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Machine Learning Engineer - LLM Algorithm

AT TikTok
TikTok

Machine Learning Engineer - LLM Algorithm

San Jose, CA

Responsibilities

Team Introduction
The Experience team is responsible for optimizing app experience related to performance for TikTok users. This team collaborates with all teams in the video creation and consumption ecosystem to provide end-to-end optimization solutions.

Responsibilities
1. Optimize live streaming/RTC scenarios using machine learning/llm to enhance experience, cost efficiency, and resource allocation in multimedia upload, transcoding, and distribution pipelines, achieving multi-objective joint optimization and strategy coordination.
2. Build strategy datasets, identify issues through data analysis, define key metrics, deploy strategies, and continuously iterate based on new data distributions.

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3. Stay updated with the latest research (reinforcement learning/federated learning/causal inference) and continuously improve model accuracy and recall.

Qualifications

Minimum Qualifications
1. Master's degree or above in Computer Science or related fields preferred; prior experience in audio/video processing or network optimization is a plus.
2. In-depth understanding of live streaming/RTC architectures; prior optimization experience in live/RTC projects is preferred.
3. Proficient in C++/Python; strong expertise in machine learning, reinforcement learning, or causal inference is highly valued.

Preferred Qualifications
1. Strong sense of responsibility, curiosity, and excellent collaboration and communication skills, with the ability to accurately abstract problems and prioritize in complex technical scenarios.
2. Experience with learning-based model development is a big plus.
3.Excellent problem solving, data analysis, communication, and team work skills

Job Information

[For Pay Transparency] Compensation Description (annually)

The base salary range for this position in the selected city is $145000 - $355000 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.

Client-provided location(s): San Jose, CA, USA
Job ID: TikTok-7520412938869377288
Employment Type: Other

Perks and Benefits

  • Health and Wellness

    • Health Insurance
    • Dental Insurance
    • Vision Insurance
    • HSA
    • Life Insurance
    • Fitness Subsidies
    • Short-Term Disability
    • Long-Term Disability
    • On-Site Gym
    • Mental Health Benefits
    • Virtual Fitness Classes
  • Parental Benefits

    • Fertility Benefits
    • Adoption Assistance Program
    • Family Support Resources
  • Work Flexibility

    • Flexible Work Hours
    • Hybrid Work Opportunities
  • Office Life and Perks

    • Casual Dress
    • Snacks
    • Pet-friendly Office
    • Happy Hours
    • Some Meals Provided
    • Company Outings
    • On-Site Cafeteria
    • Holiday Events
  • Vacation and Time Off

    • Paid Vacation
    • Paid Holidays
    • Personal/Sick Days
    • Leave of Absence
  • Financial and Retirement

    • 401(K) With Company Matching
    • Performance Bonus
    • Company Equity
  • Professional Development

    • Promote From Within
    • Access to Online Courses
    • Leadership Training Program
    • Associate or Rotational Training Program
    • Mentor Program
  • Diversity and Inclusion

    • Diversity, Equity, and Inclusion Program
    • Employee Resource Groups (ERG)

Company Videos

Hear directly from employees about what it is like to work at TikTok.