Active Directory Management

  • migrated network from NT4 based domain to Windows 2003 Small Business Server, Window 2003 SBS to Windows 2008 SBS, Window 2003 SBS to Windows 2o12 Essentials and so forth
  • upgraded AD Domains to Windows 2003, 2008, 2012 level
  • troubleshoot various AD and DNS replication Issues
  • created / configured optimized clients’ AD objects structure – i.e. users, groups, OUs, GPOs and logon scripts
  • created various AD Group Policies and scripts in order to centrally manage user roaming profiles, printers, firewall setting, MS office deployment, WSUS updates and so forth

Servers and OS Management

  • migrated Widows based servers to a new hardware
  • converted Widows based servers to a Virtual Machines: Hyperv & VMWare
  • built virtual environment using HyperV, VMWare and Terminal Services
  • setup virtual machines failover clusters
  • configured distributes file systems and namespaces
  • configured core network services /roles such as DHCP, DNS, WSUS, IIS, FTP, file, print, licensing and etc.
  • installed and configured various “line of business” client/server type of applications

Network Engineering

  • configure VPN links between headquarters and branch offices, configured static / dynamic routing between multiple sites
  • setup various access gateways, both hardware and software based, for secure remote access of corporate network resources
  • setup and configure various firewalls, routers, switches and wireless access points to provide secure Internet/Intranet connections for clients’ networks
  • configured bandwidth management rules (QoS) to prioritize / shape network traffic and achieve optimal performance of business applications
  • troubleshoot traffic “jams” using various network traffic analyze tools
  • installed voice/data cabling infrastructure, patch panels, server racks, KVMs and etc.

Messaging and Email Management

  • migrated email system from POP3/IMAP environment to various on-premise Exchange versions (2003, 2007, 2010, 2013)
  • upgraded Exchange 2003 organization on singe server to Exchange 2007 organization, including mail store server on Windows 2003 failover cluster, Transport, and Client Server on VM in Widows 2008 failover cluster; smart host in DMZ and continues standby replication to DR site
  • troubleshot various Exchange issues related to mail flow, security and SPAM control
  • migrated clients messaging system from POP3/SMTP to Google Apps
  • migrated clients messaging system from POP3/SMTP to hosted Exchange, Office 365
  • created centralized PST storage for roaming users using distributed file system
  • secure mailboxes with various anti-virus, anti-spam solutions from leading vendors
  • implemented various email backup and archiving schemes

Network Health Monitoring

  • deployed Microsoft System Center family of products
  • deployed network monitoring and management solution based on Spiceworks, Zabbix, GFI, PTRG and etc.
  • install and configured various Help Desk and Assets Management systems
  • created/ automated various IT maintenance tasks using shell scripts, resource kit tools/utilities and etc.
  • configured network monitoring tools, created “base line” performance logs
  • created detailed network journals and various documentation: logical and physical schemes, time lines, ip addressing tables, project implementation docs, user guides and tutorials,  licensing, vendors and contracts management