Research Scientist Intern, LLM – 2025 Summer Full-time

Responsibilities

TikTok is the leading destination for short-form mobile video. At TikTok, our mission is to inspire creativity and bring joy. TikTok’s global headquarters are in Los Angeles and Singapore, and its offices include New York, London, Dublin, Paris, Berlin, Dubai, Jakarta, Seoul, and Tokyo.

Why Join Us
Creation is the core of TikTok’s purpose. Our platform is built to help imaginations thrive. This is doubly true of the teams that make TikTok possible.
Together, we inspire creativity and bring joy – a mission we all believe in and aim towards achieving every day.
To us, every challenge, no matter how difficult, is an opportunity; to learn, to innovate, and to grow as one team. Status quo? Never. Courage? Always.
At TikTok, we create together and grow together. That’s how we drive impact – for ourselves, our company, and the communities we serve.
Join us.

The mission of the TikTok Eng-AI Innovation Center is to explore cutting-edge AGI technologies, including but not limited to LLM, multi-modal LLM (video/image/audio/text/code), etc., to let machine better understand user creations on Tiktok platform. Regarding video/image/audio/text, enhanced content understanding can bring better user experience of searching, recommendation, and can more accurately identify and defend internet abuse and fraud on our platform. Regarding code, developed LLM aims to automatically re-organize/optimize Tiktok codebase, and make the code/coding become more accessible for Tiktok engineers.
In short, our team is a foundation model LLM group in Tiktok, aiming to explore large-scale&multi-modal LLMs and optimize systems to the level of other advanced models, e.g., Gemini and GPT4o.

We are looking for talented individuals to join us for an internship in 2025. Internships at TikTok aim to offer students industry exposure and hands-on experience. Turn your ambitions into reality as your inspiration brings infinite opportunities at TikTok.

Internships at TikTok aim to provide students with hands-on experience in developing fundamental skills and exploring potential career paths. A vibrant blend of social events and enriching development workshops will be available for you to explore. Here, you will utilize your knowledge in real-world scenarios while laying a strong foundation for personal and professional growth. This Internship Program runs for 12 weeks beginning in May/June 2025. Successful candidates must be able to commit to one of the following summer internship start dates below:
Monday, May 12
Monday, May 19
Tuesday May 27 (Memorial Day May 26)
Monday, June 9
Monday, June 23

We will prioritize candidates who are able to commit to these start dates. Please state your availability clearly in your resume (Start date, End date).

Candidates can apply to a maximum of two positions and will be considered for jobs in the order you apply. The application limit is applicable to TikTok and its affiliates’ jobs globally. Applications will be reviewed on a rolling basis – we encourage you to apply early.

Responsibilities:
1. Participate in the research and development of cutting-edge algorithms, publish top international conferend
papers, and apply for patents.
2. Participate in the research of cutting-edge technologies such as large language models and multimodal larg
models, and accumulate experience in solving practical problems with cutting-edge technologies.
3. Provide rich computing and data resources, and a positive and progressive working atmosphere

Qualifications

Minimum Qualifications:
– PhD Degree with majors in artificial intelligence, computer science, automation, and mathematics or related fields
– Able to commit to working for 12 weeks during Summer 2025
– Solid foundation in data structure and algorithm design, proficient in one or more Python/C++, proficient deep learning frameworks such as pytorch and tensorflow.
– Strong sense of responsibility, active and proactive, good communication and teamwork skills.

Preferred Qualifications:
– Graduating December 2025 onwards with the intent to return to degree program after the completion of the internship.
– Have pre-training technology, including efficient training and packaging and deployment services, NLP, CV, video, multimodal and other related pre-training models and their downstream applications are preferred.
– Priority will be given to those who have published papers in top academic conferences and have won excellent results in competitions in the field of multimodaI, computer vision or machine learning.

TikTok is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe and so does our workplace. At TikTok, our mission is to inspire creativity and bring joy. To achieve that goal, we are committed to celebrating our diverse voices and to creating an environment that reflects the many communities we reach. We are passionate about this and hope you are too.

TikTok 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 https://shorturl.at/cdpT2