Senior System / Network Engineer and Security Administrator highly qualified to design, install, and manage enterprise networks and their requisite security infrastructure. Experience managing server infrastructures and data-center operations across multiple platforms (UNIX, Linux, and Windows). Effectively plan, install, configure and optimize the IT infrastructure to consistently achieve high availability and performance. Highly qualified to design, install, and manage enterprise networks and their requisite security infrastructure. Skilled at configuring and troubleshooting an extensive range of network and security equipment: routers and switches, firewalls, UNIX and Windows servers, network management applications, routing protocols, WAN and wireless technologies, IP telephony.