Sr. Linux Systems Engineer

CACISterling, 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.
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