Sr Systems Administrator; Windows

Argo Cyber Systems is supporting a U.S. Government customer on a large mission critical development and sustainment program to design, build, deliver, and operate a network operations environment, including introducing new cyber capabilities to address emerging threats. As part of CISA IT's broader consolidation and modernization strategy, this role directly contributes to the establishment of a centralized patching core team-a strategic initiative to standardize, streamline, and fortify patch management across multi cloud Windows environments.

This position plays a key role in enhancing cybersecurity posture, improving operational efficiency, and driving consistent, proactive patching practices across CISA IT systems.

• support the design, deployment, and sustainment of enterprise Windows environments
• help build a unified, automated patching capability
• Standardize patch processes across CISA environments
• Prioritize critical updates aligned with CISA IT cybersecurity objectives
• Leverage automation to reduce manual effort and increase consistency
• Support metrics, transparency, and continuous improvement
• Engineer the design and implementation of standardized patching methodologies across AWS, AZURE, Google Cloud environments
• Automate patch identification and deployment using tools such as AWS System Manager Patch Manager
• Prioritize and execute critical updates in alignment with CISA IT Patch Management Guidelines
• Assist in baseline assessments to identify process gaps, inefficiencies, and automation opportunities
• Participate in efforts to refine patching workflows, metrics, and operational processes
• Integrate AWS, AZURE and Google native services to enhance performance, resilience, and scalability of patching and Dev Ops infrastructure
• Evaluate and implement AI capabilities to automate patch management processes
• Contribute to enterprise cloud and Dev Ops standards, guidelines, and best practices
• Serve as a central conduit between DOMino teams, government sponsors, and tenants during patching cycles
• Establish and track metrics such as patch compliance, deployment timelines, and automation achievements
• Participate in weekly/biweekly reviews to ensure alignment with evolving operational priorities
• Support iterative improvements based on stakeholder feedback and operational data.

• Must be a US Citizen
• Must have an active Secret clearance and be able to obtain a TS/SCI clearance
• Must be able to obtain DHS Suitability
• 8+ years of applicable, hands‑on experience
• Expertise with Windows Server 2022/2025 and administration.
• Experience building and securing Windows Servers
• Experience with Cloud Patch Management Administration

• AWS, AZURE, Google experience, including understanding of the Well Architected Framework; AWS, AZURE or Google Cloud certification preferred
• Experience with Service Now and SharePoint Server
• Advanced experience with Windows Server 2022/2025

• Bachelor's degree in systems engineering, Computer Science, Information Systems or related technical field. Two years of related work experience may be substituted for each year of degree level education.

• DoD 8570.1 IAT Level II
• AWS, AZURE or Google Cloud Certification