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Lead Data Scientist, Analytics (Multiple Positions)

TikTok.com

Office

San Jose, California, United States

Full Time

About TikTok
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 we also have offices in New York City, London, Dublin, Paris, Berlin, Dubai, Jakarta, Seoul, and Tokyo.

Why Join Us
Inspiring creativity is at the core of TikTok's mission. Our innovative product is built to help people authentically express themselves, discover and connect – and our global, diverse teams make that possible.
Together, we create value for our communities, inspire creativity and bring joy - a mission we work towards every day.
We strive to do great things with great people. We lead with curiosity, humility, and a desire to make impact in a rapidly growing tech company.
Every challenge is an opportunity to learn and innovate as one team. We're resilient and embrace challenges as they come.
By constantly iterating and fostering an "Always Day 1" mindset, we achieve meaningful breakthroughs for ourselves, our company, and our users.
When we create and grow together, the possibilities are limitless.
Join us.

About the Team
Our team plays a crucial role in ensuring the company’s success. We seek people who are willing to learn and put in the effort to solve problems. Our challenges are not your regular day-to-day problems - you’ll be part of a team that’s developing new solutions to new challenges. It’s working fast, at scale, and we’re making a difference. We are looking for talents to join us on this exciting journey!

Responsibilities
Use large and complex data to solve technical and statistical challenges and drive business impact.
Develop strategies to optimize the recommendation system.
Design metrics to measure product healthiness and drive data informed decisions on products.
Collaborate with engineers and product stakeholders to deliver product insights and strategy and influence the direction for improvement with analyses, experimentation, and other scientific methods.
Analyze user behavior data and adjust algorithms to improve user engagement and satisfaction.
Develop and implement strategies to identify and reduce the distribution of harmful content.
Prevent the concentration of similar content to enhance the diversity of the content ecosystem.
Mentor junior-level Data Scientists.

Lead Data Scientist, Analytics (Multiple Positions)

Office

San Jose, California, United States

Full Time

September 11, 2025

company logo

TikTok