The TikTok R&D team is committed to conducting R&D work for TikTok's business, building and maintaining industry-leading products. By joining us, you will have access to core business scenarios including user growth, social networking, live streaming, e-commerce C-end, content creation, and content consumption, supporting the rapid development of the product in the global market; you will also encounter technical challenges in areas such as service architecture and basic technologies, ensuring that the business continues to serve users with high quality, efficiency, and security; at the same time, you will provide comprehensive technical solutions for different business scenarios, optimizing various product indicators and user experience. Here, there are top experts leading the team to continuously explore the frontier and break through the boundaries of imagination. Here, every line of code you write will serve hundreds of millions of users. 1. Design, develop, and evolve key fundamen...