Linux Systems Administrator

SITEC Consulting•Lexington Park, MD

16d

About The Position

SITEC is an employee- and customer-focused Information Technology and Professional Services firm specializing in the design, development, and delivery of state-of-the-art technology solutions, as well as cybersecurity, software, and systems engineering services. The Linux Systems Administrator installs, configures, and manages Red Hat Linux operating systems and related toolsets. The role supports application deployment using containerization concepts and helps manage orchestration tools such as Kubernetes or Docker Swarm. It also uses Ansible and other scripting tools to automate routine maintenance, server builds, and patching. Working within an Agile scrum methodology, the administrator provides infrastructure support to software development teams and helps maintain CI/CD pipelines for containerized applications. The position includes continuous system monitoring, scanning, and hardening to maintain compliance with NAVAIR and DISA policies; applying DoD STIGs and other cybersecurity compliance actions; maintaining system documentation and event logs; and responding to system failures to support high application availability.

Requirements

At least 5 years of hands-on experience working with UNIX/Linux and Windows.
Experience building, maintaining, and troubleshooting Linux servers, including Red Hat and CentOS.
Must be DoD 8140 and 5239 compliant, including Security+ certification and an OS certificate or certification.
Experience with DoD Information Assurance/Cyber policy, specifically implementing STIGs and system hardening.
Active Secret clearance required, with the ability to obtain a Top Secret clearance.
Must be a U.S. citizen.

Nice To Haves

Experience with VMware Tanzu.
Experience with CI/CD pipelines for containerized applications.
Experience with Ansible.

Responsibilities

Install, configure, and manage Red Hat Linux operating systems and related toolsets.
Support application deployment using containerization concepts and assist with managing orchestration tools such as Kubernetes or Docker Swarm.
Use Ansible and other scripting tools to automate routine maintenance, server builds, and patching.
Provide infrastructure support to software development teams using an Agile scrum methodology.
Help maintain CI/CD pipelines for containerized applications.
Continuously monitor, scan, and harden systems to maintain compliance with NAVAIR and DISA policies.
Apply DoD STIGs and perform other cybersecurity compliance actions.
Maintain system descriptions, procedures, event logs, and other knowledge-base documentation.
Respond to system failures to support high availability for applications.
Build, maintain, and troubleshoot Linux servers.