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Principal/Sr. Principal Linux Systems Administrator

Requisition ID: R10047484

  • Category IconCategory: Information Technology
  • Location IconLocation: Boulder, Colorado, United States of America
  • Citizenship IconCitizenship Required: United States Citizenship
  • Clearance IconClearance Type: Secret
  • Telecommute IconTelecommute: No- Teleworking not available for this position
  • Shift IconShift: 1st Shift (United States of America)
  • Travel IconTravel Required: Yes, 10% of the Time
  • Positions IconPositions Available: 1

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 Enterprise Services is seeking a well-qualified Linux Systems Administrator; this position will be located in Boulder, CO. Job responsibilities will include, but not be limited to, the following:

  • Perform as a Linux Systems Administrator on large classified government contracts.

  • Communicate effectively at all levels of the organization, with internal and external customers, in written and verbal formats.

  • Maintain smooth operation of multi-user computer systems, including coordination with network, software, and system engineers, PC desktop technicians, project managers, end users, and customer and IT management.

  • Support multiple networks.

  • Ensure necessary administration tasks are completed and direct others as necessary.

  • Analyze internal and 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; and manage virus protection on a routine basis.

  • Create and maintain user and computer accounts and modify file permissions and security access lists.

  • Test new releases of products to ensure compatibility and minimize user impact.

  • Develop and document technical processes and procedures as needed.

  • Make recommendations to purchase hardware, software, and system components.

  • Interact, meet, discuss, and troubleshoot issues with vendors; evaluate vendor products, services, and suggestions.

  • Adhere to strict Information Systems security guidelines in all cases.

  • Maintain security audit and logging information on all classified networked and standalone computers as directed by the Information Systems Security Manager (ISSM).

  • Prepare security documentation for Cyber Security team.

  • Report project status as required for all recurring and non-recurring efforts.

  • Work under minimal direction and independently determine and develop approach to solutions.

This position can be filled at either Level 3 or Level 4, depending on the qualifications outlined below.

Basic Qualifications for Level 3 (Principal):

  • Master's degree with 3 years of experience, or Bachelor’s degree with 5 years of experience, or Associate's degree with 7 years of experience; a High School Diploma or equivalent with 9 years of experience may be considered in lieu of a completed degree.

  • Must have at least 1 year of server administration experience with RHEL or VMWare.

  • Must have a DoD 8570 IAT Level II baseline certification (example: Security+ CE), or have the ability to obtain one within 6 months of start date as a condition of continued employment.

  • Ability to lift equipment weighing up to 40 pounds.

  • Ability to work after hours and weekends as needed.

  • Current DoD Secret level security clearance.

Basic Qualifications for Level 4 (Sr. Principal):

  • Master's degree with 7 years of experience, or Bachelor’s degree with 9 years of experience, or Associate's degree with 11 years of experience; a High School diploma or equivalent with 13 years of experience may be considered in lieu of a completed degree.

  • Must have at least 1 year of server administration experience with RHEL or VMWare.

  • Must have a DoD 8570 IAT Level II baseline certification (example: Security+ CE), or have the ability to obtain one within 6 months of start date as a condition of continued employment.

  • Ability to lift equipment weighing up to 40 pounds.

  • Ability to work after hours and weekends as needed.

  • Current DoD Secret level security clearance.

Preferred Qualifications:

  • Master's degree in a STEM related discipline, a Redhat Certified Engineer certification, a Security+ CE, and 5+ years of experience with server administration in an SCI classified environment.

  • Experience operating under and managing systems within NISPOM Chapter 8, DCID 6/3-ICD 503, RMF, STIG, JAFAN, or JSIG information system environments.

  • Experience with Trusted Guard.

  • RHEL System Administration certification(s).

  • Experience with NAS storage device (preferably NetApp) administration (ONTAP 8.x or higher; CDOT).

  • Solid understanding of Enterprise-level storage concepts to include all commonly-used RAID-levels.

  • Satellite configuration and usage experience.

  • Solid understanding of remediating security vulnerabilities and experience hardening Linux systems in accordance with RMF and STIGs.

  • VMware and ESXi (6.x or higher) configuration and management experience.

  • Ansible, Puppet, RHEL 7, Satellite Experience.

  • Solid writing skills and experience using Wiki pages and Sharepoint sites for documentation.

  • DoD 8570 Certification in a primary OS (Windows, Linux, Cisco).

  • Currently valid Security+ CE, CASP, CISSP, or similar security certification.

  • Current Top Secret security clearance.


Salary Range: $92,200 USD - $138,400 USD
Salary Range 2: $114,300 USD - $171,500 USD

Employees may be eligible for a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business.

The health and safety of our employees and their families is a top priority. The company encourages employees to remain up-to-date on their COVID-19 vaccinations. U.S. Northrop Grumman employees may be required, in the future, to be vaccinated or have an approved disability/medical or religious accommodation, pursuant to future court decisions and/or government action on the currently stayed federal contractor vaccine mandate under Executive Order 14042 https://www.saferfederalworkforce.gov/contractors/.

Northrop Grumman is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action 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/AA and Pay Transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for most positions.



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What's great about
Northrop Grumman

  1. Be part of a culture that thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work.
  2. Use your skills to build and deliver innovative tech solutions that protect the world and shape a better future.
  3. Enjoy benefits like work-life balance, education assistance and paid time off.


Did you know?

Northrop Grumman leads the industry team for NASA’s James Webb Space Telescope, the largest, most complex and powerful space telescope ever built. Launched in December 2021, the telescope incorporates innovative design, advanced technology, and groundbreaking engineering, and will fundamentally alter our understanding of the universe.