Machine Learning Engineer Intern (GenAI) - 2025 Summer (PhD)

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. About the Team The team is working on the next generation large language model-based applications. Our focus is on the artificial intelligence, leveraging our expertise to develop sophisticated AI algorithms that can understand, learn, predict, and significantly improve user experience. We aim to revolutionize the way we interact with machines, making them more intuitive and human-like than ever before. Driven by a commitment to excellence and a robust understanding of AI capabilities, we are pushing the boundaries of what's possible in language model-based applications. As an MLE Intern, you will be contributing to the development and optimization of our machine learning models. You will work closely with senior engineers and researchers to handle data processing, annotation analysis, and iterate on algorithm strategies to enhance our AI solutions. This role offers a unique opportunity to gain hands-on experience in the fast-paced field of AI and machine learning. 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 Applications will be reviewed on a rolling basis. We encourage you to apply early. 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. 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. - Develop and implement advanced algorithms for AI applications to drive exploration and application of cutting-edge technologies. - Improve natural language understanding, including intent recognition, structured/unstructured, characterization learning for short/long texts, etc. - Responsible for the full-stack development of large-scale machine learning systems and recommendation systems, exploring the personalized application of ultra-large-scale models. - Apply LLM-related techniques to explore information finding within large model-based AI applications. Qualifications Minimum Qualifications: 1. Currently enrolled in a PhD degree program in Computer Science, Engineering, Mathematics, or a related field with a focus on machine learning or artificial intelligence. 2. Graduating December 2025 onwards with the intent to return to degree program after the completion of the internship. 3. Able to commit to working for 12 weeks during Summer 2025. 4. Must obtain work authorization in country of employment at the time of hire, and maintain ongoing work authorization during employment. Preferred Qualifications: - Strong design and coding capability, able to deliver high quality design and code. - Strong analytical and problem-solving skills, ability to see the essence of the problem from complicated data. - Proficient in one or more algorithmic strategies, such as NLU, Recall, or Sort. Familiarity with the latest Large Language Model (LLM) technologies. - Experience in algorithm development such as large-scale search, recommendation, LLM system. 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 By submitting an application for this role, you accept and agree to our global applicant privacy policy, which may be accessed here: https://careers.tiktok.com/legal/privacy.