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UNIX​/Linux OS Administrator

Job in Omaha, Douglas County, Nebraska, 68197, USA
Listing for: General Dynamics Information Technology
Full Time position
Listed on 2026-06-18
Job specializations:
  • IT/Tech
    Systems Administrator, Unix/Linux, Cybersecurity, IT Support
Salary/Wage Range or Industry Benchmark: 84575 - 114425 USD Yearly USD 84575.00 114425.00 YEAR
Job Description & How to Apply Below

Overview

UNIX/Linux OS Administrator

Responsibilities
  • Perform systems administration for enterprise Linux/Unix solutions.
  • Install, configure, and maintain Linux/Unix operating systems.
  • Analyze and resolve problems associated with the operating system’s servers, hardware, applications, and software.
  • Monitor system performance and ensure compliance with security standards.
  • Monitor everyday system operations, evaluate the availability of all server resources, and perform activities for Linux servers.
  • Assist with configuring and deploying virtual machines and implement backups for configuration procedures.
  • Maintain and monitor all patch releases, design patch installation strategies, and maintain systems according to program standards.
  • Provide Tier 2 and 3 troubleshooting support, interfacing with end users and other technical teams from a service support perspective.
  • Conduct Security Technical Implementation Guide (STIG) compliance assessments, harden Linux systems according to DoD standards, and ensure adherence to security policies and procedures.
Qualifications
  • BS degree; may be substituted for additional years of experience
  • 3+ years of IT/DoD systems administration experience
  • Security Clearance Level: Top Secret with SCI eligibility
  • Required

    Certifications:

    ITIL 4 Foundation certified within 9 months of start; GFACT or CND or Security+ or GSEC
  • Location:

    Offutt AFB, NE
  • Strong experience with Linux distributions (RHEL, CentOS, Ubuntu, SUSE)
  • Experience with VMware, Hyper‑V, KVM, or cloud‑based VMs
  • Understanding of security hardening standards (DISA STIGs, CIS benchmarks)
  • OS patching and vulnerability remediation
  • SELinux or App Armor experience
  • Managing firewall rules (firewalld, iptables)
  • Secure configuration of SSH, PAM, sudo policies
  • Strong troubleshooting communication (translating technical issues)
  • Incident response and root‑cause analysis
  • Ability to escalate and collaborate with networking, storage, and security teams
Benefits
  • Excellent customizable health benefits (Medical, Dental and Vision)
  • 401K with company match
  • Educational Assistance and eLearning
  • Flexible work week
  • Internal mobility team dedicated to employee advancement
  • Rewards and Recognition programs
  • Innovative and collaborative environment encouraging highly motivated critical thinking

#SCITLS

The likely salary range for this position is $84,575 - $114,425. This is not, however, a guarantee of compensation or salary. Salary will be set based on experience, geographic location and contractual requirements and could fall outside of this range.

Additional Details
  • Scheduled Weekly

    Hours:

    40
  • Travel Required:

    None
  • Telecommuting Options:
    Onsite
  • Work Location:

    USA NE Offutt AFB

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

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