New 
Network Engineer
 Quadrant, Inc. | |
 United States, Virginia, Arlington | |
 Mar 14, 2026 | |
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Network Engineer Arlington, VA Pay From: $110,000 per year MUST: Experienced Network Engineer Must have active TS/SCI 5 years of experience in network engineering experience Experience supporting the design, implementation, monitoring, and troubleshooting of enterprise network infrastructure, including LAN/WAN environments. Experience configuring and managing Cisco routers, Cisco switches, and Cisco Identity Services Engine (ISE) in enterprise environments. Ability to configure, monitor, and troubleshoot network infrastructure including routing, switching, access control lists (ACLs), VLANs, and network performance monitoring tools. Experience supporting network infrastructure in classified DoD environments with strict configuration control and change management procedures. Ability to coordinate with external organizations, vendors, and network operations centers to resolve infrastructure issues affecting operational systems. Sec+ certification required DUTIES: Perform network operations support, including planning, allocating, deploying, monitoring, and troubleshooting network infrastructure supporting JSSC managed systems. Configure and maintain enterprise network devices including Cisco routers, Cisco switches, and associated network infrastructure components supporting mission systems. Implement and maintain routing tables, VLAN configurations, and Access Control Lists (ACLs) to ensure proper network segmentation and secure communications. Monitor network performance using enterprise network management tools to identify anomalies, performance degradation, or outages affecting operational systems. Conduct troubleshooting and root cause analysis for network incidents impacting JSSC Command and Control (C2) systems. Coordinate with external organizations including Joint Service Provider (JSP), communications units, and equipment vendors to resolve network infrastructure issues. Evaluate and recommend network hardware or infrastructure upgrades to enhance reliability and performance of JSSC networks. Conduct stand-alone testing of new network equipment or upgrades in test environments prior to implementation within operational networks. Maintain daily network operations logs and weekly maintenance schedules documenting operational events, network changes, and maintenance activities. Support configuration control processes and follow established Change Advisory Board (CAB) procedures for network changes. Quadrant is an affirmative action/equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, status as a protected veteran, or status as an individual with a disability. "Healthcare benefits are offered to all eligible employees according to compliance mandated by the Affordable Care Act". | |