This is an opening for a LAN/WAN Senior Network Engineer to support a Department of State (DoS) Bureau of Diplomatic Technology (DT) . This program provides transparent, interconnected systems and security supporting the DoS in successfully carrying out its U.S. foreign policy mission. The Operations Division provides enterprise operations and maintenance support primarily to the DoS's foreign networks around the world. SAIC's program is named "Vanguard" and is an IT consolidation consisting of the Department's domestic and foreign network switch, routers and WAN devices. This role will require at least 90 days onsite prior to allowing the hybrid schedule. The schedule is 3pm-11:30pm, Tuesday-Saturday. Description of Duties: Evaluates, designs, documents, installs, implements, tests, and performs problem isolation and resolution, and monitors, tunes, sets standards and maintains a range of network components and systems within the LAN/WAN environments at DoS posts and offices. Performs these functions across using COTS and GOTS tools to test/validate: physical media, Operating Systems, TCP protocol stacks, routing protocols, routed protocols and network hardware components primarily on Cisco devices. Provides client consulting, and training on the best practices and use of the DoS networks, tools, and architectures. Uses monitoring, performance analysis systems, network management software, and hardware management software to troubleshoot and isolate problems, gauge WAN and LAN performance and activity. Devises solutions to operational problems within the capacity and operational limitations of installed equipment. Provides internal consulting, technical guidance, information and support to other team within DoS such as: application developers, tools developers, management, and inter-division stake holders.