Machine Learning Engineer, TikTok Brand Ads

- Align cross modal brand ads and content - Build cross modal ad representations - Build large scale indexing and retrieval systems - Create content understanding pipelines - Deploy and optimize model inference for production - Develop multimodal LLM models - Enable vector level matching and filtering - Improve ads ranking and retrieval performance - Model video semantic meaning - Optimize training with embedding distillation - Optimize training with hard negative mining