Senior System Administrator - DoD RMF | Linux & Windows

CAE; Arlington (TX); On-site; USD 120,000 - 170,000; Full time

Benefits offered by this job

Comprehensive benefits package

Safe work environment

Professional development opportunities

Recognition program

Job summary

CAE USA Inc. seeks a mission-focused Senior System Administrator to support IT operations, advanced technical support, and cybersecurity readiness in a defense contracting environment.

The successful candidate will demonstrate expert proficiency in both Microsoft Windows and Linux systems administration, including hardening, deployment, configuration, maintenance, and patch management aligned with DoD cybersecurity requirements.

Qualifications

• BS/BA in an engineering, computer science, or information technology discipline; Master’s degree preferred.
• Minimum of 5 years of related experience.
• Linux System Administration.
• Windows System Administration.
• Windows Server System Administration.
• VMware Administration.
• Network Administration.
• Knowledge of hardware and command line tools.
• Event, audit, and syslog analysis.
• TCP/IP networking; managed switch/router setup.
• Scripting: bash, csh, Python, PowerShell.
• DoD Secret Clearance is required.
• US citizenship per contract requirements.
• Compliance with DoD 8140.03 (CISSP, Security+ and OS Certification).

Responsibilities

• Supporting building, documenting, and maintaining mixed Windows/Linux infrastructures.
• Setting up and managing software development environments.
• Creating, testing, updating and executing automated deployment procedures.
• Professional coordination with engineers and vendors to solve problems.
• Ensuring reliability and availability of infrastructure services.
• Contributes to lifecycle recommendations for infrastructure technologies.
• Answering technical questions.

Skills

Linux System Administration

Windows System Administration

VMware Administration

Network Administration

Scripting (PowerShell, Bash, Python)

System hardening

DoD compliance

Troubleshooting

Education

BS/BA in engineering, computer science, or information technology

Master’s degree preferred

DoD 8570 / Security+ or equivalent preferred

Tools

VMware

Cisco routers

HP/Aruba switches

Juniper switches

SCAP/Nessus

Job description

CAE USA Inc. seeks a mission-focused Senior System Administrator to support IT operations, advanced technical support, and cybersecurity readiness in a defense contracting environment.

The successful candidate will demonstrate expert proficiency in both Microsoft Windows and Linux systems administration, including hardening, deployment, configuration, maintenance, and patch management aligned with DoD cybersecurity requirements.