Full-Time

Principal/Sr. Principal Cross Domain Solutions Systems Administrator

Aht

Updated on 3/14/2025

Northrop Grumman

Northrop Grumman

10,001+ employees

Aerospace and defense technology solutions provider

Compensation Overview

$84.2k - $156.6kAnnually

+ Overtime + Shift Differential + Discretionary Bonus

Senior, Expert

Orlando, FL, USA + 3 more

More locations: Fairfax, VA, USA | McLean, VA, USA | Offutt AFB, NE, USA

US Citizenship, US Top Secret Clearance Required

Category
Cybersecurity
System Administration
IT & Security
Required Skills
Linux/Unix
Requirements
  • Bachelor’s degree in Computer Information Systems, or related discipline with 5 years of experience / 3 years with Masters (for Level 3)
  • Bachelor’s degree in Computer Information Systems, or related discipline with 6 years of experience / 6 years with Masters (for Level 4)
  • Ability to obtain and maintain Active DoD Secret Clearance
  • Current DoD 8570 Certification IAT Level II or higher (Security+, CISSP, etc.) or ability to obtain one within 6 months
  • DoD 8570 Certification in a primary OS (preferably Linux)
  • Demonstrated experience with Red Hat Enterprise Linux (RHEL) server & workstation administration in a classified environment
  • Solid understanding of remediating security vulnerabilities; Experience hardening Linux systems in accordance with RMF and STIGs
  • Demonstrated experience performing administration on VMware technologies (or related)
  • Demonstrated experience 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
  • Demonstrated experience communicating effectively at all levels of the organization, with internal or external customers, in written and oral formats.
Responsibilities
  • Maintain smooth operation of multi-user computer systems, including coordination with network administrators
  • Interact with users and evaluate vendor products
  • Make recommendations to purchase hardware and software, coordinate installation and provide backup recovery
  • Develop and monitor policies and standards for allocation related to the use of computing resources
  • Set up administrator and service accounts, maintain system documentation, tune system performance, install system wide software and allocate mass storage space.
Desired Qualifications
  • Active DoD Secret Clearance
  • Experience operating under and managing systems within NISPOM Chapter 8, DCID 6/3-ICD 503, RMF, STIG, JAFAN, or JSIG information system environments
  • Experience configuring System Build Automation using Ansible, Red Hat Ansible Tower, Red Hat Automation Controller
  • 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 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
  • 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 an approach to solution
  • Experience with NAS storage solutions
  • Solid understanding of Enterprise-level storage concepts to include all commonly used RAID-levels
  • Identity Management (Single Sign-On) experience
  • VMware/Vsphere, Trellix (McAfree) antivirus and ESXi (6.x or higher) configuration and management experience
  • Experience with host-based firewall implementations and configuration (Redhat “iptables”)

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. Northrop Grumman stands out from competitors by leveraging its extensive research and development capabilities and maintaining a strong track record in securing long-term contracts through competitive bidding. The company's goal is to deliver innovative solutions that enhance national security and support defense operations globally.

Company Size

10,001+

Company Stage

IPO

Headquarters

Falls Church, Virginia

Founded

1939

Simplify Jobs

Simplify's Take

What believers are saying

  • Increased demand for autonomous systems boosts Northrop Grumman's innovation in AI technologies.
  • Growing interest in space exploration opens new markets for Northrop Grumman.
  • U.S. defense budget increases offer more contract opportunities for Northrop Grumman.

What critics are saying

  • Competition from Palantir's AI systems may challenge Northrop Grumman's market share.
  • Unmanned fighters could disrupt traditional aerospace markets affecting Northrop Grumman.
  • Advancements in 3D printing by competitors may require Northrop Grumman to adapt.

What makes Northrop Grumman unique

  • Northrop Grumman excels in autonomous systems and advanced defense technologies.
  • The company has a strong foothold in space systems and satellite deployment.
  • Northrop Grumman's cybersecurity solutions are integral to modern defense systems.

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Benefits

Health Insurance

Life Insurance

Disability Insurance

Paid Vacation

Paid Holidays

Relocation Assistance

Performance Bonus

Company News

Exchange Monitor
Mar 10th, 2025
Northrop Grumman does "static fire test" on Sentinel ICBM

Northrop Grumman is building the LGM-35A Sentinel intercontinental ballistic missile (ICBM) to replace the Minuteman III ICBM as the land leg of the nuclear triad.

MarketBeat
Mar 10th, 2025
Callan Family Office LLC Invests $618,000 in Northrop Grumman Co. (NYSE:NOC)

Callan Family Office LLC invests $618,000 in Northrop Grumman Co. (NYSE:NOC).

Olhar Digital
Mar 8th, 2025
Palantir launches AI systems for the US military

Additionally, Palantir has partnered with companies including Northrop Grumman, L3Harris, and Anduril Industries to enhance the program's capabilities.

MarketBeat
Mar 8th, 2025
Raymond James Financial Inc. Makes New $171.58 Million Investment in Northrop Grumman Co. (NYSE:NOC)

Raymond James Financial Inc. makes new $171.58 Million Investment in Northrop Grumman Co. (NYSE:NOC).

Army Recognition
Mar 6th, 2025
US Air Force Prepares for Arrival of B-21 Raider Bombers with Streamlined Production and Enhanced Stealth.

On March 5, 2025, Northrop Grumman announced continued progress in developing the B-21 Raider, demonstrating solid performance in testing and production.