Software Development Engineer in Test Intern (QA) - 2026 Start (BS/MS)

Team introduction: The TikTok Engineering Test Team focuses on testing and delivering innovative, high-quality product features of the TikTok as well as protecting user data. Our Mission is to facilitate the release of TikTok features and enhancements from the development to production stage through effective testing, delivering quality at speed. You will join the team and participate in quality assurance for Large Language Models (LLM) in various business scenarios. Together with engineering and algorithm teammates, you will refine the next-generation intelligent experience.

We are looking for talented individuals to join us for an internship in 2026. Internships at our Company aim to offer students industry exposure and hands-on experience. Watch your ambitions become reality as your inspiration brings infinite opportunities at our Company. 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 Our Company and its affiliates' jobs globally. Applications will be reviewed on a rolling basis - we encourage you to apply early. We support credit-bearing internship registration, subject to the intern's school requirements and company approval. Successful candidates must be able to commit to either of the following Internships

• From May to August (onboard by 11 May 2026)

Responsibilities

• Participate in quality assurance for TikTok’s Search LLM initiatives, and assist in building the quality system for large model applications.
• Take part in tool development for the industry-leading test team during the AI transformation across all testing phases.
• Work on quality and efficiency special projects based on LLM, including change control, automated testing, search effectiveness evaluation, and LLM security.
• Assist in investigating feasible optimization suggestions for existing quality and efficiency pain points of the engineering and algorithm teams, and drive the implementation of solutions to improve delivery quality and efficiency.
• Keep track of cutting-edge technologies related to large models and AIGC, explore new quality and efficiency solutions for quality assurance scenarios, and iterate continuously in practice.

Minimum Qualifications:

• Current undergraduate or graduate student, majors in Computer Science, Software Engineering, Information Technology or related fields are preferred. Internship duration shall be no less than 3 months.
• Understand basic software engineering and testing processes, have basic knowledge of common testing methods and tools. Course projects or practical testing/development experience is a plus.
• Possess a solid programming foundation, proficient in at least one programming language among Python/Go/Java/C++. Experience in developing automated testing scripts or tools is preferred.
• Have strong learning ability and innovation awareness, willing to proactively try new technologies and methods, and eager to solve complex problems in practice.

Preferred Qualifications:

• Have a strong interest in AIGC and large model fields, understand mainstream large model application scenarios. Experience in AI-related projects, model evaluation or test development is preferred.
• Demonstrate good communication, collaboration skills and sense of responsibility, able to cooperate efficiently with cross-functional teams to jointly ensure business quality.

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

If you have any questions, please reach out to us at [email protected]