Drimva

TikTok

Research Scientist - LLM Applications on Search/Ads/Recommendation - Global Frontier Tech Recruitment Program - 2027 Start (PhD)

San Jose, California · Full-time · Posted Oct 28, 2026

Education
PhD in Software Development, Computer Science, Computer Engineering, or a related technical discipline.

About the job

Develop high-performance, scalable infrastructure and large-model systems for TikTok’s search, advertising, and recommendation services.

What you'll do

  • Build and maintain online services for recommendation and search products.
  • Develop efficient data pipelines for candidate and profile generation, training data, and real-time online training.
  • Design high-performance computing frameworks and storage systems for large-scale recommendation.

What they ask for

  • Completing or recently completed a PhD in Software Development, Computer Science, Computer Engineering, or a related technical discipline.
  • Research background in ML/AI focused on inference optimization, model acceleration, or efficient ML systems.
  • Programming experience in one or more of C, C++, Java, or Python.
  • Problem-solving skills, self-driven learning, and effective communication.

Nice to have

  • Ability to translate research into practical system implementations.
  • Academic or practical experience in advertising or recommendation systems, search, distributed systems, or big data processing.

Tools

C, C++, Java, Python

AI focus

Develop efficient, stable, scalable large-model solutions for search, advertising, and recommendation, including inference optimization, model acceleration, efficient ML systems, and multimodal data processing.

Model-written summary · the original posting is authoritative

First seen Oct 28, 2026 · Last verified Nov 6, 2026 (UTC)