Linux Systems Administrator

$68,400 - $143,700/Yr

CACI International - Hampton, VA

Full-time - Mid Level

Hampton, VA

Professional, Scientific, and Technical Services

About the position

We are seeking a skilled and experienced Red Hat Enterprise Linux Administrator with expertise in Puppet configuration management to join our IT team. The ideal candidate will play a crucial role in integrating, maintaining, and optimizing our Linux-based infrastructure, ensuring its stability, security, and scalability. This position requires a willingness to work onsite at Langley AFB and an active/current TS/SCI clearance. The role involves supporting real-time 24/7/365 operations in a shift work environment.

Responsibilities

• Install, configure, and maintain Red Hat Enterprise Linux servers and related software.
• Perform routine system monitoring, performance tuning, and troubleshooting to ensure system reliability and performance.
• Maintain Puppet manifests and modules to automate configuration and deployment tasks.
• Implement Puppet best practices to ensure efficient and consistent management of infrastructure resources.
• Perform version control and testing of Puppet code changes.
• Collaborate with other teams to provision and configure Linux servers to meet application and business requirements.
• Develop and maintain infrastructure as code (IaC) scripts and templates to facilitate server deployments.
• Install patches according to the Patch Management Plan leveraging Satellite and YUM.
• Respond and resolve service outages, technical queries and other system related issues.
• Create and maintain system documentation, including procedures and configurations.
• Train and assist other team members on Linux and job-related tasks.

Requirements

• Active TS/SCI security clearance.
• Minimum of Six (6) years' relevant IT work experience.
• Security + CE certification or equivalent.
• Proven experience as a Linux Administrator with a focus on Red Hat Enterprise Linux.
• Strong proficiency in Puppet configuration management, including writing/maintaining Puppet manifests and modules.
• Solid understanding of Linux server virtualization and containerization technologies (e.g., VMware, Docker).
• Knowledge of scripting languages (e.g., Ansible, Bash, Python) for automation tasks.
• Familiarity with version control systems (e.g., Git).
• Excellent problem-solving skills and the ability to work effectively in a team environment.

Nice-to-haves

• Bachelor's degree in computer science, information technology, or a related field (or equivalent work experience).
• Minimum of two year's DCGS experience.
• Relevant certification (e.g., RHCE, Puppet Certified Professional, Linux Essentials) are a plus.
• Experience with one or more of the following technologies: YUM, RedHat Satellite, Kickstart, Harbor, Kubernetes.
• Experience with shift work.

Benefits

• Healthcare benefits
• Wellness programs
• Financial benefits
• Retirement plans
• Family support
• Continuing education opportunities
• Flexible time off benefits