Responsible for effective provisioning, installation/configuration, operation, and maintenance of systems hardware and software and related infrastructure.Assist project teams with technical issues in the Initiation and Planning phases of our standard Project Management Methodology.Perform daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes, reviewing system and application logs, and verifying completion of scheduled jobs such as backups.Install new / rebuild existing servers and configure hardware, peripherals, services, settings, directories, storage, etc. in accordance with standards and project/operational requirements.Perform ongoing performance tuning, hardware upgrades, and resource optimization as required. Configure CPU, memory, and disk partitions as required.Contribute to and maintain system standards.Research and recommend innovative, and where possible automated approaches for system administration tasks. Identify approaches that leverage our resources and provide economies of scale.

Providing administration of Microsoft Windows Servers, Microsoft Exchange Servers, Hyper-V Cluster, Microsoft Lync (Skype for Business) and Citrix, LAN/WAN/VPN and PABX system administration. Managing MS Active Directory, Group Policy, DNS, DHCP, IIS, WSUS, WDS, Printing Services, wireless access points and FTP servers. Providing configuration and administration of Cisco Routers, switches and firewalls.Evaluated and reconfigured company’s LAN & WAN setup, including AD sites distribution and splitting roles of the Exchange servers inside the organization.Planed, designed and implemented online migrations to new Microsoft Server Operating systems, including Microsoft Exchange, starting from Windows NT 4.0 and Exchange 5.5. Current level of organization Microsoft Windows 2012 R2 and Microsoft Exchange 2016.Planed, designed and implemented of Microsoft Skype for Business (Lync) installation with all major features for reducing companies travel and communication expenses. Interconnected with the Avaya, Siemens and Panasonic PABXs.Improved system security through setup and ongoing maintenance of Cisco PIX firewall.Researched, recommended and implemented network enhancements that improved system reliability and performance.Designed and implemented disaster recovery system based on Symantec BackupExec and HP robotic library.Designed and implemented Physical to Virtual environment conversion of all major systems with fault tolerance based on HP clustering solutions.Trained employees across multiple departments on network operations including login procedures, network management software, permissions, printing issues, security and use of software.

Provide and develop networking solutions to various clients. Configure, maintain various hardware/software products including: Microsoft Windows NT Servers / Workstations, Windows 2000 Professional / Server, MS Exchange 5.5 / 2000, MS Proxy 2.0, ARC Serve IT, Cisco routers / switches, Compaq servers / desktops / laptops.

Set up NT domains and configured relationship between the remote offices.Implemented multisided MS Exchange server 5.5 for organization, Installed and Configured MS Proxy Servers and managed Internet.Set up and installation Compaq Servers and Desktops.