Sr Principal Network Administrator - Top Secret

Northrop Grumman Northrop Grumman · Aerospace · Gilbert, AZ +1 · Networks

Northrop Grumman is seeking a Sr. Network Administrator to support classified government contracts, focusing on network architecture, design, integration, and implementation of large-scale, multidomain networks. The role requires defining long-term network roadmaps (SDWAN, ZeroTrust, cloud-enabled networking), ensuring alignment with security and compliance, and providing advanced technical support and mentorship. A Top Secret clearance and meeting US Government 8140 requirements are mandatory.

What you'd actually do

  1. Perform Sr. Network Communications activities in support of classified government contracts.
  2. Define and execute long-term network architecture roadmaps, such as SDWAN, ZeroTrust, and cloud-enabled networking, ensuring alignment with enterprise security and compliance requirements.
  3. Lead the design, integration, and implementation of large-scale, multidomain networks supporting classified missions, and oversee network migrations and cyber resilience initiatives.
  4. Serve as a senior technical liaison to government customers and internal leadership, negotiating requirements, delivering status briefings, and participating in external technical forums, proposals, and procurement discussions.
  5. Author, maintain, and enforce enterprise-wide network standards, policies, and security frameworks; regularly audit compliance and champion continuous improvement initiatives.

Skills

Required

  • Master's Degree with 5 years of relevant technical experience OR Bachelor's Degree with 7 years of relevant technical experience OR Associate's Degree with 9 years of relevant technical experience OR High School Diploma with 11 years of relevant technical experience
  • Demonstrated experience designing and maintaining complex LAN/WAN based networks to include analysis, enhancements of routers, switches, and firewalls
  • US Government 8140 requirements (8570 equivalent) for a Sr Principal Network Communications - IAT level II baseline certification (example: Security+ CE)
  • Current US Government Top Secret level security clearance (at a minimum), to include a closed investigation date completed within the last 6 years OR enrolled in the DOD Continuous Evaluation (CE) Program
  • Ability to obtain, and maintain, access to Special Programs

Nice to have

  • Network Engineering
  • CCNP certification
  • Security+ CE certification
  • Experience supporting Video Teleconferencing (VTCs), deploying audio/visual technologies in classified environments
  • Experience supporting Cisco Call Managers or other similar technologies
  • Experience designing, implementing, and managing largescale, multidomain network architectures; expertise in advanced routing, security, and mission critical systems
  • Experience with configuring TACLANES, and/or encryption solutions
  • Experience with Assessment & Authorization processes
  • Experience troubleshooting network procedures and best practices; experience with network challenges associated with systems integration, including COTS integration, capacity analysis and system architecture design
  • Evidence of published technical papers, patents, or internal knowledge‑sharing contributions

What the JD emphasized

  • Top Secret
  • 8140 requirements
  • IAT level II
  • Special Programs