Staff Research Scientist/Engineer, Recommendation Systems

You will be joining our Applied Machine Learning team, a central team responsible for delivering state-of-the-art solutions powering our company's recommendations, ads, and search systems across various products such as TikTok, Douyin. We own the end-to-end ML lifecycle, from ideation and research to building, deploying, and iterating on models in production. We are looking for candidates who are passionate about solving complex problems and have a strong foundation in machine learning theory and practice.

Some of the projects we have been working on:
- Large Scale Recommendation Models
- End-to-End Generative Recommendation Systems
- Reinforcement Learning for User Personalization in Recommendation Systems

In this role, you will drive the next wave of innovation for our recommendation systems, directly shaping the user experience by:
- Build and scale up machine learning models for recommendation systems
- Research and apply multi-modal techniques (leveraging text, image, video) to create a holistic understanding of content and user preferences
- Pioneer new modeling strategies by researching and integrating long-term user behavior signals to drive sustained engagement and satisfaction, by using techniques such as reinforcement learning
- Partner closely with the infrastructure team to co-design and optimize next-generation recommendation model architectures and systems, ensuring high-performance, low-latency, and cost-efficient training and inference at a massive scale.
- Work hand-in-hand with product, engineering, and design teams to rigorously test and deploy end-to-end solutions, validating their impact and ensuring they create a seamless and enhanced user experience.

The base salary range for this position in the selected city is $187040 - $438000 annually.