(General Hire) Machine Learning Engineer Intern (Trust and Safety - CV/NLP/Multimodal LLM) - 2027 Summer

This internship offers hands-on experience, industry exposure, and opportunities to apply knowledge to real-world challenges while building a strong foundation for personal and professional growth. Interns will gain practical experience, explore potential career paths, and participate in social events, learning programs, and development workshops alongside industry professionals.

About the role

The algorithm team develops state-of-the-art computer vision, NLP, and multimodality models to protect our platform and users from content and behaviors that violate community guidelines and related regulations. As an intern, you will participate in developing cutting-edge content understanding models to improve the recognition of violated content on TikTok and optimize our distributed model training framework.

Responsibilities

• Leverage multimodal large models to explore few-shot and zero-shot strategies for content safety scenarios, and build moderation models with strong generalization capabilities.
• Participate in reinforcement learning–based data mining, and help design Chain-of-Thought (CoT) annotation frameworks to improve the model’s understanding of complex risks.
• Build risk ranking and recall systems to enhance coverage and accuracy in identifying high-risk content.
• Collaborate with product and policy teams to drive real-world deployment and performance optimization of moderation algorithms.

Requirements

• Currently pursuing a Master’s degree with a background in computer science, machine learning, or similar fields.
• Solid foundation in machine learning and deep learning; familiarity with multimodal modeling; hands-on experience with large model projects is a plus.
• Interest in content safety, with an understanding of the challenges in risk identification within moderation workflows.
• Proficient in end-to-end algorithm development, including data processing, modeling, and evaluation; experience with PyTorch or TensorFlow is required.
• Strong learning ability, clear communication, and a strong sense of teamwork and responsibility.

Pay

The hourly rate for this internship position is $45.

Benefits

• Day one access to health insurance, life insurance, and wellbeing benefits.
• 10 paid holidays per year and paid sick time (56 hours if hired in the first half of the year, 40 if hired in the second half).
• Eligibility for housing allowance if not working 100% remote.