Data Science Intern – Machine Learning

Job Description

Data Scientist Intern (TikTok UG-Mid Platform) – 2026 Summer (BS/MS) | TikTok

The Tone:
This is a US-based internship at TikTok, with potential for in-person work in a selected city, including Los Angeles County. TikTok is a leading platform for short-form mobile video, aiming to inspire creativity and bring joy. This role contributes to generating actionable insights from data, helping stakeholders make informed decisions, and providing students with fundamental skills and career path exploration. The internship focuses on real-world scenarios to build a strong foundation for personal and professional growth.

The TL;DR
• Role: Internship
• Type: Temporary (12 weeks)
• Location: In-person, US (specific city not listed, Los Angeles County noted for legal purposes)
• Pay: $35 hourly
• Team: TikTok-Data Science Team
• Mission: Optimize user value and behavior prediction models using data science techniques to drive data-driven decision-making.
• Tech Stack: Excel, SQL, Python, R, Tableau, Power BI, Think-Cell

What You’ll Actually Do
• Model Development: Participate in the construction and optimization of long-term user value (LTV) models and other user behavior prediction models.
• Data Mining: Use machine learning, deep learning, and other techniques for data mining, and optimize user portraits and behavior analysis.
• Experimentation: Design A/B tests and other causal inference methods to evaluate model performance and promote its implementation in business scenarios.
• Data Quality: Process and clean massive amounts of data, build high-quality datasets, and improve overall data quality.
• Cross-functional Collaboration: Collaborate with product and data engineering teams to promote the implementation of data-driven decision-making.

The Must-Haves
• Background: Currently pursuing an undergraduate or graduate degree in a quantitative field such as mathematics, statistics, economics, or computer science.
• Experience: Previous internship or project experience in business analysis or data-related roles, with demonstrated ability to analyze data and generate actionable insights. Ability to commit to a 12-week summer internship.
• Skills: Familiarity with data processing, analytical methodologies, A/B testing design, and model performance evaluation. Strong problem-solving abilities and attention to detail.
• Bonus: Experience in the ads or marketing industry. Familiarity with Excel, SQL, Python, R, Tableau, Power BI, or Think-Cell. Business-level English proficiency with strong verbal and written communication skills.