Linux System Administrator (onsite)

RTX RTX · Aerospace · cedar rapids, IA +1 · Digital Technology

RTX is seeking an Onsite Linux System Administrator in Cedar Rapids, IA, responsible for managing, maintaining, and troubleshooting IT infrastructure including Windows, Red Hat Linux, and Ubuntu servers. The role involves system updates, security configurations, performance monitoring, user management, network configuration, technical support, security audits, backup and recovery, and documentation. A DoD SECRET security clearance and DOD 8570 IAT Level II or higher certification are required.

What you'd actually do

  1. Install, configure, and maintain Windows, Red Hat Linux, and Ubuntu servers.
  2. Perform regular system updates, patches, and security configurations.
  3. Monitor system performance and ensure high availability and reliability.
  4. Manage user accounts, permissions, and access controls.
  5. Install and configure Red Hat Enterprise Linux (RHEL) systems.

Skills

Required

  • University Degree and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience
  • U.S. citizenship
  • DoD SECRET security clearance
  • DOD 8570 IAT Level II or higher
  • Extensive experience with applying DoD STIGs to RHEL and Ubuntu servers and workstations
  • Proven experience as a System Administrator with expertise in Windows, Red Hat Linux, and Ubuntu
  • Strong knowledge of network protocols, firewall management, and network security

Nice to have

  • Experience with virtualization technologies (VMware, KVM)
  • Familiarity with configuration management tools

What the JD emphasized

  • Active and transferable U.S. government issued security clearance is required prior to start date.​
  • U.S. citizenship is required
  • DoD Clearance: Secret
  • Active and existing security clearance required on day 1
  • DoD 8570 IAT Level II or higher
  • Extensive experience with applying DoD STIGs to RHEL and Ubuntu servers and workstations.