Senior Software Engineer, Traffic Platform

The Traffic Infrastructure Global Engineering (TIGE)-Traffic Platform team at Byte Dance builds and operates multi-cloud based large scale network services around the world that we use to accelerate and optimize network traffic for Tiktok and a variety of application services for Byte Dance internal customers, which include but are not limited to layer 4 load balancing, layer 4/7 acceleration, global ingress, CMAF, FaaS and WAF, etc.

By joining us, you can work within a brilliant team and learn how to build Tiktok scale network traffic platform which serves billions of users globally. To better support Tiktok, the TIGE- TP team is seeking experienced software engineers who can help improve and expand our multi-cloud based Cloud Native Traffic Platform. Responsibilities
• Design and develop features of traffic software (DNS Server, L4 and L7 Proxy, Web Caching, and FaaS Runtime), integrate based on our traffic platform to process terabyte-scale data in real-time
• Build data pipeline and develop telemetry systems to support data driven traffic control
• Develop API acceleration and other networking services that run on top of our multi-cloud based traffic platform
• Problem solving and performance tuning for online traffic
• Research new technologies for more efficient and scalable traffic processing

Minimum Qualifications:

• 3+ years experience in developing network systems in Rust, C, C++, and/or Go, strong developing skills in Linux environment.
• Master's degree (or Bachelor's degree with addtional 2+ years of experience) in Computer Science, Electrical Engineering, Computer Engineering or related majors.
• Familiarity with network protocols such as TCP/IP, HTTP/HTTPs, and DNS.
• Familiarity with Microservice architecture.
• Familiarity with container and orchestration technologies such as Docker and Kubernetes
• Strong understanding of software deployment fundamentals and automation.
• Good understanding of concepts in operating system, remote process communication, high availability etc.

Preferred Qualifications:

- Experience in building large scale network services on cloud ( AWS, GCP, OCI ).

- Experience in designing and developing high performance network loadbalancer products.

- Experience in developing proxy software such as Nginx and Envoy is a big plus.

- Experience in System Programming using low level system calls such as epoll, io-uring, etc., is a big plus.

- Experience in developing Web Caching software such as Apache Traffic Server and Varnish, etc.

- Experience in Edge Computing and FaaS Runtime development.

- Experience in building distributed or cloud service based management system - Proficiency in networking newer protocols such as HTTP2, HTTP3/QUIC, TLS
1.3, etc.