- Network administration: make sure network, internet and connections between offices and data centers running stable, smoothly and high availability. - Network security optimization.- Data Leakage Prevent.- Active Directory, group policy and users administration.- Microsoft Exchange Server 2010 mail system administration. - Maintain and administrative all hardware and infrastructure in Navigos Group. - Maintain VMWARE, XEN Citrix and Hyper-V virtual System.-… Show more - Network administration: make sure network, internet and connections between offices and data centers running stable, smoothly and high availability. - Network security optimization.- Data Leakage Prevent.- Active Directory, group policy and users administration.- Microsoft Exchange Server 2010 mail system administration. - Maintain and administrative all hardware and infrastructure in Navigos Group. - Maintain VMWARE, XEN Citrix and Hyper-V virtual System.- Microsoft Dynamics CRM, AX and Sharepoint deployment and administration. - Manage, backup and restore Microsoft SQL Server 2008 database.- Microsoft DPM backup system administration.- Web server administration.-File system administrator.- Keep the system under security with IPtables and Access Control List. - Team lead: hiring and develop team member. Achievements:- Office moving project in Ha Noi office.- Have idea and implement WAN network backup.- Give solution and migrate all email from Zimbra mail system to exchange mail system.- Deploy new open source monitoring system to save time about 99% for system daily checking.- Have idea, implement and apply ticketing system in IT service to improve service quality.- Green IT: Save Energy, Save money- Virtualization Project: moving almost system to virtual machine. Show less

- Administrate, configure and maintain the Windows and Linux Server.- Configure, manage and monitor the Domain controller, file servers. - Keep the system running safely.- Perform all aspects of the network's daily operation data backup, servers logs check, virus scan, files transfer, support to end user.- Mail system administration.- Prepare testing environment for developer team. - Monitor and maintain the Internet line, local network with secure connection.-… Show more - Administrate, configure and maintain the Windows and Linux Server.- Configure, manage and monitor the Domain controller, file servers. - Keep the system running safely.- Perform all aspects of the network's daily operation data backup, servers logs check, virus scan, files transfer, support to end user.- Mail system administration.- Prepare testing environment for developer team. - Monitor and maintain the Internet line, local network with secure connection.- Prepare and purchase the IT hardware, software, equipments.- Install and troubleshoot any problems of servers, workstation, software, Internet connection, telephone.- Managing company ’s inventory. Show less

- Local area network maintain, deployment and optimization.- Setup WAN connectivity to brands and agents.- Administrative servers for example: DNS server, DHCP server, files server, domain controller…- Operating and manage VPN server, distribute and manage VPN user, account.- Purchasing network devices: router, switch, modem… and Server, PC… by contact providers to make sure that the best quality and price.- Group Policy Management.- System operating and monitoring.