Principal Computer Systems Analyst – Linux

Northrop Grumman

. Support information system lifecycle activities for classified government contracts .

Posted 10/22/2026full-timeUnited StatesLead💰 $98,900 - $155,400 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in Linux Server Administration within classified environments, ensuring compliance with security guidelines and managing system lifecycles. Proficient in technical documentation, troubleshooting, and supporting various IT systems and networks.

Highest-signal resume keywords

Linux Server AdministrationTop Secret Security ClearanceSecurity+ CE CertificationServiceNow Ticketing SystemVirtualization Experience

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Linux AdministrationSystem ConfigurationBackup and Recovery ServicesVirus Protection ManagementTechnical Documentation DevelopmentTroubleshootingScriptingNetwork ManagementSystem ImagingAssessment & Authorization Processes

Soft Skills

CommunicationCollaborationProblem-Solving

Tools & Technologies

DockerKubernetesVMwareSolarWindsSplunkJIRA

Certifications & Qualifications

Security+ CEIAM Level I Certification

Industry Keywords

NISPOM Chapter 8DCID 6/3-ICD 503RMFSTIGJAFANJSIGInformation Systems SecurityCybersecurity

Tech Stack

Tools & technologies

DockerKubernetesLinuxServiceNowSplunkUnixVMware

About the role

Key responsibilities & impact

Support information system lifecycle activities for classified government contracts
Perform Linux computer systems analysis and administration
Support multiple networks and complete Linux administration tasks
Maintain multi-user computer systems in collaboration with system engineers, desktop technicians, networking engineers, project managers, end users, and IT/Cyber management
Review internal customer requirements and recommend hardware, software, and system component purchases
Install, upgrade, patch, monitor, troubleshoot, and configure systems
Provide backup and recovery services; manage file systems and disk space
Manage routine virus protection
Test product releases for compatibility and minimized user impact
Develop and maintain technical documentation
Support Computer Security documentation and adhere to Information Systems security guidelines
Maintain security audit and logging information on classified computers as directed by the ISSM
Isolate issues across software, firmware, hardware, operating systems, networks, and applications
Support ticketing systems such as ServiceNow and JIRA
Report task statuses in written and oral formats
Escalate issues requiring senior-level attention

Requirements

What you’ll need

Bachelor's degree with 5 Years of relevant experience or 3 Years with a Masters
Current U.S. Government Top Secret level security clearance, including SCI access and a recent CI Polygraph adjudicated within the last 5 years
U.S. Government 8140 requirements for IAM Level I equivalent or higher security certification, such as Security+ CE or CGRC
Linux Server Administration experience in a classified environment
Ability to work on-site full-time in Redondo Beach, CA or Linthicum, MD
Ability to travel 10% of the time
Ability to lift and move equipment up to 50 pounds
Ability to work after hours and weekends as needed
U.S. Citizenship required for positions with a government clearance
Preferred: experience with NISPOM Chapter 8, DCID 6/3-ICD 503, RMF, STIG, JAFAN, or JSIG environments
Preferred: current virtualization and containerization experience, including Docker and Kubernetes
Preferred: networking knowledge, including subnets, routing, VLANs, and VTCs
Preferred: VMware experience with current version
Preferred: knowledge of HBSS, SolarWinds, or Splunk
Preferred: scripting experience
Preferred: cross-platform operating system awareness across at least two of Windows, Linux, Solaris, OSX, and UNIX
Preferred: experience creating and deploying system images in an enterprise environment
Preferred: experience with Assessment & Authorization processes

Benefits

Comp & perks

Flexible work arrangements
Learning opportunities
Exposure to a wide variety of projects and customers
Friendly team environment
Health insurance coverage
Life and disability insurance
Savings plan
Company paid holidays
Paid time off (PTO) for vacation and/or personal business
9/80 work schedule
401k matching program
Overtime eligibility, depending on position
Shift differential, depending on position
Discretionary bonus eligibility, depending on position
Long Term Incentives eligibility for Vice President or Director positions