Machine Learning Scientist Graduate (TikTok Trust and Safety) - 2027 Start (PhD)

What you'll do

• Collaborate with product, engineering, and data science teams on safety strategy, model deployment, serving workflows, and data-driven solutions.
• Develop content-understanding techniques, including unimodal and multimodal classifiers, learning models, reinforcement learning models, and large language models.
• Continuously optimize the distributed model training framework.

What they ask for

• Completing or recently completed a PhD in computer science or a related discipline.
• Hands-on or academic experience in machine learning, large language models, recommendation systems, or related areas.
• Strong coding skills.
• Curiosity toward new technologies and entrepreneurship, with good communication and teamwork skills.

Tools

computer vision, NLP, Large Language Models, Reinforcement learning

AI focus

Develop content-understanding and multimodal models for identifying policy-violating content; optimize distributed model training and deploy models at scale.