Windows Systems Administrator with Security Clearance

System Administrator (Windows) Program Description

We are seeking a Senior Systems Administrator to lead vulnerability remediation and system hardening across a primarily Windows-based enterprise environment. The role partners closely with INFOSEC to research, validate, and implement remediation actions while assessing system impacts and maintaining security and compliance requirements. The position supports ATO and system accreditation efforts, with Linux administration experience considered a plus.

The ideal candidate is proactive, self-driven, and able to independently manage remediation activities through completion with minimal oversight. Day to Day Responsibilities: Lead end-to-end vulnerability remediation based on INFOSEC priorities, including research, implementation, troubleshooting, and status reporting. Research and implement system hardening and security configurations aligned with STIGs, CIS Benchmarks, and organizational standards. Apply security changes across Windows environments, with Linux support where applicable, while assessing system and application impacts.

Design, implement, and troubleshoot Active Directory and Group Policy (GPO) security configurations. Disable insecure protocols, ports, and services and maintain secure encryption and cipher standards. Support ATO, accreditation, compliance, audits, and security assessments through remediation tracking and technical documentation. Provide evidence and reporting for patching, hardening, vulnerability remediation, and security control implementation. Coordinate remediation and patching activities with INFOSEC, WUS, and Client/Server teams.

Participate in Windows patching, including applicability assessment, testing, deployment support, and post-deployment validation. Troubleshoot complex patching, configuration, and policy issues to ensure systems meet security and compliance requirements. Communicate remediation strategies, risks, dependencies, and system impacts to technical stakeholders. Independently drive remediation efforts to completion, resolving blockers and ensuring compliance timelines are met.