Your Rohde & Schwarz recruiting team is looking forward to receiving your application.
Recently named by Newsweek as one of the Best American Mid-Sized Workplaces in 2026, Rohde & Schwarz is seeking an experienced Senior Network Administrator for our System Engineering organization to support a large air traffic control government program deploying voice communication systems. The work location for this position is split between our Columbia/Frederick, MD office locations, averaging 3 days per week on site and 2 days per week working from home.
The Senior Network Administrator is responsible for the design, configuration, administration, and sustainment of mission-critical Voice Communication System (VCS) network infrastructure. Operating at a level comparable to a Cisco Certified Network Professional (CCNP) or similar, this role provides technical leadership for Cisco Catalyst 9300 switching environments, ensuring secure, reliable, and high-availability network operations in support of customer and operational requirements. US citizenship is a customer requirement for this role.
Your tasks
- Lead the configuration, deployment, and administration of Cisco Catalyst 9300 switching infrastructure.
- Design and implement Layer 2 and Layer 3 network solutions, including VLANs, routing, QoS, redundancy, and security controls.
- Manage network performance, availability, and lifecycle activities, including software upgrades, patching, and configuration management.
- Troubleshoot complex network, switching, and connectivity issues across operational environments.
- Implement and maintain network security controls, including ACLs, multicast, 802.1X, port security, and device hardening.
- Develop and maintain network architecture diagrams, configuration baselines, and technical documentation.
- Support VCS integration, migration, modernization, and sustainment activities.
- Provide technical leadership and mentorship to junior network administrators and technicians.
- Coordinate with cybersecurity, systems engineering, and customer stakeholders to ensure compliance and operational readiness.
