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. An active Public Trust and/or DHS suitability is preferred. Must be a U.S. Citizen without dual citizenship.

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.

Job-Specific Minimum Requirements:

• Ability to obtain and maintain a Public Trust is required. An active Public Trust and/or DHS suitability is preferred. Must be a U.S. Citizen without dual citizenship.

• 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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Minimum Requirements

TCS221, T5, Band 8

Maximus is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, age, national origin, disability, veteran status, genetic information and other legally protected characteristics.

Minimum Salary

$115,000

Maximum Salary

$125,000