Network operation and maintenance engineer (网络运维工程师)

Responsible for setting up, configuring and maintaining the data center network to ensure network stability and high availability.

Participate in network architecture design, optimization, and implementation to improve network performance and security.

Responsible for configuring, debugging, and troubleshooting 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.

Responsible for the formulation and implementation of 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.

Responsible for writing and updating DevOps flow, configuration changes, and operation manuals.

Job Requirements

Bachelor's degree or above, major in computer network, information security, communication engineering, etc.

More than 3 years of experience in network operation and maintenance or data center operation and maintenance, with experience in large-scale distributed system/GPU cluster operation and maintenance preferred.

Familiar with TCP/IP protocol stack, master network technologies such as OSPF, BGP, MPLS, VLAN, VXLAN, etc.

Proficient in configuring and maintaining mainstream network equipment such as Huawei, Cisco, Ruijie, H3C, Juniper, etc.

Familiar with the use and management of load balancing devices (such as F5, Nginx), firewalls (such as Fortinet, Palo Alto) and other products.

- Have the basic operation and maintenance ability of Linux system, and those who master Shell, Python and other scripting languages are preferred.

Possess good analytical and troubleshooting abilities, able to quickly locate and resolve network failures.

Possess good communication skills and teamwork spirit, able to work closely with development, product, and security teams.

Holding relevant certifications such as CCNP, HCNP, JNCIP, etc. is preferred.

Candidates with experience in GPU cluster operation and maintenance are preferred.