Principal Computer Systems Architect​/Sr. Principal Computer Systems Architect; Level 3

Relocation Assistance

Relocation assistance may be available.

Top Secret clearance required.

10% of the time.

Northrop Grumman Space Systems is looking for a Principal Computer Systems Architect / Senior Principal Computer Systems Architect (Level 3/4) to join the ATL STEE Team in Redondo Beach, CA. The role focuses on supporting operations in a mixed Linux and Windows environment, including networking, user account management, test equipment support, and on‑call assistance during critical testing phases.

• Support daily requests from operations floor and SV EGSE test sets.
• Provide network access for high bay locations and new equipment.
• Manage user accounts and shared drive access.
• Travel ~10% and support offsite activities when required.
• Provide 24x7 on‑call support during critical test phases.

9/80 schedule: nine‑hour days Monday to Thursday with alternate Fridays off.

• Medical, Dental & Vision coverage
• 401(k) retirement plan
• Educational assistance
• Life insurance
• Employee assistance programs & work/life solutions
• Paid time off
• Health & wellness resources
• Employee discounts

• Minimum 5+ years relevant experience with a Bachelor’s degree; or 3+ years with a Master’s degree.
• Available to travel periodically ~10%.
• Working knowledge of network protocols, TCP/IP, DNS, DHCP, static IP configuration, VLANs and network security.
• Knowledge of network drive shares and ability to manage share access.
• Proficiency with Windows 10, 11, Windows Server, Linux‑RHEL 7, 8, 9 or other Linux distributions.
• Knowledge of security best practices, access control and incident response fundamentals.
• Ability to diagnose and resolve complex issues, communicate effectively, handle multiple tasks and document processes.
• Top Secret (TS) and active SCI Clearances with Poly within the last 5 years required at application time.

• Minimum 9+ years relevant experience with a Bachelor’s degree; or 7+ years with a Master’s degree.
• Available to travel periodically ~10%.
• Working knowledge of network protocols, TCP/IP, DNS, DHCP, static IP configuration, VLANs and network security.
• Knowledge of network drive shares and ability to manage share access.
• Proficiency with Windows 10, 11, Windows Server, Linux‑RHEL 7, 8, 9 or other Linux distributions.
• Knowledge of security best practices, access control and incident response fundamentals.
• Ability to diagnose and resolve complex issues, communicate effectively, handle multiple tasks and document processes.
• Top Secret (TS) and active SCI Clearances with Poly within the last 5 years required at application time.

• Advanced knowledge of network protocols and firewall configuration; ability to troubleshoot network issues.
• Intermediate understanding of computer networking, OS configuration, network switches, firewalls, CISCO IOS and cable media such as CAT6 and fiber optics.
• Experience building, deploying, and configuring Windows 10, 11, Windows Server, Linux RHEL 7, 8 or 9; troubleshoot IT hardware and systems.
• Experience with Net App storage appliances, VMWare vSphere, Active Directory administration, Security Center.

Primary Level: $114,000 – $171,000. Secondary Level: $142,200 – $213,400. Salary is determined by scope, experience, market conditions.

Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit  U.S. citizenship is required for all positions with a government clearance.