• Constructed the Active Directory, DNS, DHCP environment of the head office and five branch offices, and setup different GPOs according to the network requirements of different branch offices• Managed and updated ESXi servers’ version and policies, performing snapshots, cloning and vMotion for approximately 300 virtual servers• Built a Freeradius Enterprise Unified Authentication Platform authentication domain users for variety of enterprise application platforms• Based on Linux… Show more • Constructed the Active Directory, DNS, DHCP environment of the head office and five branch offices, and setup different GPOs according to the network requirements of different branch offices• Managed and updated ESXi servers’ version and policies, performing snapshots, cloning and vMotion for approximately 300 virtual servers• Built a Freeradius Enterprise Unified Authentication Platform authentication domain users for variety of enterprise application platforms• Based on Linux system, build a variety of VPN network platform include PPTP, L2TP, SSTP and IP-sec • Achieve secure network connection between head office and branch office using FortiGate firewall， AMAZON Cloud and CISCO firewall devices • Using PRTG, Nagios System Monitors the Operation of Network Equipment and Servers• Adjusted and optimized the company DFS system Show less

• Active Directory, Group Policies in Domain Environment and System Based Policies Configuration and management• Monitored, Maintained and troubleshoot Microsoft Exchange servers• Backup & Disaster Recovery Solution for physical and Virtual Environment • Assessed and Managed Dell SAN Storage• Deploy and design the Microsoft Deployment Kit 2012, Windows Assessment and Deployment Kit and Automatic install Windows 7 and Windows 8• Use Symantec Backup Exec for backup and… Show more • Active Directory, Group Policies in Domain Environment and System Based Policies Configuration and management• Monitored, Maintained and troubleshoot Microsoft Exchange servers• Backup & Disaster Recovery Solution for physical and Virtual Environment • Assessed and Managed Dell SAN Storage• Deploy and design the Microsoft Deployment Kit 2012, Windows Assessment and Deployment Kit and Automatic install Windows 7 and Windows 8• Use Symantec Backup Exec for backup and disaster recovery • Supported the clients with IT tickets. Support LIDOS, Baan, LISA, and other software• According to demand re-upgrade Microsoft System Center 2012(SCSM, SCCM, SCOM) Show less

• Designed and implemented Accounting system on IBM Power 6 server with SAN storage solutions, external storage arrays PowerHA disaster recovery, database backup tape library • Used Microsoft Hyper-V and VMware vSphere Hypervisor to design test environments and consolidate servers• Installation of Windows/ Linux Servers to support Oracle/MSSQL database • Defined and implemented improved corporate policies regarding the location, safety and security of servers and equipment… Show more • Designed and implemented Accounting system on IBM Power 6 server with SAN storage solutions, external storage arrays PowerHA disaster recovery, database backup tape library • Used Microsoft Hyper-V and VMware vSphere Hypervisor to design test environments and consolidate servers• Installation of Windows/ Linux Servers to support Oracle/MSSQL database • Defined and implemented improved corporate policies regarding the location, safety and security of servers and equipment. • Designed and implemented VPN technology on all branches, enhance corporation system security • Established and managed AD, Exchange, DHCP, WSUS, WDS, Antivirus and backup server Show less

• Monitored IT network traffic, quickly identified network problem to make the network availability for all users• Based on user characteristic setup DHCP, VLAN and NAT on cisco routers and switches to implement network access Maintained company Juniper Netscreen firewall, Cisco routers and switches to ensure the structural safety of the network, to ensure normal network requirements• Configured and managed windows, Linux servers, included Linux firewall, file server, DNS server… Show more • Monitored IT network traffic, quickly identified network problem to make the network availability for all users• Based on user characteristic setup DHCP, VLAN and NAT on cisco routers and switches to implement network access Maintained company Juniper Netscreen firewall, Cisco routers and switches to ensure the structural safety of the network, to ensure normal network requirements• Configured and managed windows, Linux servers, included Linux firewall, file server, DNS server, Postfix mail server• Administered over 500 workstations, printers, projectors, and servers, supporting company’s personnel via in-person, email, phone and remote assistance• Installed and maintained network availability and performance monitoring and notification system• Created and maintained Active Directory, Email system, Office Automatic system and file system user information Show less