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Research Scientist, LLM Pretraining; Seed-LLM

Job in San Jose, Santa Clara County, California, 95199, USA
Listing for: ByteDance
Full Time position
Listed on 2026-01-12
Job specializations:
  • IT/Tech
    Data Scientist
  • Research/Development
    Data Scientist
Salary/Wage Range or Industry Benchmark: 208800 USD Yearly USD 208800.00 YEAR
Job Description & How to Apply Below
Position: Research Scientist, LLM Pretraining (Seed-LLM)

Overview

Research Scientist, LLM Pretraining (Seed-LLM)

Established in 2023, the Byte Dance Seed team is dedicated to discovering new approaches to general intelligence and pursuing the edge of intelligence. Our research spans large language models, Gen Media, AI for Science, Robotics and more. With a long-term vision and determination in AI, the Byte Dance Seed team remains committed to foundational research. We aim to become a world-class AI research team that drives real technological progress and delivers societal benefits.

With labs across China, Singapore, and the U.S., our team has released industry-leading general-purpose large models and advanced multimodal capabilities, powering real-world applications including Doubao, Coze, and Jimeng.

Responsibilities
  • Identify applicable ideas for optimizing large models, and apply them across models of different scales to improve model performance.
  • Explore the boundaries of ultra-large-scale models and drive extreme system-level optimizations to enhance model capability and efficiency.
  • Lead efforts in data pipeline development, instruction tuning, preference alignment, and model optimization to improve model quality and adaptability.
  • Contribute to real-world applications across various domains, including creative generation, logical reasoning, code generation, and more.
  • Conduct in-depth research on future use cases of foundation models and expand the frontier of model applications.
  • Qualifications

    Minimum Qualifications

  • Strong coding ability with solid knowledge of data structures and fundamental algorithms; proficient in C/C++ or Python.
  • Excellent problem-solving skills, capable of diagnosing and resolving complex challenges in large model training and deployment.
  • Strong communication and collaboration skills, with the ability to explore new technologies and drive technical advancements with the team.
  • Preferred Qualifications

  • Familiarity with NLP or CV algorithms and techniques; candidates with strong research experience in related fields are preferred. Experience in large-scale model training or reinforcement learning (RL) is a plus.
  • Demonstrated leadership in high-impact projects or publications in the large-model domain is highly preferred.
  • About Doubao (Seed)

    Founded in 2023, the Byte Dance Doubao (Seed) Team is dedicated to pioneering advanced AI foundation models. Our goal is to lead in cutting-edge research and drive technological and societal advancements. Our research areas span deep learning, reinforcement learning, Language, Vision, Audio, AI Infra and AI Safety. Our team has labs and research positions across China, Singapore, and the US.

    Why Join Byte Dance

    Inspiring creativity is at the core of Byte Dance's mission. Our innovative products help people authentically express themselves, discover and connect. Our global, diverse teams make that possible. We strive to do great things with great people, foster curiosity and humility, and pursue meaningful breakthroughs for our company and users. Join us.

    Diversity & Inclusion

    Byte Dance is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people globally and our workplace reflects the communities we reach. We celebrate diverse voices and create an environment that reflects them.

    Reasonable Accommodation

    Byte Dance is committed to providing reasonable accommodations in our recruitment processes for candidates with disabilities, pregnancy, sincerely held religious beliefs or other reasons protected by applicable laws. If you need assistance or a reasonable accommodation, please reach out to us at

    Job Information

    For Pay Transparency:
    Compensation Description (Annually). The base salary range for this position in the selected city is $208,800 - $616,000 annually. Compensation may vary outside of this range depending on a candidate’s qualifications, skills, competencies and experience, and location. Base pay is one part of the Total Package; this role may be eligible for additional discretionary bonuses/incentives and restricted stock units. Benefits may vary by location and employment type.

    Employees have day-one access to medical, dental, and vision insurance, a 401(k) with company match, paid parental leave, short- and long-term disability coverage, life insurance, wellbeing benefits, among others. Paid holidays, sick days, and personal time are provided with 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 in accordance with federal, state, and local laws, including the Los Angeles County Fair Chance Ordinance and the California Fair Chance Act. Criminal history may impact job duties, including interactions with clients/colleagues, handling confidential information, and exercising sound judgment.

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