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TikTok · 2 weeks ago

Machine Learning Scientist Intern (TikTok-Content Ecology—LLM application) - 2026 Start (PhD)

United States

Internship

Remote

Intern

Start in 2026

TikTok is the leading destination for short-form mobile video. The Content Ecology Algorithm Team is seeking a Machine Learning Scientist Intern to contribute to AI innovations in LLMs, NLP, and Computer Vision, enhancing TikTok’s growth and user engagement through advanced algorithms and models.

Content CreatorsContent DiscoveryMedia and EntertainmentSocial MediaVideo

H1B Sponsor Likely

Responsibilities

Develop and optimize LLM, NLP, CV, and recommendation models to improve TikTok’s content ecosystem

Implement multimodal AI solutions, integrating video, text, and speech understanding

Optimize LLM-powered search, discovery, and content recommendation systems for better user engagement

Train and fine-tune deep learning models using TensorFlow, PyTorch, or other ML frameworks

Deploy and scale machine learning solutions in a distributed computing environment

Work closely with AI researchers, software engineers, and business teams to apply AI technologies effectively

Qualification

Machine LearningNatural Language ProcessingComputer VisionDeep LearningPythonTensorFlowPyTorchDistributed ComputingC++Publications in AI/ML

Required

PhD in Computer Science, Machine Learning, AI, or a related field

Strong programming skills in Python, C++, or similar languages

Hands-on experience with deep learning frameworks such as TensorFlow or PyTorch

Solid understanding of machine learning, NLP, CV, or recommendation algorithms

Preferred

Experience with distributed computing and optimizing AI models for real-world applications

Ability to apply machine learning techniques to enhance business and user experiences

Publications in top AI/ML conferences (NeurIPS, ICML, CVPR, ACL, etc.) or strong contributions to open-source AI projects

Benefits

Interns have day one access to health insurance

Life insurance

Wellbeing benefits

10 paid holidays per year

Paid sick time (56 hours if hired in first half of year, 40 if hired in second half of year)

Interns who are not working 100% remote may also be eligible for housing allowance

Company

TikTok

Glassdoor3.4

TikTok is a short-form video entertainment app and social network platform. It is a sub-organization of ByteDance.

Founded in 2003

Los Angeles, California, USA

10001+ employees

https://www.tiktok.com

H1B Sponsorship

TikTok has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)

Distribution of Different Job Fields Receiving Sponsorship

Represents job field similar to this job

Trends of Total Sponsorships

2025 (979)

2024 (601)

2023 (387)

2022 (322)

2021 (133)

2020 (72)