Sr. Linux Systems Engineer

Job Title: Sr. Linux Systems Engineer

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: TS/SCI with Polygraph

Employee Type: Regular

Percentage of Travel Required: Up to 10%

Type of Travel: Continental US

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The Opportunity:
CACI is looking for a Linux Administrator - DoD Environment to join our . The ideal candidate will be a self-starter with extensive experience in Linux systems administration, automation, security implementations, and integration with enterprise directory services. This position requires a current SCI clearance with polygraph.


Responsibilities:
 

• Install, configure, and maintain Linux operating systems on both physical and virtual environments using kickstarts

• Develop and maintain infrastructure as code using Puppet and Ansible            •

• Implement and maintain security configurations following Department of Defense (DoD) Security Technical Implementation Guides (STIGs)            •

• Proactively troubleshoot complex Linux-related issues and implement solutions            •

• Manage user access and authentication using Centrify and Active Directory            •

• Ensure compliance with DoD security policies and procedures            •

• Take initiative in improving systems, processes, and security measures            •

• Collaborate with other IT teams to maintain system reliability and security in a classified environment            •

Qualifications:

Required: 

• Active: TS/SCI with Full Scope Polygraph

• Bachelor's degree in computer science, Information Technology, or related field experience
• Current Security+ certification
• 5+ years of experience as a Linux Systems Administrator in a DoD or similar secure environment
• Proven experience installing and configuring Linux on physical servers and virtual machines
• Strong knowledge of Puppet and Ansible for configuration management and automation
• Active Directory integration
• Familiarity with Active Directory and LDAP
• Demonstrated ability to work independently and take initiative
• Excellent troubleshooting skills for Linux systems and applications
• Experience implementing and maintaining security configurations based on DoD STIGs
• Experience with Centrify for Linux

Desired:

• Additional relevant certifications (e.g., RHCE, LFCS, CISSP)
• Experience with network devices (routers, switches, firewalls) and cabling
• Knowledge of FISMA, NIST, and other security frameworks
• Experience with cloud platforms (AWS, Azure, or GCP) in classified environments
• Scripting skills in Bash, Python, or Perl Scripting skill

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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.

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Pay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor cate