Technology

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

Location
:

Singapore

Employment Type
:

Intern

Job Code
:

A13650

Responsibilities

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 world’s largest short video posting and delivery systems.
We’re not just keeping the lights on. We’re 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 we’ve 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

Qualifications

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 apac-earlycareers@tiktok.com

Job Information

About TikTok

TikTok 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 we also have offices in New York City, London, Dublin, Paris, Berlin, Dubai, Jakarta, Seoul, and Tokyo.

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Why Join Us

Inspiring creativity is at the core of TikTok's mission. Our innovative product is built to help people authentically express themselves, discover and connect – and our global, diverse teams make that possible. Together, we create value for our communities, inspire creativity and bring joy - a mission we work towards every day.

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We strive to do great things with great people. We lead with curiosity, humility, and a desire to make impact in a rapidly growing tech company. Every challenge is an opportunity to learn and innovate as one team. We're resilient and embrace challenges as they come. By constantly iterating and fostering an "Always Day 1" mindset, we achieve meaningful breakthroughs for ourselves, our company, and our users. When we create and grow together, the possibilities are limitless. Join us.

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Diversity & Inclusion

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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.