Full-Time

Principal Linux Systems Administrator

Updated on 2/17/2025

Northrop Grumman

Northrop Grumman

10,001+ employees

Aerospace and defense technology solutions provider

Cybersecurity
Aerospace
Defense

Compensation Overview

$93k - $139.6kAnnually

+ Overtime + Shift Differential + Discretionary Bonus

Senior, Expert

Aurora, CO, USA

Relocation assistance may be available.

US Top Secret Clearance Required

Category
System Administration
IT & Security
Software Engineering
Required Skills
Linux/Unix

You match the following Northrop Grumman's candidate preferences

Employers are more likely to interview you if you match these preferences:

Degree
Experience
Requirements
  • Master's Degree with 3 years of IT experience; OR a Bachelor's Degree with 5 years of IT experience; OR an Associate's Degree with 7 years of IT experience; OR a High School Diploma/GED with 9 years of IT experience is required
  • Must have a DOD 8570 IAT Level II, or higher, certification (example: Security+ CE); maintaining the required certification will be a condition of continued employment
  • Must have Linux Operating Systems support experience
  • Linux Workstation and Server management experience is required
  • Experience operating under, and managing systems within, NISPOM Chapter 8, DCID 6/3-ICD 503, RMF, STIG, JAFAN, or JSIG information system environments
  • Candidates must have a current DOD Top Secret level security clearance, to include SCI access and a recent Polygraph [adjudicated within the last 5 years], in order to be considered
  • Candidates must have the ability to obtain, and maintain, access to Special Programs as a condition of continued employment.
Responsibilities
  • Perform as primary Linux Systems Administrator for a classified government contract
  • Communicate effectively at all levels of the organization, with internal and external customers, in written and verbal format
  • 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 while ensuring necessary administration tasks are completed and directing 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, and 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 input to Computer Security
  • Report project status as required for all recurring and non-recurring efforts
  • Work under minimal direction and independently determine and develop approach to solutions.
Desired Qualifications
  • The ideal candidate will have a Bachelor's degree in Information Technology, a Security+ CE, a Linux+ or RHCSA, and 5 years of Linux Server Administration experience in a classified environment
  • Understanding of basic networking, including subnets, routing, and VLANs; Cisco experience and/or certification
  • Windows server management experience
  • Windows AD, LDAP, VMWare, and knowledge of SAN storage systems
  • VMWare experience with current version
  • Knowledge of environmental monitoring tools (HBSS/Solar Winds/Splunk)
  • Rudimentary Scripting experience
  • Experience with the creation and deployment of system images in an enterprise environment
  • Experience with Certification & Accreditation process

Northrop Grumman provides advanced aerospace and defense technology solutions, focusing on areas such as autonomous systems, cybersecurity, and space operations. The company develops and integrates complex systems that support government and commercial clients, particularly the U.S. Department of Defense and international allies. Its products and services include command and control systems, surveillance technologies, and logistics support, all designed to enhance national security and operational effectiveness. Northrop Grumman stands out from competitors by leveraging its extensive research and development capabilities and a strong track record in securing long-term contracts through competitive bidding. The company's goal is to maintain its leadership position in the aerospace and defense sector by continuously innovating and delivering comprehensive solutions that meet the evolving needs of its clients.

Company Size

10,001+

Company Stage

IPO

Total Funding

$192.2M

Headquarters

Falls Church, Virginia

Founded

1939

Simplify Jobs

Simplify's Take

What believers are saying

  • Growing demand for autonomous drones boosts Northrop Grumman's Manta-Ray development.
  • $481 million contract for IBCS software highlights Northrop Grumman's defense software expertise.
  • Planisware Enterprise adoption enhances Northrop Grumman's digital transformation and operational efficiency.

What critics are saying

  • Competition from China's Shijian-25 satellite challenges Northrop Grumman's space servicing plans.
  • Departure of key leader Walsmith may impact cybersecurity and intelligence operations.
  • Manta-Ray drone development may face technological and operational challenges.

What makes Northrop Grumman unique

  • Northrop Grumman excels in autonomous systems and advanced defense technologies.
  • The company has a strong track record with government contracts and defense solutions.
  • Northrop Grumman's diversified segments ensure a stable and varied revenue stream.

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Benefits

Health Insurance

Life Insurance

Disability Insurance

Paid Vacation

Paid Holidays

Relocation Assistance

Performance Bonus

Company News

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WASHINGTON, Feb. 19, 2025 /PRNewswire/ -- DiscoverE (Discover Engineering) has announced the winners of the 2025 Future City® global STEM Competition, celebrating the innovative minds of both middle and high school students who tackled this year's challenge: "Above the Current." Participants envisioned sustainable, floating cities that address rising sea levels and climate change, demonstrating creativity, engineering prowess, and teamwork

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Silicon Canals
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Securities.io
Jan 24th, 2025
Jwst – The James Webb Space Telescope

Looking Deeper Into The UniverseSome megaprojects involve gigantic infrastructures, like, for example, the 27-kilometer diameter circle of the CERN particles accelerator or the 800-mile-long neutrino experiment of DUNE .Others can be qualified as megaprojects not because of their size but because of their sheer complexity, costs, and how transformative they are to our understanding of the Universe.A good example of this is the James Webb Space Telescope (JWST). This infrared light space-based telescope is the most powerful and largest ever created. The telescope takes its name from James E. Webb, the legendary administrator of NASA from 1961 to 1968 during the Mercury, Gemini, and Apollo programs.JWST is so powerful that it could equally help us observe the very first stars to have ignited in the Universe and find potentially habitable exoplanets. And to obtain these results, scientists and engineers have worked wonders to push the limit of what telescopes could achieve.Why Put A Telescope In Space?The first thing to understand about the James Webb Space Telescope is why it needs to be in space in the first place. After all, lifting complex machinery into space is a lot more difficult than building the same thing down on Earth.By going out of the atmosphere, telescopes can get a view of the Universe undisturbed by light pollution, atmospheric turbulence, and, of course, clouds and weather patterns.This is the reason why the relatively small Hubble telescope performed so well compared to ground-based telescopes

SlashGear
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The German Navy Is Testing A New Unmanned Underwater Drone

Northrop Grumman is developing an underwater Manta-Ray drone for the U.S. Navy, which will be capable of long-term operation anywhere in the world.