Sr Principal Network Administrator - TS/SCI

Northrop Grumman; United States; On-site; USD 120,000 - 160,000; Full time

Job summary

Northrop Grumman in Dulles, VA is seeking a Sr. Principal Network Communications to support classified government contracts on-site.

The role focuses on defining long-term network architecture roadmaps, including SDWAN, Zero Trust, and cloud-enabled networking, while ensuring compliance with security requirements. You will lead design and integration of large-scale multidomain networks, mentor junior staff, coordinate with government customers, and uphold enterprise standards.

Qualifications

• Master's degree with 6 years of relevant technical experience; OR a Bachelor's Degree with 8 years...
• Candidate must have a current U.S. Government Top Secret/SCI level security clearance
• Must be able to obtain/maintain a Counter Intelligence Polygraph as a condition of continued employment
• Candidates must meet 8140 requirements (8570 equivalent) for an Administrator - IAT level II certification or higher
• Demonstrated experience designing and maintaining complex LAN/WAN based networks
• Experience supporting Video Teleconferencing (VTCs) in classified environments

Responsibilities

• Perform Sr. Principal Network Communications activities in support of classified government contracts.
• Define and execute long-term network architecture roadmaps (SDWAN, ZeroTrust, cloud-enabled networking).
• Lead the design, integration, and implementation of large-scale multidomain networks and oversee migrations.
• Serve as a senior technical liaison to government customers and internal leadership.
• Audit compliance and enforce security frameworks enterprise-wide.
• Provide advanced monitoring, analysis, and planning for network systems and coordinate third-party maintenance.
• Deliver third-level technical support for network, hardware, software, and telecom issues.
• Develop innovative technical solutions and ensure adherence to standards.
• Raise issues requiring management attention and measure KPIs with corrective actions.
• Provide senior-level mentorship to junior staff and foster team growth.
• Lifts and moves equipment up to 50 pounds.
• Work after hours, and weekends, as needed.

Skills

LAN/WAN design

Network security

VTC support

Technical leadership

Mentoring

Education

Master's degree

Bachelor's degree

Associate's degree

High School Diploma

Tools

ServiceNow

JIRA

Network monitoring tools

Job description

RELOCATION ASSISTANCE: No relocation assistance available

CLEARANCE REQUIRED FOR START: Yes

CLEARANCE TYPE: SCI

TRAVEL: Yes, 10% of the Time Description

At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work - and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history.

At the heart of Defining Possible is our commitment to missions. In rapidly changing global security environments, Northrop Grumman brings informed insights and secure technological solutions to enable strategic objectives. We're looking for innovators who can help us keep building on our wide portfolio of secure, affordable, integrated, and multi-domain systems and technologies that fuel those missions. By joining in our shared mission, we will support yours by expanding your personal network and developing skills, whether you are new to the field or an industry thought leader. At Northrop Grumman, you will have the resources, support, and team to do some of the best work of your career.

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 support 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.

Basic Qualifications:

• 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 d