Machine Learning Scientist Intern (TikTok-Content Ecology—LLM application) - 2026 Start (PhD) jobs in United States
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TikTok · 2 weeks ago

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

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
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H1B Sponsor Likelynote

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

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)

Funding

Current Stage
Late Stage

Leadership Team

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N Ali Mohamed
CEO
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Blake Chandlee
VP Global Business Solutions
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Company data provided by crunchbase