Backend Software Engineer Intern (Reliability) - 2026 Start (BS/MS)

Team Introduction Every time someone uploads, or watches a short video on TikTok, our team is working behind the scenes to make it happen — smoothly, instantly, and reliably. The Short Video Reliability team is where software engineering meets site reliability, and we run the worlds largest short video posting and delivery systems.

Were not just keeping the lights on. Were building systems that adapt to anything: a sudden viral trend, a massive global event, a data center switch, or a rare disaster scenario. If something big happens on TikTok, chances are weve prepared for it.

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. Watch your ambitions become reality as your inspiration brings infinite opportunities at TikTok.

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.

Successful candidates must be able to commit to at least 3 months long internship period. Successful candidates must be able to commit to either of the following Internships

• From January to June (onboard by 12 Jan 2026)
• From

May to August (onboard by 11 May 2026) Responsibilities:

• Design and build systems that adjust on the fly to infrastructure changes, data center moves, and global events
• Create smart traffic management that can handle viral video surges without breaking a sweat
• Build tools to spot and fix issues before they reach users
• Keep TikTok running smoothly across continents and time zones
• Develop systems for mapping, capacity planning, disaster recovery, and incident automation
• Test our systems with chaos engineering so they can handle anything thrown at them
• Use A/B testing to measure real-world improvements in stability, performance, and user experience

Minimum Qualifications:

• Undergraduate or Postgraduate in Software Development, Computer Science, Computer Engineering, or similar
• Solid coding skills in at least one of Python, Java, Golang, C++, or C
• Understanding of distributed systems, networking, and large-scale architecture
• Experience with Linux/Unix and cloud environments
• A genuine passion for building reliable, high-scale systems

Preferred Qualifications:

• Open-source contributions or competitive programming experience
• Research or internship experience in distributed/high-availability systems
• Ability to debug complex issues under pressure
• Great communication skills and comfort working with global teams

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 ***************@tiktok.com

Information :

• Company : TikTok
• Position : Backend Software Engineer Intern (Reliability) - 2026 Start (BS/MS)
• Location : Singapore
• Country : SG