LinuxSystemAdministrator

**Date Posted:** 2026-05-12 **Country:** United States of America **Location:** US-IA-CEDAR RAPIDS-136 ~ 855 35Th St NE ~ BLDG 136 **Position Role Type:** Onsite **U.S. Citizen, U.S. Person, or Immigration Status Requirements: ** Active and transferable U.S. government issued security clearance is required prior to start date.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance​ **Security Clearance Type:** DoD Clearance: Secret **Security Clearance Status:** Active and existing security clearance required on day 1 Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense. Collins Aerospace is seeking a skilled System Administrator with extensive experience in Windows, Red Hat Linux, and Ubuntu operating systems. The ideal candidate will be responsible for managing, maintaining, and troubleshooting our IT infrastructure, ensuring optimal performance and security. **_**This is an onsite position in Cedar Rapids, IA**_** **What YOU will do:** _System Administration:_ * Install, configure, and maintain Windows, Red Hat Linux, and Ubuntu servers. * Perform regular system updates, patches, and security configurations. * Monitor system performance and ensure high availability and reliability. * Manage user accounts, permissions, and access controls. _Red Hat System Administration:_ * Install and configure Red Hat Enterprise Linux (RHEL) systems. * Manage software packages using YUM and RPM package management. * Implement and manage system security policies and SELinux. * Configure and troubleshoot network settings and services. * Perform system monitoring and logging using tools like Rsyslog. * Automate administrative tasks using shell scripting and Ansible. _Technical Support:_ * Pr