Data Center Network Engineer

This role involves managing network architecture, daily operations, fault response, security compliance, and documentation for data center and distributed systems. You will be responsible for setting up, configuring, and maintaining network infrastructure to ensure stability and high availability, while collaborating with multiple teams to optimize performance and security.

Key responsibilities

• Set up, configure, and maintain data center network to ensure network stability and high availability
• Participate in network architecture design, optimization, and implementation to improve network performance and security
• Configure, debug, and troubleshoot network devices such as switches, routers, firewalls, and load balancing devices
• Monitor network performance, analyze traffic anomalies, delays, and packet losses, and promptly troubleshoot and resolve issues
• Regularly inspect, maintain, and upgrade firmware of network equipment to ensure stable system operation
• Develop and implement emergency plans for network failures, quickly locate, analyze, and solve sudden failures
• Write network operation and maintenance documents, fault reports and solutions, and continuously optimize DevOps flow
• Formulate and implement corporate cyber security policies, ensuring data security, access control, and permission management
• Cooperate with the security team to handle security incidents such as network attacks, DDoS defense, and traffic cleaning
• Write and update DevOps flow, configuration changes, and operation manuals

About you

• Bachelor's degree or above, major in computer network, information security, communication engineering, or related field
• More than 3 years of experience in network operation and maintenance or data center operation and maintenance
• Familiar with TCP/IP protocol stack and network technologies such as OSPF, BGP, MPLS, VLAN, VXLAN
• Proficient in configuring and maintaining mainstream network equipment such as Huawei, Cisco, Ruijie, H3C, Juniper
• Familiar with load balancing devices (such as F5, Nginx), firewalls (such as Fortinet, Palo Alto) and other products
• Basic operation and maintenance ability of Linux system
• Good analytical and troubleshooting abilities, able to quickly locate and resolve network failures
• Good communication skills and teamwork spirit, able to work closely with development, product, and security teams
• Experience in large-scale distributed system/GPU cluster operation and maintenance preferred
• Proficiency in Shell, Python and other scripting languages preferred; relevant certifications such as CCNP, HCNP, JNCIP preferred
• Frequent oversea travel required.