Job Description

Overview

Machine Learning Engineer Graduate Short Video Content Ecology - 2026 Start (PhD) TikTok

Join to apply for the Machine Learning Engineer Graduate Short Video Content Ecology - 2026 Start (PhD) role at TikTok.

We are looking for talented individuals to join our team in 2026. As a graduate, you will get opportunities to pursue bold ideas, tackle complex challenges, and unlock growth at TikTok. Successful candidates must be able to commit to an onboarding date by end of year 2026. Please state your availability and graduation date clearly in your resume.

Applications will be reviewed on a rolling basis; apply early.

Responsibilities

• The Content Ecology team aims to leverage AI and machine learning algorithms to build a suite of strategic models and platform solutions that enhance user experience across various sub-businesses under the short video business line.
• Focus areas include:
• TikTok Intelligent Customer Service: Utilizing large language models to address intelligent customer service and commercial customer service challenges.
• TikTok Local Services: Employing multimodal understanding technologies to solve content understanding and governance issues in local services.
• TikTok Search: Applying AI capabilities to provide hot event/topic discovery, event extraction, and summarization for the search business line.
• TikTok Creator Understanding: Developing multimodal creator modeling and profiling capabilities to support downstream recommendation, search, and content safety applications, enhancing the platform\'s understanding of creators\' behavior, styles, and influence.
• Agentic LLM Applications: Building agent-style LLM systems that can autonomously plan, act, and interact to solve complex user and business problems across domains such as customer service, search, and creator tools.

Qualifications

Minimum Qualifications

• PhD Degree in Computer Science or a related major.
• Programming and algorithmic skills with proficiency in Python or C++.
• Deep understanding in NLP, CV, LLM/MLLM, Search, or Agentic AI.
• Experience with TensorFlow, PyTorch, or other ML frameworks.
• Good teamwork and communication skills.

Preferred Qualifications

• Experience building ML models for large-scale consumer-facing applications.
• Domain expertise in NLP, CV, LLM/MLLM, Agentic LLMs, Dialog Systems, Search, Recommendation, or Creator Modeling.
• Published papers or hands-on project experience in NLP, CV, agent-based systems, or multimodal technologies.

Job Information & Benefits

The base salary range for this position in the selected city is $136,800 - $259,200 annually. Compensation may vary outside this range based on qualifications, skills, competencies, experience, and location. Base pay is part of the Total Package and may be eligible for bonuses, incentives, and restricted stock units. Benefits include medical, dental, and vision insurance from day one, a 401(k) with company match, paid parental leave, disability coverage, life insurance, wellbeing benefits, 10 paid holidays per year, 10 paid sick days per year, and 17 days of Paid Personal Time (prorated upon hire with tenure-based accruals). The Company may modify benefits at any time.

Other Notices

Los Angeles County (unincorporated) candidates: Qualified applicants with arrest or conviction records will be considered in accordance with all applicable laws, including the Fair Chance Act. Our company may consider criminal history as it relates to job duties such as client interaction, handling confidential information, and exercising sound judgment.

About TikTok

TikTok is the leading destination for short-form mobile video. Our mission is to inspire creativity and bring joy. Our global headquarters are in Los Angeles and Singapore, with offices worldwide.

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