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Jobs · Business Development · California

Lead Researcher, Large Language Models/LLM, TikTok

TikTok · San Jose, CA · 4 wk ago
On-siteBusiness Development$308k–$588k/yrFull-time

About the role

The Foundations and Intelligence Service R&D team at TikTok is focused on developing state-of-the-art foundation models like LLM, VLM, and Omni Models. Our mission is to integrate these models into various business scenarios, enhancing user experiences through content moderation, search, and recommendation systems.

Responsibilities

  • Lead the incubation of next-generation, high-capacity LLM solutions for TikTok business, identifying and defining both short and medium-term objectives;
  • Design methods, tools, data recipes, and experiments to advance the state-of-the-art in large language models;
  • Explore new model architectures and inference-efficient designs for LLM applications to scale business impact;
  • Work closely with cross-functional teams to plan and implement projects leveraging LLMs for diverse purposes and vertical domains;
  • Extend insights and impact from industry to academia.

Qualifications

  • Ph.D in Computer Science, Data Science, Artificial Intelligence, or a related field;
  • Proficiency in programming languages such as Python, Rust, or C++, and a track record of working with deep learning frameworks (e.g., PyTorch, DeepSpeed, Megatron, VLLM, etc.);
  • Excellent problem-solving skills and a creative mindset to address complex AI challenges;
  • Demonstrated ability to drive research projects from idea to implementation, producing tangible outcomes;
  • Published research papers or contributions to the LLM community would be a significant plus;
  • Experience with inference tuning and inference acceleration;
  • A strong understanding of GPU and/or other AI accelerators, experience with large-scale AI networks, PyTorch 2.0 and similar technologies;
  • Experience with evaluation of AI systems, LLM application & agent development is desirable;
  • A strong understanding of distributed computing frameworks & performance tuning and verification for training/finetuning/inference;
  • Experience with PEFT, RL, MoE, CoT, or Langchain is a plus.

About TikTok

TikTok is the leading destination for short-form mobile video. Our global headquarters are in Los Angeles and Singapore, with offices in New York City, London, Dublin, Paris, Berlin, Dubai, Jakarta, Seoul, and Tokyo. We strive to inspire creativity and bring joy to our communities every day.

Why Join Us

We believe in creating a space where everyone feels valued for their unique perspectives. Our commitment to diversity and inclusion ensures that our workplace reflects the many communities we serve. We are dedicated to fostering an environment where creativity and innovation thrive, and we encourage you to join us in making a difference.

Job Information

[For Pay Transparency] Compensation Description (Annually): The base salary range for this position in the selected city is $308,000 - $588,000 annually. Compensation may vary outside of this range depending on a number of factors, including a candidate’s qualifications, skills, competencies, and experience, and location. Base pay is one part of the Total Package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary bonuses/incentives, and restricted stock units. Benefits may vary depending on the nature of employment and the country work location. Employees have day one access to medical, dental, and vision insurance, a 401(k) savings plan with company match, paid parental leave, short-term and long-term disability coverage, life insurance, wellbeing benefits, among others. Employees also receive 10 paid holidays per year, 10 paid sick days per year, and 17 days of Paid Personal Time (prorated upon hire with increasing accruals by tenure).

The Company reserves the right to modify or change these benefits programs at any time, with or without notice. For Los Angeles County (unincorporated) Candidates: Qualified applicants with arrest or conviction records will be considered for employment in accordance with all federal, state, and local laws including the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. Our company believes that criminal history may have a direct, adverse and negative relationship on the following job duties, potentially resulting in the withdrawal of the conditional offer of employment: 1. Interacting and occasionally having unsupervised contact with internal/external clients and/or colleagues; 2. Appropriately handling and managing confidential information including proprietary and trade secret information and access to information technology systems; and 3. Exercising sound judgment.

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