Software Engineer Intern (Data-TnS-Eng-Biz Arch)- 2025 Summer (PhD)

Responsibilities

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 its offices include New York, London, Dublin, Paris, Berlin, Dubai, Jakarta, Seoul, and Tokyo.

Why Join Us

Creation is the core of TikTok's purpose. Our platform is built to help imaginations thrive. This is doubly true of the teams that make TikTok possible.

Together, we inspire creativity and bring joy - a mission we all believe in and aim towards achieving every day.

To us, every challenge, no matter how difficult, is an opportunity; to learn, to innovate, and to grow as one team. Status quo? Never. Courage? Always.

At TikTok, we create together and grow together. That's how we drive impact - for ourselves, our company, and the communities we serve.

Join us.

We are the Algorithm Engineering Team from the Data-TnS department. As our name suggests, we are a diverse group committed to using our engineering skills to accelerate model iteration and production.

On the other hand, we utilize various tools to enhance the efficiency of integrating our models into our business scenarios.

Our team's goal is 'Let TnS's algorithmic capabilities cover wherever TikTok needs them.'

We are looking for talented individuals to join us for an internship in 2025. 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.

This Internship Program runs for 12 weeks beginning in May / June 2025. Successful candidates must be able to commit to one of the following summer internship start dates below :

Monday, May 12

Monday, May 19

Tuesday May 27 (Memorial Day May 26)

Monday, June 9

Monday, June 23

We will prioritize candidates who are able to commit to these start dates. Please state your availability clearly in your resume (Start date, End date).

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.

Candidates who pass resume evaluation will be invited to participate in TikTok's technical online assessment in HackerRank.

Responsibilities :

• Work closely with business teams to optimize the integration plan for algorithm applications, improve efficiency in evaluating and using algorithm applications across various business scenarios, and reduce the cost of managing and optimizing algorithm applications in different business scenarios.
• Be responsible for the architectural design, development, and performance tuning of algorithm applications, solving technical challenges such as high concurrency, high reliability, and high scalability.

Work includes multiple sub-areas : ML model training and evaluation, model optimization, model inference, model management, dataset management, workflow orchestration, etc.

• Responsible for the design and development of Machine Learning infrastructure for LLM / AIGC, etc
• Be responsible for researching and implementing cutting-edge engineering technologies related to LLM, NLP, CV.

Qualifications

Minimum Qualifications :

• Currently pursuing a Phd Degree in Software Development, Computer Science, Computer Engineering, or a related technical discipline.
• Familiar with one or two programming languages, such as C++, Go, or Python, and knowledgeable about CUDA or deep learning frameworks (such as PyTorch, Deepspeed, Megatron, vllm, etc.).
• Understanding of the principles of distributed systems, large-scale data processing, and parallel computing
• Interested and experienced in one or more of the following areas : machine learning, deep learning, computational acceleration, and performance optimization.
• Familiar with the ML Infrastructure of Large Model training and inference

Preferred Qualifications :

• Excellent programming skills, data structure and algorithm skills, proficient in C / C++ or Python programming language, candidates with awards in ACM / ICPC, NOI / IOI, Top Coder, Kaggle and other competitions are preferred.
• Research or industry experience in the field of machine learning, especially in large language models (LLMs) and generative artificial intelligence.
• Distributed training framework optimizations such as DeepSpeed, FSDP, Megatron, GSPMD
• Experiences in in-depth CUDA programming and performance tuning (cutlass, triton)
• Experience with evaluation of ML models, LLM application & agent development is desirable.
• Understanding cutting-edge LLM research and engineering (e.g., long context, multi modality, active learning, alignment research, agent ecosystem, etc.

and possess practical expertise in effectively implementing these advanced systems.

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 committed to providing reasonable accommodations in our recruitment processes for candidates with disabilities, pregnancy, sincerely held religious beliefs or other reasons protected by applicable laws.

If you need assistance or a reasonable accommodation, please reach out to us at https : / / shorturl.at / cdpT2