Senior Research Engineer, TikTok AI Search (LLM Pretraining/Alignment/Inference)

TikTok
San Jose, CA
Category Engineering
Job Description
The Senior Research Engineer will develop and apply cutting-edge machine learning technologies in real-time large-scale systems, serving billions of search requests every day. The role involves exploring and developing large-scale language models, optimizing enterprise applications, and collaborating with cross-functional teams to produce and apply new science to more responsibly develop and deploy large language models.

Requirements

  • Conduct research and develop state-of-the-art algorithms in various stages of the development of LLM, including continued pretraining, SFT, RLHF
  • Investigate and implement robust evaluation methodologies to assess model performance at various stages, unravel the underlying mechanisms and sources of their abilities, and utilize this understanding to drive model improvements
  • Using inference stage techniques such as RAG, CoT, Prompt Engineering to improve the model output
  • Improve the performance of AI Search in the TikTok app to provide better search experience for users

Benefits

  • Medical, dental, and vision insurance
  • 401(k) savings plan with company match
  • Paid parental leave
  • Short-term and long-term disability coverage
  • Life insurance
  • Wellbeing benefits
  • 10 paid holidays per year
  • 10 paid sick days per year
  • 17 days of Paid Personal Time (prorated upon hire with increasing accruals by tenure)
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