III Systems Administrator Security Clearance

Position: Staff III Systems Administrator with Security Clearance
Overview VTG is seeking a System Administrator, experienced with RHEL, with hands-on networking and cybersecurity compliance skills to maintain Linux systems and ensure DoD STIG/SCAP compliance using ACAS (Nessus) scanning. This position is responsible for system hardening, vulnerability management, data transfer operations, and audit readiness in a secure, off-line environment. The Systems Administrator will work with a small team based out of Manassas, VA.

This role will be performed primarily in a classified space, requiring in-office work 75%+ of the time. What will you do? Serve as a System Administrator responsible for deploying, patch and maintaining RHEL 8/9 servers and workstations. Automate with Ansible, Bash, and Python, Perform ACAS (Nessus) scans weekly/monthly; triage, remediate, and document findings. Apply DoD STIGs using SCAP content (OpenSCAP, SCC, Ansible STIG roles).

Run OSCAP compliance scans; generate SCAP/XCCDF reports for auditors. Maintain POA&M (Plan of Actions & Milestones) for open vulnerabilities. Support eMASS entries and RMF (Risk Management Framework) workflows. Do you have what it takes?

Required Qualifications:

* 8+ years of experience as a System Administrator (or similar role)
* IAT Level II (DoD 8570 Qualification Requirements)
* Extensive experience using Linux (RHEL 7, 8,
9)
* Excellent organizational, verbal and written communication skills.
* Experienced wit h ACAS
* Initiative, innovation, and resourcefulness.
* US Citizen with current SECRET Clearance Desired Qualifications/Skills/Abilities:
* RHEL / LINUX Administration
* Understanding of networking to include IDS, IPS with Forti Gate systems
* Evaluate STIG experience
* Understanding of software vulnerability assessment and mitigation
* Bachelor's degree
* Familiarity with the NIST Security Controls
* IAT Level II (DoD 8570 Qualification Requirements)
* Understanding of Cybersecurity and Compliance Travel Requirements:
* Some work may be performed remotely. Occasional travel 5% of the time