Linux Systems Administrator

Configure, deploy, and maintain Linux-based server environments for USCENTCOM mission-critical infrastructure. Administer Red Hat and CentOS systems, manage core services (Apache, Nginx, DNS, DHCP, LDAP), and monitor performance and availability to resolve issues before they impact operations. Implement patches, updates, and security hardening aligned with DoD policies, manage SSL/TLS certificates, collaborate across infrastructure teams, and maintain technical documentation while mentoring junior administrators.