Systems Administrator with Security Clearance

• ***Must Have Active Top Secret Security Clearance Must Sit ONSITE****
• ***Must Have Current Security +CE or IAT Level II Certification**** Skillset: RMF Administrator (Windows and Linux)

Require a team member that has significant experience with JSIG/RMF implementation. Patching, Remediation, and end-point security.
High value tool experience: Ivanti and Trellix Job Description
Key Responsibilities
Administer, maintain, secure, and troubleshoot Windows and Linux servers and endpoints within classified environments.
Support implementation and ongoing compliance activities associated with JSIG and RMF requirements.
Perform operating system and application patching, vulnerability remediation, configuration management, and security hardening.
Identify and remediate vulnerabilities and configuration findings across Windows and Linux environments.
Apply and maintain DISA STIG-aligned system configurations and security controls.
Support vulnerability scanning, analyze findings, and drive technical remediation through closure.
Administer and support endpoint security solutions, including policy implementation, agent deployment, maintenance, troubleshooting, and remediation.
Support Trellix endpoint security technologies and related endpoint protection activities.
Leverage Ivanti for applicable endpoint/system management, patching, and remediation activities.
Partner with cybersecurity, infrastructure, system engineering, and program stakeholders to resolve security findings and maintain compliant system configurations.
Maintain accurate technical documentation supporting system configurations, remediation activities, security controls, and audit/readiness requirements.
Participate in continuous monitoring and ongoing security posture improvement of classified systems.
Additional Skills & Qualifications
Active Top Secret security clearance.
CompTIA Security+ certification.
Significant hands-on experience administering both Microsoft Windows and Linux operating systems.
Demonstrated experience implementing technical requirements associated with JSIG and RMF in classified or DoD environments.
Strong hands-on experience with:
System and application patching
Vulnerability remediation
Endpoint security
System hardening
Security configuration management
Experience implementing and remediating DISA STIG requirements.
Experience supporting classified infrastructure and working within established DoD cybersecurity requirements.
Ability to troubleshoot security and system-administration issues rather than functioning solely in a governance/documentation capacity. Hands-on administration of Trellix / McAfee ePO / Trellix Endpoint Security.
Experience with Ivanti endpoint management, patch management, or related security capabilities.
Experience with vulnerability scanning and remediation technologies such as Nessus and SCAP-based tooling.
Experience with enterprise Active Directory and Group Policy.
Experience automating system administration or remediation tasks using PowerShell, Bash, Ansible, or Python.
Experience supporting RMF continuous-monitoring activities. Trellix is worth keeping prominent rather than burying as a generic "nice to have." A current defense-focused Trellix administrator posting describes hands-on responsibilities around policy configuration, agent deployment, module upgrades, compliance monitoring, vulnerability status, incident support, and remediation of misconfigurations.