Infrastructure Engineer Intern
TikTok
Infrastructure Engineer Intern
TikTok
Short-form video platform with ads
Our Team is responsible for the design and development of the Recommendation and Search system architecture for TikTok. It ensures the stability and high availability of the system, optimizes the performance of online services and offline data streams, resolves system bottlenecks, and reduces cost overheads. The team also abstracts the common components and services of the system, builds the recommendation middle - office and data middle - office to support the rapid incubation of new products and enable ToB services. We are looking for talented individuals to join us for an internship. PhD internships at Our Company provide students with the opportunity to actively contribute to our products and research, as well as to the organization's future plans and emerging technologies. Our dynamic internship experience blends hands-on learning, enriching community-building and professional development events, and collaboration with industry experts. Applications will be reviewed on a rolling basis, so we encourage you to apply early. Please clearly state your availability in your resume (Start date, End date). Successful candidates must be able to commit to at least 3 months long internship period. Responsibilities - Conduct novel research on distributed training and inference system optimization for large-scale recommendation models and Large Language Models - Design and implement high-performance GPU kernel architectures and communication primitives to accelerate deep learning workloads - Publish original research findings at top-tier academic conferences and collaborate with cross-functional teams to translate research into production impact
Minimum Qualifications: - Currently pursuing a PhD in Computer Science, engineering or quantitative field - Strong programming skills in C++/CUDA/Python, with solid understanding of deep learning frameworks (PyTorch/TensorFlow) - Published research in systems, machine learning, or related areas at venues including SOSP, OSDI, NSDI, ICML, NeurIPS, ICLR, or equivalent conferences Preferred Qualifications: - Hands-on experience with distributed training frameworks (DeepSpeed, FSDP, Megatron-LM) or GPU kernel optimization - Experience with LLM inference/serving systems such as vLLM, TensorRT-LLM, or SGLang - Strong background in parallel computing, computer architecture, or machine learning systems 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
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.
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.
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.
Diversity & Inclusion
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.
TikTok is a short-form mobile video platform that lets people create, discover, and share quick videos. Users upload vertical clips, edit them with built-in tools, and browse a personalized feed powered by an algorithm that highlights relevant content. Advertisers can use in-feed ads, branded hashtags, and the Business Center to plan and measure campaigns, making it easy for brands to reach a global audience. Its goal is to inspire creativity and bring joy by helping people express themselves and by connecting brands with a wide audience.
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