TikTok will be prioritizing applicants who have a current right to work in Singapore, and do not require TikTok's sponsorship of a visa. 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, Singapore, Jakarta, Seoul and Tokyo. Why Join Us Creation is the core of TikTok's purpose. Our platform is built to help imaginations thrive. This is doubly true of the teams that make TikTok possible. Together, we inspire creativity and bring joy - a mission we all believe in and aim towards achieving every day. To us, every challenge, no matter how difficult, is an opportunity; to learn, to innovate, and to grow as one team. Status quo? Never. Courage? Always. At TikTok, we create together and grow together. That's how we drive impact - for ourselves, our company, and the communities we serve. Join us. About the Team E-commerce is a new and fast growing business that aims at connecting all customers to excellent sellers and quality products on TikTok Shop, through E-commerce live-streaming, E-commerce short videos, and commodity recommendation. Our E-ecommerce Recommendation Infra team is responsible for building up and optimizing the infrastructure for such recommendation systems, so as to provide the most stable and best experience for our users. We work closely with applied machine learning engineers and build scalable systems to support all kinds of innovative algorithms and techniques. Responsibilities - Build and maintain high performance online services for TikTok recommendation system - Build extremely efficient and reliable data pipelines for candidates generation, profile generation, training examples generation, realtime online training, etc - Build globalized large-scale recommendation system - Design and develop high performance computing frameworks and storage systems - Research, design, and develop computer and network software or specialised utility programs - Analyse user needs and develop software solutions, applying principles and techniques of computer science, engineering, and mathematical analysis - Update software, enhances existing software capabilities, and develops and direct software testing and validation procedures - Work with computer hardware engineers to integrate hardware and software systems and develop specifications and performance requirements