Senior Windows Systems & Security Admin

CACI International; Washington; On-site; USD 104,000 - 218,000; Full time

Job summary

CACI International in Washington, DC is seeking a Windows System Administrator to support FEMA OCISO. You will secure and manage Windows infrastructure, implement hardening, patching, identity management, and GPO enforcement across the FEMA enterprise.

Collaborate with cybersecurity professionals and system owners to maintain compliant configurations, perform vulnerability remediation, and ensure business continuity through ICAM and recovery processes.

Qualifications

• U.S. Citizenship required.
• FEMA EOD suitability or Current DHS or FEMA EOD preferred.
• BS/BA + 8 years of applicable experience or equivalent combination.
• Minimum 7 years of experience in Windows system administration.
• Demonstrated expertise in Windows Server infrastructure, Active Directory, and Group Policy.
• Experience with DISA STIGs and security hardening best practices.
• Knowledge of vulnerability remediation and patch management processes.
• Experience with identity and access management systems.
• Strong understanding of Windows security logging and auditing.
• Experience with VXRails or Zscaler.

Responsibilities

• The Windows System Administrator will build, harden, patch, and maintain Windows servers across the FEMA enterprise and ensure servers stay updated through consistent patching to maintain operational resilience, implementing security configurations and applying security patches promptly while ensuring compliance with DISA STIGs and agency‑specific security requirements.
• The Windows System Administrator will manage user accounts across the FEMA enterprise and manage Group Policy Objects (GPOs) enterprise‑wide to enforce security controls and permissions, ensuring consistent security configurations across Windows systems.
• Responsibilities include handling vulnerability remediation activities for Windows-based systems, managing digital certificates for authentication and encryption, and maintaining system logging for auditing and compliance.
• The position involves supporting ICAM (Identity, Credential, and Access Management) requirements and executing recovery processes to ensure business continuity.
• The Windows System Administrator will maintain technical documentation for all administrative actions and perform logging, certificates, and recovery processes.

Skills

Windows system administration

Active Directory

Group Policy

DISA STIGs

VXRails

Zscaler

Education

BS/BA in IT or related field

Tools

Windows Server

Job description

CACI International in Washington, DC is seeking a Windows System Administrator to support FEMA OCISO. You will secure and manage Windows infrastructure, implement hardening, patching, identity management, and GPO enforcement across the FEMA enterprise.

Collaborate with cybersecurity professionals and system owners to maintain compliant configurations, perform vulnerability remediation, and ensure business continuity through ICAM and recovery processes.