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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr Principal Network Administrator - TS/SCI - **Company:** Northrop Grumman - **Location:** Dulles, VA, United States (Remote available) - **Experience:** Expert - **Salary:** $129,300 - $193,900 - **Contract:** Permanent contract - **Skills:** JIRA, Border Gateway Protocol, Network Analysis, Complex Networks, Cyber Security, Information Systems, Computer Networks, Multi-protocol Systems, Network Troubleshooting, Network Architecture, Routing, Open Shortest Path First (OSPF), Systems Integration, Wireshark, Wide Area Networks, Network Routers, Firewalls (Computer Science), SolarWinds (Software), National Industrial Security Program Operating Manual (NISPOM), OPNET (Software), Cisco, Servicenow - **Published:** November 11, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9307679/sr-principal-network-administrator-tssci ## About the Role * Master's Degree with 6 years of relevant technical experience; OR a Bachelor's Degree with 8 years of relevant technical experience; OR an Associate's Degree with 10 years of relevant technical experience; OR a High School Diploma / GED (or equivalent) with 12 years of relevant technical experience is required * Candidate must have a current U.S. Government Top Secret/SCI level security clearance to be considered * Must be able to obtain/maintain a Counter Intelligence Polygraph as a contrition of continued employment * Candidates must meet the U.S. Government 8140 requirements (8570 equivalent) for an Administrator - IAT level II certification or higher (Examples: Security+ CE, CND, CCNA Security, SSCP, GICSP, GSEC, CCISO) * Demonstrated experience designing and maintaining complex LAN/WAN based networks to include analysis, enhancements of routers, switches, and firewalls * Experience supporting Video Teleconferencing (VTCs), deploying audio/visual technologies in classified environments Preferred Qualifications: * Bachelor's degree Network Engineering preferred * CCNP certification * 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 * Knowledge of NISPOM Chapter 8, DCID 6/3-ICD 503, RMF, STIG, JAFAN, or JSIG information system environments * Experience in the use of network analysis tools (WireShark, SolarWinds, Opnet, etc.) * Design, implement, and troubleshoot advanced WAN protocols (BGP, OSPF, MPLS) and complex telco circuits ## Description The Northrop Grumman CIDO Classified Solutions team is seeking a Sr. Principal Network Communications to support information system lifecycle activities. The selected candidate will be required to work on-site, full-time at our Dulles, VA location . The responsibilities of this role include, but are not limited to, the following: * Perform Sr. Principal Network Communications activities in support of classified government contracts. * Define and execute long-term network architecture roadmaps, such as SDWAN, ZeroTrust, and cloud-enabled networking, ensuring alignment with enterprise security and compliance requirements. * Lead the design, integration, and implementation of large-scale, multidomain networks supporting classified missions, and oversee network migrations and cyber resilience initiatives. * 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. * Author, maintain, and enforce enterprise-wide network standards, policies, and security frameworks; regularly audit compliance and champion continuous improvement initiatives. * Provide advanced monitoring, analysis, and planning for network systems, coordinating third-party maintenance as needed and supporting environments through ticketing systems (e.g., ServiceNow, JIRA). * Deliver third-level technical support for complex network, hardware, software, and telecommunications issues * Develop innovative technical solutions to complex problems, support project designs, clarify requirements, and ensure solutions adhere to established standards. * Raise issues requiring management attention and measure performance against KPIs, implementing corrective actions to exceed operational standards. * Provide senior-level technical expertise by mentoring junior and experienced team members, fostering their professional growth and enhancing team capabilities. * Lifts and moves equipment up to 50 pounds. * Work after hours, and weekends, as needed. Note: Due to the classified nature of the work being performed, this position does not offer any virtual or telecommute working options. Applicants are encouraged to apply, only if they are willing to work on-site.