Defense Systems Administrator - Active Secret Clearance

Acara Solutions, An Aleron Company; Colorado Springs (CO); On-site; USD 62,000 - 69,000; Full time

Job summary

Acara Solutions, An Aleron Company, is seeking a contract Systems Administrator in Colorado Springs for a 6- to 12-month engagement. The role focuses on securing Windows systems, patch management, and providing reliable user support under ConMon requirements.

Responsibilities include system hardening per NIST 800-53, vulnerability scanning and remediation, VMware administration, backups with Macrium, and enforcing least privilege. A current Secret clearance or recent clearance is required.

Qualifications

• Min 7 years of systems administration experience with NIST 800-series controls.
• Min 5 years of MS Windows administration experience.
• Min 2 years of vulnerability scanning and remediation.
• Min 1 year of VMware experience.

Responsibilities

• System Hardening and Configuration to meet NIST baselines and ConMon requirements.
• Patch Management and System Maintenance for OS, antivirus, and network devices.
• User Support and Incident Response to minimize operational disruptions.
• Vulnerability Scanning and Remediation with monthly scans and follow-up actions.
• UWAN Monitoring and Support to maintain secure connectivity.
• General Systems Administration including desktops, servers, VMware, SecureStux, and Macrium imaging.
• Enforce least privilege and separation of duties for ISSM/ISSO vs. admin tasks.

Skills

Systems administration

NIST 800-series controls

Windows administration

Vulnerability scanning

VMware

Education

Bachelor's degree (BSCS or similar)

Job description

Acara Solutions, An Aleron Company, is seeking a contract Systems Administrator in Colorado Springs for a 6- to 12-month engagement. The role focuses on securing Windows systems, patch management, and providing reliable user support under ConMon requirements.

Responsibilities include system hardening per NIST 800-53, vulnerability scanning and remediation, VMware administration, backups with Macrium, and enforcing least privilege. A current Secret clearance or recent clearance is required.