TikTok is looking to improve its search engine to provide users with the best search experience by building a full-stack search engine system and combining information retrieval technology with modern machine learning methods.
Requirements
- Proficient coding skills and strong algorithm & data structure basis
- Experience in one or more of the following areas: NLP, Ranking, Ads, search engine, recommender system, distributed system, and machine learning
- Currently pursuing a Bachelor's or Master's in Software Development, Computer Science, Computer Engineering, or a related technical discipline
- Demonstrated software engineering experience from previous internship, work experience, coding competitions, or publications
- High levels of creativity and quick problem-solving capabilities
- Familiarity with LLM, NLP, CV, and recommender system
- Strong understanding of information retrieval technology and modern machine learning methods
Responsibilities
- Participate in the improvement of the search core algorithm
- Content understanding: Applying the industry's cutting-edge NLP and CV technology and leveraging LLM to match the most relevant videos for each search query
- User Behavior Modeling: solving the recommendation problem in search
- Video understanding: comprehensive use of NLP, CV, as well as LLM for better video understanding
- Improving the relevance of TikTok search
- Increasing the ability of personalization on the basis of 'relevant'
- Understanding users better
Other
- Must be able to commit to a 12-week full-time work period during Summer or Fall 2026
- Must obtain work authorization in country of employment at the time of hire, and maintain ongoing work authorization during employment
- Effective communication and teamwork skills
- Graduating December 2026 onwards with intent to return to degree-program after the completion of the internship
- Ability to work in a fast-paced environment and adapt to changing priorities
