ResponsibilitiesTikTok 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 UsCreation 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 Multimedia Arch team is responsible for user experience optimization and cost optimization for the whole video on demand and live streaming system. We are building intelligence and personalized end-to-end multimedia systems to power the whole Tiktok ecosystem.We are currently seeking a passionate video algorithm engineer intern to join our team. In this role, you will collaborate with product and engineering teams to identify opportunities and improve overall system performance and efficiency by integrating video algorithms across the entire multimedia system. Your responsibilities will be implementing video streaming, network algorithms at large scales to optimize and improve user watching experience in the system.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 12Monday, May 19Tuesday May 27 (Memorial Day May 26)Monday, June 9Monday, June 23We 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.Online Assessment (Only for RD)Candidates who pass resume evaluation will be invited to participate in TikTok's technical online assessment in HackerRank.Responsibilities - Develop machine learning solutions for user behavior prediction, app traffic prediction, and video understanding. - Apply causal inference algorithms to understand users and improve user experience at Tiktok.- Work cross-functionally with product managers, data scientists, and product engineers to understand insights, formulate problems, design and refine machine learning algorithms, and further drive the exciting growth of global TikTok users.- Run regular A/B tests, perform analysis, and iterate algorithms accordingly.QualificationsMinimum Qualifications:- Currently pursuing an PhD in Software Development, Computer Science, Computer Engineering, or a related technical discipline- Able to commit to working for 12 weeks during Summer 2025;- Familiar with applied machine learning, such as classification, deep neural networks, transformers, multi-task learning, etc.- Proficient in at least one programming language, such as Python and C++.Preferred Qualifications:- Graduating December 2025 onwards with the intent to return to degree program after the completion of the internship.- Experience with recommendation systems, online advertising, search, and causal inference is preferred. Additional familiarity with LLM is a plus.- Experience in Deep Learning Tools such as tensorflow/pytorch.- Have a passion for learning and an eagerness to experiment with new techniques and good communication and a cooperative spirit.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/cdpT2Job Information【For Pay Transparency】Compensation Description Intern (hourly)The hourly rate range for this position in the selected city is $45- $75. We cover 100% premium coverage for Full-Time intern medical insurance after 90 days from the date of hire. Medical coverage only, no dental or vision coverage.Our time off and leave plans are: Paid holidays and paid sick leave. The sick leave entitlement is based on the time you join.We also provide mental and emotional health benefits through our Employee Assistance Program and provide reimbursements for your mobile phone expense. The Company reserves the right to modify or change these benefits programs at any time, with or without notice.For Los Angeles County (unincorporated) Candidates: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. Our company believes that criminal history may have a direct, adverse and negative relationship on the following job duties, potentially resulting in the withdrawal of the conditional offer of employment:1. Interacting and occasionally having unsupervised contact with internal/external clients and/or colleagues;2. Appropriately handling and managing confidential information including proprietary and trade secret information and access to information technology systems; and3. Exercising sound judgment.
