Site Reliability Engineer - System Service Global

Responsibilities

The Global System Service team owns the infrastructure services and management solutions that power Byte Dance's data centers outside of China — from day-to-day operations to long-term architecture design and maintenance. The team specializes in composing end-to-end solutions by drawing on both open-source community tools and in-house developed products, tailored to both the business requirements and the operational complexities of large-scale infrastructure across Byte Dance's non-China regions.

Our mission is to deliver efficient infrastructure solutions and a stable, secure system environment for Byte Dance's global business.

We are looking for a self-motivated system engineer that is equipped with SRE mindset and Dev Ops skills. Your responsibilities will include:

• Manage and maintain large-scale host infrastructure across Byte Dance's non-China data centers, covering OS lifecycle management, configuration standardization, and fleet-wide health monitoring.
• Own the reliability and availability of core data center foundational services, including DNS, NTP, DHCP, NAT, APT repository, and Kerberos authentication.
• Design and implement deployment architectures for foundational services, ensuring high availability, fault tolerance, and disaster recovery across regions.
• Develop and enforce SLOs for managed services; lead incident response, root cause analysis, and post-mortem reviews to drive continuous reliability improvements.
• Collaborate with network, security, and application teams to ensure foundational services meet the evolving demands of global business growth.
• Identify automation opportunities across host management and service operations; drive tooling and process improvements to reduce toil and increase operational efficiency.

Minimum Qualifications:

• Bachelor’s degree or higher in Electrical Engineering, Computer Engineering, Computer Science or related majors.
• Solid experience in large-scale Linux host management, including OS deployment, configuration management, patching, and fleet operations.
• Strong hands-on knowledge of core data center foundational services: DNS (BIND/PowerDNS), NTP, DHCP, NAT, APT repository management, and Kerberos.
• Proficiency with Dev Ops tooling, including configuration management tools (e.g., Ansible, Salt, Puppet) and CI/CD pipelines.
• Familiarity with SRE principles and practices, including SLO/SLI definition, error budget management, and blameless post-mortems.
• Solid understanding of high availability design patterns, active-active/active-passive architectures, and disaster recovery strategies.
• Strong troubleshooting skills across the Linux system stack and network layer.

Preferred Qualifications:

• Experience managing host fleets at scale (thousands of nodes or above) in a production environment.
• Scripting or development experience in Python, Go, or Bash for automation and tooling.
• Exposure to hybrid or multi-region data center environments.

Founded in 2012, Byte Dance's mission is to inspire creativity and enrich life. With a suite of more than a dozen products, including Tik Tok, Lemon8, Cap Cut and Pico as well as platforms specific to the China market, including Toutiao, Douyin, and Xigua, Byte Dance has made it easier and more fun for people to connect with, consume, and create content.

Inspiring creativity is at the core of Byte Dance's mission. Our innovative products are built to help people authentically express themselves, discover and connect – and our global, diverse teams make that possible. Together, we create value for our communities, inspire creativity and enrich life - a mission we work towards every day.

As Byte Dancers, we strive to do great things with great people. We lead with curiosity, humility, and a desire to make impact in a rapidly growing tech company. By constantly iterating and fostering an "Always Day 1" mindset, we achieve meaningful breakthroughs for ourselves, our Company, and our users. When we create and grow together, the possibilities are limitless. Join us.

Byte Dance is committed to creating an inclusive space where employees are valued for their skills,…