Senior Systems Administrator - Cloud & Security Automation

Maximus; United States; On-site; USD 100,000 - 115,000; Full time

Job summary

Maximus is seeking a Senior Systems Administrator to design, automate, test, and deploy large-scale patching and upgrade solutions across on-premises, cloud, and hybrid environments. The role emphasizes scalable infrastructure, vulnerability remediation, and modernization in support of secure, compliant systems.

Candidates must hold a U.S. citizenship or national status, be able to obtain a Public Trust, and bring 10+ years in systems engineering and enterprise administration with strong

Qualifications

• Bachelor’s degree in Information Technology, Computer Science, Engineering, or a related field.
• 10+ years of progressive experience in systems engineering and enterprise system administration.
• Experience in patching and upgrade management across Windows and Linux environments.

Responsibilities

• Design and implement enterprise-wide patching and upgrade strategies across on‑premises, cloud, and hybrid environments.
• Architect, automate, and maintain patching and upgrade workflows using scripting, orchestration, and configuration management tools to support large‑scale, repeatable deployments.
• Lead technical planning, testing, and execution of complex system upgrades, including operating systems, infrastructure platforms, and supporting services.
• Coordinate patch and upgrade activities through formal change, configuration, and release management processes, including documentation, rollback planning, and post-deployment validation.
• Monitor vulnerability sources (e.g., CVEs, KEVs, vendor advisories) and ensure timely remediation.
• Provide senior‑level technical support and guidance to system administrators, serving as an escalation point for complex patching, upgrade, and configuration issues.

Skills

PowerShell

Bash

Orchestration tools

Change management

Release management

Systems engineering

Audit reporting

ITSM tools

Cloud patching

Education

Bachelor’s degree in Information Technology, Computer Science, Engineering, or a related field

Tools

ServiceNow

Azure

AWS

Job description

Maximus is seeking a Senior Systems Administrator to design, automate, test, and deploy large-scale patching and upgrade solutions across on-premises, cloud, and hybrid environments. The role emphasizes scalable infrastructure, vulnerability remediation, and modernization in support of secure, compliant systems.

Candidates must hold a U.S. citizenship or national status, be able to obtain a Public Trust, and bring 10+ years in systems engineering and enterprise administration with strong