Senior Software Developer, Routing Verification & Emulation

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 imaginations 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. Team Introduction 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 hyperscale 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. The SDN team builds cross-layer intelligence that enables hyper-scale datacenter interconnection. The team is responsible for developing traffic control and bandwidth management systems, network emulation and routing verification tools that empower highly available, efficient and scalable datacenter network infrastructure. Responsibilities We are looking for candidates with strong networking background and solid software development skills, who have a deep understanding in routing protocols and/or can utilize container techniques in emulating production networks to help operators maintain Bytedance's networking infrastructure safely and confidently. Responsibilities - Interact with network operation team to understand use cases and define specific requirements for network emulation; - Incorporate vendor-provided virtual images into containers for interactions like in production; - Convert production network configurations into the ones supported by virtual images; - Develop virtual networks to connect containers either on a single host or across multiple hosts to emulate a production-like topology; - Build scalable and fault-tolerant service to manage emulated networks with user-friendly interfaces; - Propose and integrate verification techniques to timely identify routing issues caused by mis-configurations; - Continuously improve performance and actively track and expand the usage scenarios for network emulation.

Minimum Qualifications - Bachelor degree or above in Computer Science , Electrical Engineering is preferred; Master or Ph.D with networking research experience is a plus. - Strong networking and distributed system background with solid understanding of routing protocols like BGP/ISIS/OSPF, network device configurations; experience in large scale networking system development is a plus; - 3 years hands on experience in container networking or in applying container techniques for network testing/emulation; deep understanding of operating system and virtualization is a puls; - Master of at least one of the mainstream coding languages including Python, Java, Rust, Scala, Go, C++, etc, and capability to read and understand others; - Great verbal and written communication skills. Preferred Qualifications - Master or Ph.D with networking research experience is a plus. - Hands on experience in container networking or in applying container techniques for network testing/emulation; deep understanding of operating system and virtualization is a plus ByteDance is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe and so does our workplace. At ByteDance, our mission is to inspire creativity and enrich life. To achieve that goal, we are committed to celebrating our diverse voices and to creating an environment that reflects the many communities we reach. We are passionate about this and hope you are too. ByteDance is committed to providing reasonable accommodations in our recruitment processes for candidates with disabilities, pregnancy, sincerely held religious beliefs or other reasons protected by applicable laws. If you need assistance or a reasonable accommodation, please reach out to us at https://shorturl.at/cdpT2