Network Engineer

Key Responsibilities 1. Network Operations & Management • Configure, maintain, and optimize data center network infrastructure to ensure stability and high availability. • Manage switches, routers, firewalls, load balancers, and other network devices. • Monitor network performance and troubleshoot latency, packet loss, traffic anomalies, and connectivity issues. 2. Network Architecture & Maintenance • Support network architecture design, implementation, and optimization. • Perform regular network inspections, configuration changes, firmware upgrades, and preventive maintenance. • Maintain network security, access control, and related configuration standards. 3. Incident Response • Diagnose and resolve network incidents and service disruptions in a timely manner. • Conduct root cause analysis and prepare incident reports and corrective actions. • Support DDoS response, traffic management, and other network security incidents. 4. Documentation • Maintain network configurations, SOPs, change records, troubleshooting guides, and technical documentation. • Support continuous improvement of network operation and maintenance processes. Requirements • Bachelor's degree or above in Computer Networks, Information Security, Communication Engineering, or related fields. • 3+ years of network operations, data center, or infrastructure experience. • Strong knowledge of TCP/IP, OSPF, BGP, MPLS, VLAN, VXLAN, and related network technologies. • Hands-on experience with network equipment from Cisco, Huawei, H3C, Juniper, Ruijie, or similar vendors. • Familiar with firewalls and load balancing technologies such as Fortinet, Palo Alto, F5, or Nginx. • Basic Linux administration skills; Shell or Python scripting experience is preferred. • Strong troubleshooting and incident response capabilities. • Good communication and teamwork skills. • CCNP, HCNP/HCIP, JNCIP, or similar certifications are preferred. • Experience supporting GPU clusters, HPC, or large-scale data center environments is an advantage.