Research Scientist, World Models Graduate (Intelligent Creation) - Global Frontier Tech Recruit[...]

TikTok; San Jose (CA); On-site; USD 244,800 - 588,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

401(k) savings plan with company match

Paid parental leave

Short-term and long-term disability coverage

Life insurance

10 paid holidays per year

10 paid sick days per year

17 days of paid personal time

Job summary

TikTok is seeking a candidate for a role focused on multimodal models and large-scale training. This position requires a PhD in Software Development, Computer Science, or a related field, along with strong programming skills in Python or C++. The compensation ranges from $244,800 to $588,000 annually, complemented by extensive benefits including medical insurance, a 401(k) plan, paid parental leave, and more.

Qualifications

• Completing or recently completed a PhD in Software Development, Computer Science, Computer Engineering, or a related field.
• Excellent collaboration and interpersonal skills.
• Highly competent in algorithms and programming; strong coding skills in Python/C++.

Responsibilities

• Engage in post-training of multimodal models and LLM.
• Model performance improvement and hands-on experience in large-scale training.
• Optimize tool-calling and task capabilities of agentic foundation models.

Skills

Collaboration and interpersonal skills

Algorithms

Python/C++ programming

Education

PhD in Software Development, Computer Science, Computer Engineering, or related field

Job description

Overview

We are looking for talented individuals to join our team in 2027. As a graduate, you will have opportunities to pursue bold ideas, tackle complex challenges, and unlock limitless growth. Launch your career where inspiration is infinite at our Company.

Responsibilities

• Deeply involve in post‑training (SFT/RL) of Seed multimodal models and LLM.
• Participate in unified modeling for image and video generation, driving model performance improvements and gaining hands‑on experience in model iteration and large‑scale training.
• Apply agent technology and architecture, optimizing tool‑calling and long‑horizon task capabilities of agentic foundation models, and conduct in‑depth research on agentic RL.
• Develop large‑scale, diverse, and interactive multi‑modal data generation pipeline.
• Develop training pipeline for long‑context interactive video generation models.
• Advance video generation models to capture long‑horizon temporal consistency, realistic physical dynamics, object interactions, and causal relationships from large‑scale multi‑modal data.
• Explore new products with artificial intelligence technology at its core.

Qualifications

Minimum Qualifications:

• Completing or recently completed a PhD in Software Development, Computer Science, Computer Engineering, or a related technical discipline.
• Excellent collaboration and interpersonal skills.
• Highly competent in algorithms and programming; strong coding skills in Python/C++.

Preferred Qualifications:

• Experience in broad GenAI, multimodal foundation models, or Embodied AI areas.
• Demonstrated ability to communicate complex technical concepts and collaborate effectively within cross‑functional research teams.
• Proven track record of first‑author publications in prestigious venues including CVPR, ICLR, NeurIPS, SIGGRAPH, and ICML.

Job Information

Compensation: The base salary range for this position in the selected city is $244,800 – $588,000 annually. Compensation may vary outside of this range depending on a candidate’s qualifications, skills, competencies, and experience, as well as 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: 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.

Equal Opportunity Statement (CRSI/CA Fair Chance): 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. Criminal history may impact job duties such as interacting with clients, handling confidential information, and exercising sound judgment.