About ByteDance Founded in 2012, ByteDance's mission is to inspire creativity and enrich life. With a suite of more than a dozen products, including TikTok, as well as platforms specific to the China market, including Toutiao, Douyin, and Xigua, ByteDance has made it easier and more fun for people to connect with, consume, and create content. * -- Why Join Us Creation is the core of ByteDance's purpose. Our products are built to help imagination thrive. This is doubly true of the teams that make our innovations possible. Together, we inspire creativity and enrich life - a mission we aim towards achieving every day. To us, every challenge, no matter how ambiguous, is an opportunity; to learn, to innovate, and to grow as one team. Status quo? Never. Courage? Always. At ByteDance, we create together and grow together. That's how we drive impact, for ourselves, our company, and the users we serve. Join us. * -- About the team ByteDance Networking brings together innovative ideas and technologies from network architecture, software defined networking (SDN), network virtualization, switch software and hardware co-design, and high-speed networking, to create hyper-scale data-center networking solutions that power several of the most popular apps of the world such as Douyin and TikTok which serve hundreds of millions of users around the globe. Network engineering SDN team, has been committed to the development and research in network traffic and routing control technologies and provide distributed software system to help manage and operate ByteDance's global network. Responsibilities * Design and develop server-side QOS marking and rate limit control system to cover multiple networks. * Operation for bandwidth enforcer over business's traffic and solve issues in production.