TikTok
Senior Machine Learning Engineer - TikTok Short Video Content Understanding/Multimodal Recommendation
San Jose, California · Senior · Full-time · Posted Oct 28, 2026
About the job
Lead research, development, and production deployment of multimodal content-understanding and recommendation algorithms for TikTok short videos.
What you'll do
- Develop multimodal algorithms and apply them to recommendation and other scenarios to improve business metrics.
- Research multimodal and MLLM technologies and design algorithms that address business needs and advance the technology.
- Drive engineering deployment, maintaining model stability, scalability, and efficiency in production.
What they ask for
- Proven experience in multimodal content understanding and expertise in large language models (LLMs).
- Familiarity with cutting-edge progress in the field.
- Strong technical foundation in at least one major deep learning framework, such as PyTorch or TensorFlow.
- Proactive mindset, ownership, communication skills, and ability to collaborate across teams.
Nice to have
- Hands-on experience deploying content-understanding solutions in search, advertising, recommendation, or related domains.
Tools
LLMs, MLLM, PyTorch, TensorFlow, RL
AI focus
Multimodal content understanding and recommendation, including MLLM applications, generative recommendation, few-shot and zero-shot learning, video tagging, multimodal pretraining, AI labeling, active learning, continued pretraining, and reinforcement learning.
Model-written summary · the original posting is authoritative