About the team

System Technology & Engineering team has been committed to the research and engineering development in the basic technology fields, such as operating system kernel and virtualization, construction and performance optimization of basic system software and library, stability and reliability assurance of large-scale data center, collaborative design of next-generation hardware and software, etc. Armed with comprehensive and solid software engineering capabilities, the team aims to guarantee day-to-day business operations of ByteDance Inc. Meanwhile, the team actively follows the new technology trend, and embraces open source communities and industry standards.

Responsibilities:

• Design and implement Linux kernel features to meet the business requirements;

• Debug complex, system-level, multi-component issues that typically span from kernel to application;

• Identify performance bottlenecks and drive optimizations across the entire software stack;

• Research and develop new technologies in operating system / Linux kernel.

Requirements

Basic Qualifications:

- Proficient in Linux kernel, at least familiar with one subsystem (CPU scheduling, file system, network, I/O, memory management, etc.);

- Experience working on system software in a large-scale C codebase, demonstrated knowledge of operating system internals on at least one platform;

- Experience with software development process including: source control, bug tracking, testing, and design documentation;

- Demonstrated experience working collaboratively with cross-functional teams.

Preferred Qualifications:

- Rich experience in Linux kernel debugging and upstream contribution;

- Experience in multi-platform (X86 / ARM / RISC-V) kernel and system development;

- Deep understanding of virtualization technology (Xen / KVM, etc.).