Software Engineer Intern Recommendation Infrastructure

Team Introduction:
The Recommendation Infrastructure Team is responsible for building reliable, efficient, flexible, and generic recommendation components, systems, and platforms. Our work supports the fast iteration and incubation of Tik Tok's recommendation products.

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

This internship provides students the opportunity to join one of our engineering teams where you will have the opportunity to:

• Build and maintain high performance online services for Tik Tok recommendation system.
• Build extremely efficient and reliable data pipelines for candidates generation, profile generation, training examples generation, realtime online training, etc.
• Work with your mentor to build globalized large-scale recommendation system.
• Design and develop high performance computing frameworks and storage systems.

• 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 Tik Tok and its affiliates' jobs globally. Applications will be reviewed on a rolling basis - we encourage you to apply early.

• Currently pursuing an Undergraduate/Masters degree in Software Development, Computer Science, Computer Engineering, or a related technical discipline.
• Experience in programming, included but not limited to, the following programming languages: C, C++, Java or Golang.
• Effective communication skills and a sense of ownership and drive.
• Must obtain work authorization in country of employment at the time of hire, and maintain ongoing work authorization during employment.

• Graduating December 2025 onwards with intent to return to degree-program after the completion of the internship.
• Demonstrated software engineering experience from previous internship, work experience, coding competitions, or publications.
• Demonstrated experience in one area of the following areas: personalized recommendations, search engine, machine learning, distributed storage system, big data frameworks is a plus.

【For Pay Transparency】Compensation Description (Hourly) - Campus Intern

The hourly rate range for this position in the selected city is $45- $60.

Benefits may vary depending on the nature of employment and the country work location. Interns have day one access to health insurance, life insurance, wellbeing benefits and more. Interns also receive 10 paid holidays per year and paid sick time (56 hours if hired in first half of year, 40 if hired in second half of year). Interns who are not working 100% remote may also be eligible for housing allowance.

The Company reserves the right to modify or change these benefits programs at any time, with or without notice.

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:

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