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# Senior IT System Administrator

- **Company:** Integral Federal
- **Location:** Aberdeen Proving Ground, MD, United States
- **Experience:** Expert
- **Salary:** $110,000.0 - $138,000.0
- **Contract:** Permanent contract
- **Skills:** CompTIA Security+, Security Content Automation Protocol, Information Security Management System, Information Technology, Nessus, Plan of Action and Milestones, Vulnerability Analysis
- **Published:** September 22, 2026
- **Apply:** https://www.clearancejobs.com/jobs/8901696/senior-it-system-administrator

## About the Role

* BA/BS with a minimum of 5+ years of hands-on experience dedicated to applying RMF to complex DoD IT systems.
 * Certifications: Possess current, industry-standard certifications relevant to their specific duties (e.g., CompTIA Security+, CCNA, RHCSA, MCSA). Certifications must meet DoD 8570/8140 requirements for their assigned role (e.g., IAT Level II).
 * Technical Skills: Demonstrated mastery of eMASS, vulnerability scanning tools (e.g., ACAS/Nessus), COMSEC, and security compliance checkers (e.g., SCAP).
 * Top Secret/SCI security clearance.

## Description

The Senior IT System Administrator is responsible for the day-to-day administration, maintenance, and security of the JWICS environment for US Army G2's Intelligence Division (AMIS-IN), Security Division (AMIS-SE), and the Special Projects Office (SPO) (AMIS-SEP)., * RMF Execution: Lead all aspects of the RMF process, from system categorization and security control selection to implementation and assessment.

 * Security Documentation: Develop, maintain, and update all required RMF documentation, including the System Security Plan (SSP), Security Assessment Report (SAR), and Plan of Action & Milestones (POA&M).
 * eMASS Management: Manage the system's security posture within the Enterprise Mission Assurance Support System (eMASS), ensuring all data is accurate and up to date.
 * Continuous Monitoring: Implement and manage a robust continuous monitoring strategy to actively assess security control effectiveness, track vulnerabilities, and manage configuration changes.
 * Stakeholder Coordination: Serve as the primary security advisor to the system owner and liaise with the Authorizing Official (AO) and other key stakeholders to ensure a clear understanding of system risks and compliance status.