Network Administrator

Mantech seeks a motivated, career and customer-oriented Network
Administrator
, to join our team in San Antonio, TX
.

The team delivers enterprise infrastructure capabilities for a global workforce performing a wide range of missions in defense of our Nation.

• Responsible for supporting customer networks involving cross-domain solutions, including VPNs, one-way data transfers, unclassified mission related infrastructures, and Taclane 175 encryption devices. Specific configurations include routing using MPLS/VPLS, OSPF, EIGRP at the Core and Distribution devices and switching at the Access devices.
• Responsible for performing planning, deployment and quality assurance functions for system and network upgrade projects.
• Will develop high, mid and lower-level diagrams and schematics to document the system and network infrastructure for planning, historical and continuity purposes.
• Responsible for designing, installing, configuring, troubleshooting and maintaining LAN/WAN equipment required to provide telecommunications services in a complex environment consisting of various Cisco network equipment to include Nexus and Catalyst model as well as Integrated Service Routers.
• Responsible for designing networks utilizing switching technology to include VLAN, Inter-VLAN routing, trunking, and port aggregation on the WAN/LAN environment.

• Bachelor’s degree with 12+ years of relevant experience OR associate degree with 15 years OR high school diploma with 20 years of relevant experience.
• Experience configuring and troubleshooting Cisco catalyst switches.
• Experience configuring and troubleshooting Cisco ASR routers.
• IAT II certification (DoD 8140 required within 60 days of starting employment. Acceptable certifications include CCNA‑Security/CySA+/GICSP/GSEC/Security+ CE/CND/ or SSCP).

• Experience with supporting cross-domain customer networks (VPNs, one-way data transfers, unclassified infra, Taclane 175), with expertise in Core/Distribution routing (MPLS/VPLS, OSPF, EIGRP) and Access switching.
• Experience with Linux network troubleshooting.

• Must have a current/active TS/SCI w/ Polygraph.

• Bending, carrying, kneeling, lifting, light work up to 20 lbs., reaching, repetitive motions, sedentary work, walking, working with data, ability to handle stress & work under pressure, ability to use MS Office, ability to use a PC, analytical or critical thinking skills, interpersonal & people skills, leadership skills, listening skills, multi-tasking ability, oral & written communication skills, organizational skills.