Kratos Defense & Security Solutions, Inc. logo

Security System Administrator

Kratos Defense & Security Solutions, Inc.

Colorado Springs, COJob$111–131K/yrSeen 1w agoSeen in employer's feed 5 days ago

Most applications go out cold — see where you stand first. No sign-up to start.

Watch jobs like this.

At a glance

Compensation
$111–131K/yr
Location
Colorado Springs, CO
Work Authorization
Not specified

Olive lists jobs from US employers, including remote roles you can work from the United States.

Requirements

Credentials this posting asks for.

IAT II Industry CertificationTS/SCI clearanceBachelor's degree

Job overview

Kratos Space seeks an experienced System Administrator III to administer and secure Windows and Linux systems, virtualization infrastructure, and network devices. The role supports cybersecurity controls, vulnerability remediation, incident response, access management, and security documentation, while developing automation and troubleshooting complex systems. The posting prefers 5–8 years of relevant experience and experience supporting government customers.

Skills & qualifications

RequiredNice to have

Skills

Windows AdministrationLinux AdministrationCybersecurityGovernment Customer SupportTS/SCI Systems AdministrationNIST SP 800-53DISA STIGsSCAP Compliance CheckerEvaluateSTIGSTIG ViewerVirtualization PlatformsEnterprise FirewallsManaged Network SwitchesPowerShellBashPython

Qualifications

DoW TS/SCI ClearanceBachelor's in IT or Cybersecurity5+ Years Systems Administration or Cybersecurity ExperienceIAT II Industry Certification

Full job description

Job Descriptions:

Ready for What’s Next? Kratos is a company that strives to innovate and collaborate to make the world a better place. From ground control to outer space, you can contribute to work that matters with a company where diversity, integrity and inclusion are shared values. We’re committed to fostering an environment for every teammate that’s welcoming with great opportunity for professional growth. Find your future together with us. Kratos Space is seeking an experienced System Administrator III to join our team with the following primary responsibilities:

  • Administer and maintain physical and virtual Windows and RHEL Linux servers and associated infrastructure.

  • Configure, secure, monitor, troubleshoot, and maintain operating systems, applications, virtualization platforms, and network devices.

  • Administer Microsoft Active Directory, Group Policy, user and computer accounts, authentication mechanisms, and access controls.

  • Manage Linux systems, including user access, services, package management, SSH, system security, logging, and security configurations.

  • Administer and maintain virtualization infrastructure, including virtual machines, hypervisors, virtual networking, and associated security controls.

  • Implement and maintain secure configuration baselines for operating systems, applications, network devices, and virtualization platforms.

  • Apply security patches, updates, and configuration changes in accordance with established patch management procedures.

  • Support vulnerability assessments and remediate identified vulnerabilities within established timelines.

  • Support incident response activities, including identification, containment, investigation, remediation, and recovery.

  • Implement and maintain access controls based on least privilege and separation-of-duties principles.

  • Manage privileged and administrative accounts and support periodic access reviews

  • Support the implementation and ongoing operation of security controls required by NIST 800-53.

  • Support activities in the development and maintenance of System Security Plans (SSPs), Plans of Action and Milestones (POA&Ms), configuration documentation, network diagrams, asset inventories, and other cybersecurity documentation.

  • Maintain accurate records of system configurations and administrative actions.

  • Develop and maintain scripts and automation to improve system administration, security validation, compliance monitoring, and evidence collection.

  • Participate in security reviews, configuration audits, vulnerability assessments, penetration testing activities, and other cybersecurity assessments.

  • Troubleshoot complex problems spanning operating systems, applications, virtualization, networking, authentication, and security technologies.

  • Ensure system changes are appropriately tested, documented, authorized, and implemented.

  • Maintain awareness of emerging vulnerabilities, security threats, technologies, and applicable cybersecurity requirements.

  • Perform other duties related to the secure operation and maintenance of the enclave as assigned.

Required Experience:

  • Current or ability to obtain a DoW TS/SCI

  • BS in Information Technology, Cybersecurity, or similar subject

  • 5-8 years of hands-on systems administration or cybersecurity experience preferred, with experience supporting Windows and Linux environments, preferably supporting a government customer

  • Industry Certification to meet DoDD 8140.03 IAT II requirements. (Security+, CASP+, etc.)

Preferred Skills/Experience

  • Experience administering systems within a TS/SCI environment

  • Experience implementing or maintaining NIST SP 800-53 controls

  • Experience with DISA STIGs and/or other system-hardening standards

  • Experience with DISA/DoW cybersecurity tools such as SCAP Compliance Checker, EvaluateSTIG, and STIG Viewer

  • Experience with VMware, Hyper-V, or other enterprise virtualization platforms

  • Experience with enterprise firewalls and managed network switches

  • Experience developing PowerShell, Bash, or Python automation

#LI-Onsite

The grade-based pay range for this job is listed below. Individual salaries within that range are determined through a wide variety of factors including but not limited to education, experience, knowledge, and skills.

Competitive salary based on experience and educationSalary Range: $111,000-$131,000

Kratos is valued for our ability to design and deliver leading edge, resilient solutions for aerospace communication, control, awareness and mission success across a continuum of offerings—from commercial to tailored custom solutions and integrated programs. Customers trust us to stay relevant and know we are in it for the long-haul. We bring both the capability and confidence that our customers value and depend on. And we always deliver.

This posting will close within 90 days from the Posting Date.

Keyword: Security System Administrator

Kratos Defense is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, pregnancy, genetic information, disability, status as a protected veteran, or any other protected category under applicable federal, state, and local laws.

Disability Accessibility Accommodation

If you require an accommodation to navigate or apply to our careers site, please send your request to [email protected] or call 858-964-2916. Any inquires not related to requesting an accommodation will be discarded.

Pay Transparency

The company will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant.

Job Applicant Privacy Notice

For applicants in the EU and California residents, please review our privacy notice.

From: Kratos Defense

How this job compares

Set against the 920 open System Administrator jobs on Olive Jobs, counted October 27, 2026.

Pay
  • This posting$111–131K/yr
  • Colorado median$96–145K/yr47 salary ranges
  • US median$88–132K/yr621 salary ranges

This range's midpoint, $121K, is 3% below the Colorado median midpoint ($125K) — in the middle half of System Administrator salary ranges in Colorado.

Openings
Olive Jobs lists 52 open System Administrator jobs in Colorado and 920 across the US. 3% of them nationwide are listed as remote or flexible.
Experience
System Administrator postings that state a minimum ask for 4 years of experience at the median; the middle half ask for 2 to 6 years (716 postings).
Education
This posting asks for a bachelor's degree; 401 of the 920 open System Administrator jobs (44%) ask for a bachelor's degree or higher.

Counted across the open, public US postings on Olive Jobs on October 27, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.

Similar jobs, posted recently

Open roles like this one, listed in the last 30 days.

You've read the whole posting — now see how you match it.