Senior Principal Network Architect, SCI/Top Secret

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

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.