Tech Lead: Multimodal ML & Safety Systems

TikTok Inc.; San Jose (CA); On-site; USD 254,000 - 588,000; Full time

Job summary

TikTok Inc. is seeking a senior ML leader to advance the Trust & Safety Algorithms Team. You will own core system modules, guide ML engineers, and architect end-to-end pipelines across CV, NLP, LLM, and multimodal modalities to safeguard the platform.

You will drive production-ready solutions, experiment with advanced safety models, and collaborate with product, policy, and operations teams to meet evolving safety requirements at global scale.

Qualifications

• Master's or Ph.D. in Computer Science, Machine Learning, Artificial Intelligence, or a related field.
• 4+ years of hands-on experience in machine learning system development.
• Proven experience leading small technical teams or driving major ML modules end-to-end.
• Experience deploying large-scale ML models into production environments.

Responsibilities

• Own the design and delivery of a core system module within a key content safety vertical.
• Lead ML engineers to deliver high-quality, production-ready solutions with strong technical rigor.
• Architect and implement end-to-end ML pipelines, including data processing, model training, evaluation, deployment, and monitoring.
• Apply advanced CV/NLP/LLM techniques to solve real-world moderation challenges across video, image, text, and audio.
• Continuously improve model performance through data analysis, error diagnosis, feature engineering, and model innovation.
• Collaborate closely with cross-functional partners (product, policy, operations etc.) to ensure technical solutions align with evolving business and safety requirements.

Skills

Machine Learning

Leadership

Production ML

CV/NLP/LLM

Education

Master's or Ph.D. in CS/ML/AI

Job description

TikTok Inc. is seeking a senior ML leader to advance the Trust & Safety Algorithms Team. You will own core system modules, guide ML engineers, and architect end-to-end pipelines across CV, NLP, LLM, and multimodal modalities to safeguard the platform.

You will drive production-ready solutions, experiment with advanced safety models, and collaborate with product, policy, and operations teams to meet evolving safety requirements at global scale.