Sr. Linux Systems Engineer

CACI • Sterling, VA

10h

About The Position

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.

Requirements

• 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

Nice To Haves

• 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

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

Benefits

• 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.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level