Senior System Administrator

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. This role is remote.

The Senior System Administrator provides senior‑level IT operations and ServiceNow platform administration support. The role supports enterprise IT/OT services with a focus on CMDB accuracy, ITSM/ITOM operations, system reliability, and compliance with federal standards.

Maximus TCS (Technology and Consulting Services) Internal Job Profile Code: TCS220, T4, Band 7

Job-Specific Essential Duties and Responsibilities:

• Provide senior‑level administration and operational support for ServiceNow ITSM and ITOM modules, ensuring platform stability, availability, and performance across the enterprise.

• Manage and maintain the Configuration Management Database (CMDB) as the authoritative source for configuration items, ensuring accurate data, reconciliation, and lifecycle management in accordance with agency processes.

• Configure and support workflows, integrations, user roles, access controls, and system enhancements within the ServiceNow platform to improve automation, standardization, and transparency of IT services.

• Support enterprise IT/OT service management operations, ensuring services meet agency requirements for reliability, scalability, and security.

• Perform troubleshooting, incident resolution, and root cause analysis for ServiceNow platform issues and IT service disruptions, documenting actions and outcomes in agency‑approved systems.

• Support configuration, change, and release management processes, ensuring updates, enhancements, and fixes are properly tested, approved, documented, and deployed.

• Provide enterprise Software Asset Management (SAM) tool support and ongoing maintenance as required.

• Ensure compliance with agency and federal IT standards, policies, and directives, and support continuous service improvement initiatives.

Job-Specific Minimum Requirements:

• Senior‑level experience administering and supporting ServiceNow ITSM and ITOM modules in an enterprise IT environment, including platform configuration, workflow management, user/role administration, and operational support.

• Demonstrated experience managing and maintaining an enterprise Configuration Management Database (CMDB), including configuration item lifecycle management, data accuracy, reconciliation, and governance in accordance with established IT service management processes.

• Experience supporting IT Service Management (ITSM) and IT Operations Management (ITOM) functions to ensure enterprise services meet reliability, scalability, and security requirements.

• Proven ability to support incident, problem, change, configuration, and release management processes, including troubleshooting, root cause analysis, documentation, and coordination across technical teams.

• Experience administering enterprise platforms in compliance with federal IT standards, policies, and directives, supporting auditability and operational transparency.

• Experience supporting enterprise monitoring, asset management, or software asset management (SAM) tools, including maintenance and operational support.

• Ability to document system configurations, operational procedures, and service management activities using government‑approved systems and tools.

• Bachelor’s degree in Information Technology, Computer Science, or a related discipline (or equivalent experience)

• 8+ years of progressive experience in systems administration and enterprise IT operations, including senior‑level platform or tool administration

Preferred Skills and Qualifications:

• Advanced experience administering ServiceNow ITSM/ITOM modules in a large enterprise environment

• Strong CMDB governance, data integrity, and discovery/reconciliation experience

• Experience supporting federal IT environments and compliance with agency standards

• Familiarity with configuration, change, and release management processes

• Experience supporting enterprise monitoring, asset management, and service reliability initiatives

• Strong documentation, communication, and stakeholder coordination skills

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Minimum Requirements

TCS220, T4, Band 7

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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

$70,000

Maximum Salary

$100,000