TikTok is the leading destination for short-form mobile video. Our mission is to inspire creativity and bring joy. TikTok has global offices including Los Angeles, New York, London, Paris, Berlin, Dubai, Mumbai, Singapore, Jakarta, Seoul and Tokyo.

Why Join Us
At TikTok, our people are humble, intelligent, compassionate and creative. We create to inspire - for you, for us, and for more than 1 billion users on our platform. We lead with curiosity and aim for the highest, never shying away from taking calculated risks and embracing ambiguity as it comes. Here, the opportunities are limitless for those who dare to pursue bold ideas that exist just beyond the boundary of possibility. Join us and make impact happen with a career at TikTok.

Our TikTok team is responsible for developing state-of-the-art machine learning models and strategies to improve user consumption experience, inspire creativity, build a fair and flourishing ecosystem.

1. Build industry leading recommendation system; develop highly scalable classifiers and tools leveraging machine learning;
2. Understand product objectives and machine learning techniques; improve model and recommendation strategy;
3. Understand user behavior and apply ML algorithms to optimize content consumption and production experience;
4. Understand content security strategy and apply ML algorithms to improve content audit process;
5. Work with cross functional teams to grow ByteDance product in important regional markets.