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# Senior Linux Systems Administrator / Systems Engineer (Day, Night or Weekend Shift - TS/SCI with Polygraph required)

- **Company:** Red Alpha
- **Location:** Annapolis Junction, MD, United States
- **Experience:** Expert
- **Salary:** $175,000.0 - $225,000.0
- **Contract:** Permanent contract
- **Skills:** Systems Engineering, CentOS, System Configuration, Linux, Electronic Data Interchange (EDI), Monitoring of Systems, JSON, WildFly (JBoss AS), Python (Programming Language), Linux System Administration, Oracle Databases, Red Hat Enterprise Linux, Ansible, Server Administration, Shell Script, Software Engineering, Systems Integration, Virtualization Technology, VMware Virtualization, Scripting, Enterprise Software Applications, System Availability, Information Technology, Terraform, Vmware
- **Published:** October 29, 2026
- **Apply:** https://www.careerbuilder.com/job-details/senior-linux-systems-administrator-systems-engineer-day-night-or-weekend-shift-ts-sci-with-polygraph-required-annapolis-junction-md--404ae478-6558-41b1-b952-3389a1a6e00c

## About the Role

Sensitive Compartmented Information (SCI), Systems Engineering, Top Secret Clearance, Linux Administration, Software Engineering, Linux Operating System, Software Administration, CentOS, Red Hat Linux Operating System, Linux Administration, * BS in Computer Science or a technical discipline from an accredited institution. Four (4) additional years of experience may be accepted in lieu of a degree.

 * 10+ years of relevant experience in systems administration.
 * Security+ certification
 * Proficiency with Linux (CentOS, RHEL)
 * Extensive experience installing, configuring, and maintaining JBoss and/or Wildfly
 * Experience with VMWare - VM creation, configuration, and operation

Bonus Skills:

 * Linux Administration Certification
 * Experience with RH Ansible
 * Familiarity with Oracle Databases and possibly DBA experience
 * Experience with storage, networking, security compliance, scripting (Python, Shell)

## Description

Senior Linux Systems Administrator / Systems Engineer (Day, Night or Weekend Shift - TS/SCI with Polygraph required), We are seeking a Senior Linux System Administrator/Engineer to support a highly available, mission-critical enterprise environment serving the Intelligence Community. This role is responsible for administering, maintaining, and optimizing Linux-based infrastructure, virtualized environments, and application platforms. The ideal candidate will have extensive experience with Red Hat/CentOS systems, VMware, system security, and enterprise application support, with a strong focus on operational reliability, performance, and compliance., * Administer, maintain, and troubleshoot enterprise Linux environments (RHEL/CentOS).

 * Support mission-critical infrastructure to ensure high availability, stability, and security.
 * Install, configure, maintain, and support JBoss application servers.
 * Create, configure, and manage VMware virtual machines and supporting infrastructure.
 * Implement system hardening, security controls, and compliance requirements.
 * Automate system administration tasks using Ansible, Terraform, shell scripting, and Python.
 * Manage and support physical servers, storage systems, networking, authentication services, and related infrastructure components.
 * Monitor system performance, identify issues, and perform troubleshooting and root cause analysis.
 * Support system integration efforts and collaborate with cross-functional technical teams.
 * Assist with Oracle database administration activities and support applications utilizing JSON-based data exchange.

*Please note, multiple shifts are available for this position include day (8 AM - 5 PM), night, and weekend shifts (12 hours).