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Tik Tok

Model Infra Engineer Intern (Tik Tok Recommendation Architecture) - 2026 Start (BS/MS)

3+ months ago• Singapore
Viewed on February 1, 2026
Apply on company site

About Us

Tik Tok is the leading destination for short-form mobile video and our mission is to inspire creativity and bring joy.

• Size: 5001-10000 employees
• Industry: Entertainment & Gaming, Social Media, Technology

View Company Profile:

Responsibilities:

Team Introduction
The Recommendation Architecture team is responsible for building up and optimizing our recommendation system's architecture to provide the most stable and best experience for our users. We are looking for highly motivated Interns who are passionate about optimizing Large Language Models (LLMs) and large-scale recommendation models.

We are looking for talented individuals to join us for an internship in from Sept. 2025 onwards. Internships at Tik Tok aim to offer students industry exposure and hands-on experience. Watch your ambitions become reality as your inspiration brings infinite opportunities at Tik Tok.

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.
Successful candidates must be able to commit to at least 3 months long internship period.

Responsibilities:

• Optimize model performance and memory efficiency on GPU-based systems.
• Collaborate with research and infra teams to deploy high-throughput training and inference pipelines.
• Develop tools and libraries to accelerate deep learning workloads at scale.
• Analyze system performance (e.g. GPU profiling, kernel analysis, throughput tuning).

Qualifications:

Minimum Qualifications:

• Undergraduate, or Postgraduate who is currently pursuing a degree/master in Computer Science, EE, or related field.
• Familiarity with deep learning and frameworks like Py Torch or Tensor Flow. And understanding of GPU basics (memory hierarchy, compute kernels).
• Programming experience in Python/C++/CUDA/Trition is a plus.

Preferred Qualifications:

• Course or project experience with LLMs or recommender systems.
• Exposure to CUDA, NCCL, or deep learning compiler stacks (e.g. XLA, TensorRT).
• Publications or open-source contributions are a bonus.

By submitting an application for this role, you accept and agree to our global applicant If you have any questions, please reach out to us at apac-earlycareers@tiktok.com

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Perks and Benefits

Health and Wellness

• Health Insurance
• Dental Insurance
• Vision Insurance
• HSA
• Life Insurance
• Fitness Subsidies
• Short-Term Disability
• Long-Term Disability
• On-Site Gym
• Mental Health Benefits
• Virtual Fitness Classes

Parental Benefits

• Fertility Benefits
• Adoption Assistance Program
• Family Support Resources

Work Flexibility

• Flexible Work Hours
• Hybrid Work Opportunities

Office Life and Perks

• Casual Dress
• Snacks
• Pet-friendly Office
• Happy Hours
• Some Meals Provided
• Company Outings
• On-Site Cafeteria
• Holiday Events

Vacation and Time Off

• Paid Vacation
• Paid Holidays
• Personal/Sick Days
• Leave of Absence

Financial and Retirement

• 401(K) With Company Matching
• Performance Bonus
• Company Equity

Professional Development

• Promote From Within
• Access to Online Courses
• Leadership Training Program
• Associate or Rotational Training Program
• Mentor Program

Diversity and Inclusion

• Diversity, Equity, and Inclusion Program
• Employee Resource Groups (ERG)

Company Videos

Hear directly from employees about what it is like to work at Tik Tok.
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