and connect people with products and content.

We are looking for researchers and engineers with demonstrated LLM impact in industry or academia, or experience building and deploying generative recommendation systems at scale. You will shape foundation-model approaches for Global E-commerce and take them from research to production.

• Own foundation models from research to production: define the modeling strategy and lead data, architecture, pre-training, mid-training, and post-training through deployment.