• Responsible for IT infrastructure construction planning and management. o Improve internal operation and team-maintenance.o In charge of team-building and technical-planning of the team’s work.o Responsible for company’s personal IT resource management.o Responsible for damage-repair of network operation, storage and operating system. • Responsible for the company’s new data center construction and relocation.Utilization Cisco N9K/N2K/HUAWEI OSN 1800 etc, built new datacenter and completed server and database(oracle) migration.• Optimized and replaced the data network and security devices. Utilized Palo Alto 3020 instead Hillstone FW as the INTERNET FW.Utilized Fortinet 1800/Hillstone 3000/Cisco N9K etc, built Zone isolation FW and core Switch instead FW CheckPoint 4507.Utilized SANGFOR SSL VPN to built SSL VPN system• Responsible for all the information security management of the company, led the team to complete the general security system. Conducted daily security assessment,. • Conducted maintenance on company’s management system as well as 300+ production servers and operating system including Windows and Linux. • Configuration, troubleshooting and maintenance of router, H3C network switch, firewall, Network manage software(solar wind). • Configured and managed DNS,VPN, AC, AF.• Worked Cisco UCS 6.0 IP telephone configuration management• maintenance of Polocom video conferencing system.