Network Engineer

Zachary Piper Solutions is currently seeking a Senior Network Engineer to support a mission-critical network infrastructure program based at Joint Base Andrews, MD. This position is a full-time role that will be onsite (ad-hoc telework eligible as mission requirements permit). This role is critical in ensuring the availability, security, and operational resilience of classified and unclassified enterprise network environments supporting Department of Defense missions. As a Senior Network Engineer, you will play a pivotal role in network architecture, systems administration, cybersecurity compliance, outage response, and infrastructure modernization within a highly secure defense environment.

Key Responsibilities:

• Deploy, provision, configure, and maintain high-availability Cisco enterprise and data center routing and switching infrastructure, including Cisco Catalyst and Nexus platforms.
• Administer and support classified and unclassified network environments, ensuring continuous operational availability.
• Maintain detailed physical and logical network documentation, including rack elevations, cable plant records, asset inventories, patch maps, and port assignments.
• Identify and mitigate single points of failure (SPOFs) through redundancy planning and resilient network designs.
• Administer Cisco Catalyst Center (DNA Center) and Cisco Identity Services Engine (ISE) for network automation, access control, device profiling, and 802.1X implementations.
• Configure and maintain F5 BIG-IP (LTM/GTM) solutions supporting enterprise application delivery and load balancing.
• Manage RSA Authentication Manager for network device multi-factor authentication.
• Install, configure, maintain, and key Type-1 encryption devices including TACLANE and HAIPE platforms (KG-175D, KGV-72).
• Harden network infrastructure in accordance with DISA Security Technical Implementation Guides (STIGs) and DoD cybersecurity directives.
• Partner with cybersecurity and facilities teams to maintain audit-ready physical and logical security controls.
• Monitor network health, utilization, capacity, and environmental metrics utilizing Cacti and SNMP-based monitoring platforms.
• Deploy and support multicast routing technologies including PIM and IGMP for IPTV and enterprise video distribution services.
• Serve as the primary technical interface for operational coordination with DISA, the 26th Network Operations Squadron (26 NOS), and other enterprise stakeholders.
• Author and coordinate Authorized Service Interruptions (ASIs), change requests, rollback plans, and maintenance activities.
• Develop, maintain, and standardize SOPs, runbooks, and operational procedures.
• Support disaster recovery exercises, backup validation, restoration testing, and continuity planning efforts.
• Participate in Tier-3 on-call and operational standby rotations supporting mission-critical network services.

Requirements:

• Active DoD Secret Security Clearance
• Bachelor's degree in Computer Science, Information Technology, Computer Engineering, Electrical Engineering, or related technical discipline; or equivalent military/commercial experience.
• Minimum 7+ years of progressive network engineering experience supporting enterprise, data center, or mission-critical environments.
• Current CCNA or CCNP Enterprise certification.
• Current CompTIA Security+ CE certification.
• Strong hands-on experience supporting Cisco enterprise network environments.
• Experience supporting secure government, military, or defense-related network infrastructures.
• Ability to work onsite at Joint Base Andrews and participate in on-call operational support activities.

Preferred Qualifications:

• Extensive experience with Cisco Catalyst and Cisco Nexus routing and switching platforms.
• Administrative experience with Cisco Catalyst Center (DNA Center), Cisco ISE, and F5 BIG-IP (LTM/GTM).
• Experience configuring and maintaining TACLANE and HAIPE encryption devices.
• Strong understanding of DISA STIG implementation and compliance remediation.
• Experience supporting multicast technologies including PIM-SM, PIM-DM, and IGMP.
• Network automation experience utilizing Python and/or Ansible.
• Familiarity with Cisco SD-WAN and Cisco ACI architectures.
• Working knowledge of IPv6, dual-stack implementations, and advanced routing protocols.
• Experience supporting classified networks, SIPRNet environments, or air-gapped systems.
• Previous support experience within Air Force, Pentagon, AFNCR, Joint Base Andrews (JBA), or Joint Base Anacostia-Bolling (JBAB) network environments.

Compensation:

Salary Range: $135,000 - $150,000 annually depending on experience

Full Benefits Include:

• Medical Insurance
• Dental Insurance
• Vision Insurance
• 401(k)
• Paid Time Off (PTO)
• Sick Leave (where required by law)

This job opens for applications on 11/4/2026. Applications for this job will be accepted for at least 30 days from the posting date.

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Keywords: Network Engineer, Senior Network Engineer, Cisco, Cisco Catalyst, Cisco Nexus, CCNA, CCNP, Security+, DoD 8140, DISA STIG, TACLANE, HAIPE, KG-175D, KGV-72, Cisco ISE, Cisco Catalyst Center, DNA Center, F5 BIG-IP, F5 LTM, F5 GTM, RSA Authentication Manager, Data Center Networking, Enterprise Networking, Routing, Switching, Multicast, PIM, IGMP, IPTV, IPv6, Cisco SD-WAN, Cisco ACI, Network Security, SIPRNet, Classified Networks, Defense Networks, Network Operations, Cacti, SNMP, Infrastructure Engineering, Air Force, Joint Base Andrews, Network Automation, Python, Ansible, Disaster Recovery, Change Management, Technical Operations, Secret Clearance, Government Contracting, Department of Defense.