Network Operation Engineer, Physical Network Infrastructure

About the role

ByteDance Networking designs, builds and operates the global, intelligent network infrastructure behind services such as TikTok, aiming for high availability, scalability and performance. This Network Operation Engineer supports the day-to-day operations of the non-China region's network infrastructure and acts as a second-line (L2) partner to the 24/7 NOC, working with engineers across time zones.

Key responsibilities

• Act as a key engineer for global network incident response and operational stability, covering backbone, data center, public cloud, Edge/CDN and Network Gateway functions.
• Support daily operations of the non-China network infrastructure and respond to incidents and emergencies, leading troubleshooting, mitigation and service restoration.
• Partner with the 24/7 NOC team as an L2 operations engineer, collaborating across time zones for continuous global network operations.
• Work with network architecture, deployment and software engineering teams to improve operational tooling, monitoring platforms and automation.
• Coordinate with ISPs, vendors and internal teams to diagnose issues, run post-incident root cause analysis and drive remediation.
• Support network maintenance and change activities, including operational checks and post-change monitoring.

Required profile

• Bachelor's degree in Computer Science, Information Technology, Engineering, Mathematics or a related field, or equivalent practical experience.
• 5+ years of experience in network operations, network support or network engineering.
• Strong sense of ownership and the ability to troubleshoot and resolve network incidents, including during critical outages.
• Good communication skills and ability to collaborate across global teams.

Required skills

• Understanding of network protocols: TCP/IP, DHCP, BGP, OSPF/IS-IS and MPLS.
• Preferred: experience in large-scale data center networks, cloud infrastructure, OTT platforms or ISP environments; incident management and vendor coordination.
• Preferred: familiarity with network automation tools or scripting languages such as Python or Shell.