Lead System Administrator

The Lead System Administrator will lead the enterprise Patch and Upgrade Management function. This role owns patch strategy, prioritization, risk-based remediation, and rollback planning across on-prem, cloud, and hybrid systems, ensuring secure, timely, and compliant vulnerability remediation.

Maximus is a trusted federal partner supporting mission-critical programs across national security, defense, and public service delivery. Our work focuses on sustaining, operating, and improving essential government systems and services, with proven operational excellence, and a commitment to mission success for our customers.

Joining Maximus means becoming part of a collaborative, mission-driven organization where teamwork, accountability, and professional growth are core to how we operate. We invest in our workforce through training, education, and career development, empowering professionals to deliver high-impact solutions while contributing to outcomes that matter at a national scale.

This position is contingent upon contract award and position availability. Selected candidates will receive a contingent offer of employment, which will become final only upon successful contract award to Maximus, availability of the position, and receipt of authorization to proceed.

Ability to obtain and maintain a Public Trust is required. Active Public Trust and/or DHS Suitability is preferred. U.S. citizenship or U.S. national status required.

Maximus TCS (Technology and Consulting Services) Internal Job Profile Code: TCS221, T5, Band 8

Job-Specific Essential Duties and Responsibilities:

• Serve as Lead Sys Admin, owning strategy, execution oversight, and risk-based decisioning across on-prem, cloud, and hybrid platforms.

• Identify, analyze, test, coordinate approvals for, and apply system, software, and hardware patches and upgrades in accordance with vulnerability management timelines.

• Direct prioritization and remediation of high-risk and known-exploited vulnerabilities, ensuring accountability for timely closure.

• Establish and maintain standard configuration baselines and secure system hardening practices across enterprise platforms.

• Design, test, and oversee rollback and contingency procedures to restore systems to a known good state following failed patches or upgrades.

• Recommend and document compensating controls and mitigations when vendor fixes are unavailable or delayed.

• Ensure comprehensive patch coverage across all IT and OT environments, coordinating closely with cybersecurity, change management, and operations teams.

Ability to obtain and maintain a Public Trust is required. Active Public Trust and/or DHS Suitability is preferred. U.S. citizenship or U.S. national status required.

• Enterprise Patch & Upgrade Management across Windows, Linux, network devices, and cloud platforms.

• Vulnerability remediation aligned to CVE, KEV, and ISVM guidance.

• IT/OT environment support (on-prem, cloud, hybrid).

• Secure configuration baselines and system hardening.

• Change, configuration, and release management processes.

• Rollback, contingency, and recovery planning.

• Technical leadership and cross-team coordination.

• Bachelor’s degree in Information Systems, Computer Science, Engineering, or related field (or equivalent experience).

• 10+ years of system administration experience, including enterprise scale patch and vulnerability management.

Preferred Skills and Qualifications:

• Experience supporting large federal enterprise environments.

• Familiarity with ServiceNow change and release workflows.

• Cloud platform experience (AWS and/or Azure).

• Strong written documentation and audit-support skills.

• Experience mentoring junior system administrators.- Security+ (or equivalent baseline certification).

• ITIL Foundation (or equivalent ITSM certification).

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$115,000

Maximum Salary

$125,000