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Sr Principal System Administrator Security Clearance
Job in
Aurora, Arapahoe County, Colorado, 80010, USA
Listed on 2026-02-12
Listing for:
Northrop Grumman
Full Time
position Listed on 2026-02-12
Job specializations:
-
IT/Tech
Cybersecurity, Systems Engineer, Network Security
Job Description & How to Apply Below
RELOCATION ASSISTANCE:
Relocation assistance may be available 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.
Northrop Grumman Space Systems (NGSP) seeks to fill a Sr. Principal Systems Administrator supporting Integrated National Systems (INS) Business Unit (BU). This position is located in Aurora, CO In this role, the successful candidate will design and plan network communication systems and provide specifications and detailed schematics for network architecture. The candidate must be able to troubleshoot and isolate network faults and failures and provide specific detailed information for hardware and software selections, implementation techniques and tools for the most efficient solution to meet business needs, including present and future capacity requirements.
This candidate will have to maintain technical expertise in all areas of network and software interconnections and interfacing, such as routers, switches, firewalls, load balancers etc. Candidates are required to be Security+ certified. Candidates must have the ability to work within a group or independently where collaboration and attention to detail is critical to mission success. Travel is required at a minimum of 30%.
Basic Qualifications
* Bachelor's degree with 8+ years of relevant experience; OR Master's degree with 6 years of experience; 12+ years of relevant experience may be consider in lieu of a degree.
* Current active TS/SCI security clearance required at the time of application and must be willing to take and obtain an adjudicated CI Polygraph.
* Experience with Kubernetes (K8S), implementation, migration, and maintenance/troubleshooting.
* Experience with automation (Pathing & Configuration Management).
* Network design and implementation experience with Cisco and HP switching and firewalls.
* OS System Admin Exp (Deployment and Maintenance)
* VMWare (VM's and Infrastructure)
* Windows (Server & Workstations)
* Linux (RHEL 8 &
9)
* Experience in Security Technical Implementation Guide (STIG) compliance and IA accreditation. Experience operating under and managing systems within NISPOM Chapter 8, DCID 6/3-ICD 503, RMF, (STIG), JAFAN, or JSIG information system environments
* Must have a DOD 8570 IAT Level 2 baseline certification. Security+ CE, CySA+, CCNA security, GSEC, SSCP, or higher-level security certification; certification must be maintained as a condition of continued employment.
* Network design and implementation experience with Cisco and HP switching and firewalls.
* Storage Area Network (SAN) and Network Attached Storage (NAS) design and implementation experience
* Experience with cryptological devices (KG-175, KIV-7, KGR-42) technologies.
* Ability to travel up to 30% to various overseas locations or as needed. TDYs typically occur 3-4 times a year for 2-3 weeks per deployment.
* Ability to lift equipment weighing up to 40 pounds.
Preferred Qualifications
* WSUS & Yum repository management in air gapped environments.
* PKI implementation
* Familiar with DoD RMF accreditation process/requirements
* Experience with Net App storage
* Perform as consulting Systems Administrator and subject matter expert for classified government contracts.
* Obtain and analyze internal and external customer requirements, recommend equipment and software as needed, and oversee system implementation and accreditation.
* Navigate complex system configurations and implement enhancements that will improve the performance, reliability, and security of the system including installing, upgrading/patching, monitoring, problem resolution, and configuration management.
* Develop and document technical processes and procedures as needed.
* Ensure necessary administration tasks are completed, and direct others as necessary.
* Analyze internal or external customer requirements and determine equipment and software requirements for solutions to problems by means of automated systems.
* Recommend and implement system enhancements that will improve the performance and reliability of the system including installing, upgrading/patching, monitoring, problem resolution, and configuration management.
* Provide backup and recovery services; manage file systems and disk space; manage virus…
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