siyu xing

I've delivered network engineering and operations work for China National Petroleum Pipeline Network Group, China Mobile, Trend Micro China R&D Center, and Jiangsu Guojun Information Technology.

At China National Petroleum Pipeline Network Group, I maintained WAN data center networks, optimized configurations and policies, managed office-network IT operations, and coordinated contractors, carriers, and third-party vendors.

I've implemented and supported network, security, and communications systems across data centers, offices, hospitals, factories, schools, and metro projects. My work includes fault monitoring and repair, network expansion, routing-policy changes, equipment deployment, cloud desktop support, and weak-current engineering coordination.

I work with TCP/IP, OSPF, BGP, MPLS, firewalls, IDS/IPS, Active Directory, Linux, and Windows Server, and I continue learning new technologies while solving practical network and security challenges.