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Sr. Principal Linux Systems Administrator

Requisition ID: R10064700

  • CategoryCategory: Information Technology
  • LocationLocation: Linthicum, MD, USA
  • Citizenship RequirementsCitizenship Required: United States Citizenship
  • Security Clearance TypeClearance Type: Top Secret
  • TelecommuteTelecommute: No- Teleworking not available for this position
  • ShiftShift: 1st Shift (United States of America)
  • Travel RequirementsTravel Required: Yes, 10% of the Time
  • Relocation AssistanceRelocation Assistance: Relocation assistance may be available
  • Number of Positions AvailablePositions Available: 2

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 Global Operations Security is seeking a well-qualified Linux Systems Administrator to join its dynamic team of technical professionals in Linthicum, MD. The selected candidate will be required to work on-site, full-time, at our Linthicum facilities. Responsibilities will include, but not be limited to, the following:

  • Perform as a Linux Systems Administrator for a classified government contract.

  • Manage and maintain secure, minimally-interrupted operations of Linux servers and workstations.

  • Support bare-metal and virtual machines.

  • Install, harden, and patch Linux operating systems.

  • Install and rack server hardware and hardware based components.

  • Develop and document technical procedures.

  • Partition disks, create logical volumes, create file systems, and mount file systems in Linux environments.

  • Read, modify, and create shell script and scripts in various other languages.

  • Understand basic LDAP and DNS concepts and be able to query these services for information and troubleshoot issues in Linux environments.

  • Learn new technologies on own and work effectively independently, while still coordinating actions as required.

  • Install and configure COTS software, and perform configuration and maintenance in Linux environments.

  • Interact with and successfully utilize boards-of-approval to maintain required security controls and configuration management.

  • Perform technical research on Information Technology topics, as requested, and produce presentations and recommendations.

  • Coordinate actions with peer systems administrators, network administrators, security teams, software teams, and hardware engineers.

  • Occasional travel to customer sites or other Northrop Grumman sites in support of troubleshooting, testing, and deployment activities.

Basic Qualifications:

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

  • Current DoD Top Secret security clearance with SCI eligibility; the ability to maintain the required security clearance will be a condition of continued employment.

  • The selected candidate will be required to obtain a polygraph within a reasonable period of time, as determined by customer and/or program requirements; maintaining a current DoD Top Secret security clearance with the required polygraph will be a condition of continued employment.

  • Candidate may be temporarily assigned other duties, as needed, while awaiting completion of clearance requirements.

  • Currently valid Security+ CE, CASP, CISSP, or similar DoD 8570 security certification; otherwise an ability to obtain certification within 6 months of hire date as a condition of continued employment; certification must be maintained as a condition of continued employment. Additional contract changes may expedite the 6 month window.

  • Experience managing RedHat Linux server environment.

  • Experience designing RedHat environments.

  • Experience patching RedHat Linux.

  • Experience hardening RedHat Linux to DoD standards.

  • Experience creating kickstart installations. • Ability to lift equipment weighing up to 40 pounds.

  • Ability to work after hours and weekends as needed.

Preferred Qualifications:

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

  • Redhat System Administration certification(s).

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

  • Redhat Satellite Server (version 5 and version 6) configuration and usage experience.

  • Understanding of remediating security vulnerabilities; experience hardening Redhat systems in accordance with RMF and STIGs.

  • Identity Management (Single Sign-On) experience.

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

  • Experience with host-based firewall implementations and configuration (Redhat “iptables”).

  • Experience building custom “rpm” software packages for Redhat platforms.

  • Windows (7, 10) administration experience; Windows Server 2008/2012 experience; Group Policies(GPOs) experience; Active Directory management experience.

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

Salary Range: $112,300 USD - $168,500 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

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 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.