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Linux System Administrator

Linux System Administrator

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: TS/SCI

Employee Type: Regular

Percentage of Travel Required: Up to 10%

Type of Travel: Continental US

* * *

The Opportunity:

CACI is seeking a System Administrator to support operations and maintenance (O&M), limited research and development (R&D), and procurement of data/information processing capabilities on the SCION IV contract. You will get to work with an interdisciplinary engineering team, supporting the dynamic United States Space Force Space Operations Command (SpOC). You will provide engineering expertise across a varied set of hardware, software and mobile equipment. Communicate highly technical information to all levels of the USSF command teams and subordinate units. You will have the opportunity to work with both co-located and remote engineering teams across the globe, along with providing on-site support to exercise events throughout the year.

Responsibilities:

  • You will get to research, implement, and deploy tools in a continuously evolving operational environment.
  • You will work with a team of software and hardware engineers to bring newest COTS and open-source technologies into the DOD.
  • Design, Build, and deploy bare metal and VM based hardware environments in support of software developers and systems to be deployed to customer locations
  • Patch existing RHEL/CENTOS environments
  • Implement new tools to support software development, process automation, and patch management
  • Install, configure, test, and deploy network switches and firewalls
  • Deploy developed tools and techniques
  • Installs, configures and tests software package
  • Support to Application/Database application migration activities.
  • Design/Configuration of Storage Technologies
  • Development of scripts for automation of build-out and configuration of virtualized systems


Qualifications:

Required

  • Security+
  • Red Hat Certified System Admin (RHCSA) or ability to earn within 6 months of start
  • College Degree (BA/BS) or minimum 3 years of related work experience
  • Experience with system administration, installation, testing and optimization
  • A current TS/SCI clearance is required. CI Polygraph may be required for Special Access Programs (SAP).
  • CentOS/RHEL/Fedora Administration Versions 6, 7, 8, and 9
  • Experience building and maintaining LDAP/IPA/IDM servers
  • Puppet 4/5 & Cobbler
  • Spacewalk/Satellite - building/updating/maintaining
  • Docker/Openstack
  • A willingness to learn, teach and share information in a co-located and remote team environment


Desired:

  • Familiarity with HP hardware and firmware upgrade
  • Web/java scripting is helpful
  • Experience with RMF process
  • RedHat certified engineer (RHCE)
  • Understanding of the OSI model and networking principles
  • Understanding of DOD acquisition practices
  • Understanding of signal analysis
  • Knowledge of Intelligence Community (IC) processes, policies and guidance
  • Familiarity with Cisco networking equipment

-

________________________________________________________________________________________

What You Can Expect:

 

A culture of integrity.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.

 

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy. 

 

Your potential is limitless. So is ours.

Learn more about CACI here.

________________________________________________________________________________________

Pay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits. Learn more here.

The proposed salary range for this position is:

$75,200-$158,100

CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.

Average salary estimate

$116650 / YEARLY (est.)
min
max
$75200K
$158100K

If an employer mentions a salary or salary range on their job, we display it as an "Employer Estimate". If a job has no salary data, Rise displays an estimate if available.

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DATE POSTED
October 24, 2025
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