Mobile Software Engineer Intern (TikTok-Social-Friend Interaction) - 2026 Summer (BS/MS)

Social Interaction team is mainly focusing on building a reliable and adaptive platform that enables users to meet and interact with their real-life friends seamlessly on TikTok, and encourage them to share their life moments with each other and stay connected regardless of where they are. Some core features and components we build and maintain include Story, Video Like, Comment, Friends Tab, Inbox Tab, Repost, TikTok Now feature and standalone app, etc. We seek talented individuals who enjoy the intersection of product, data, design, and engineering. As a Social team member, you'll help us improve the TikTok social experience and bring joy to hundreds of millions of users, every day.

We are looking for talented individuals to join us for an internship in 2026. 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. It runs for 12 weeks.

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 as early as possible. Please state your availability clearly in your resume (Start date, End date).

Summer Start Dates:
- May 11th, 2026
- May 18th, 2026
- May 26th, 2026
- June 8th, 2026
- June 22nd, 2026

Online Assessment
Candidates who pass resume screening will be invited to participate in TikTok's technical online assessment.

Responsibilities:
Responsibilities
- Create and refine high performance mobile apps that push the limits of mobile technology
- Work closely with our product team to conceptualize, develop, and launch new and innovative features
- Participate in the process of designing, architecting and implementing well-tested Objective-C software which powers social experiences in TikTok
- Promote robust and maintainable code, clear documentation, and deliver high-quality work on a tight schedule.