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General information
Job Posting Title
Senior Systems Administrator
Date
Friday, June 12, 2026
City
Remote
Country
United States
Working time
Full-time
Description & Requirements
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.
The Senior Systems Administrator supports IT operations by designing, automating, testing, and deploying large-scale patching and upgrade solutions. This role focuses on scalable infrastructure architecture, enterprise vulnerability remediation, and modernization efforts in support of secure, compliant, and highly available systems across on-premises, cloud, and hybrid environments.
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:
- 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.
- Develop and maintain technical documentation, standard operating procedures, and reporting artifacts to support auditability, compliance, and continuous service improvement.
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 and upgrade management across Windows and/or Linux environments.
- Experience remediating vulnerabilities in accordance with federal security directives.
- Automation and scripting for patching and configuration management (e.g., PowerShell, Bash, orchestration tools).
- Change, configuration, and release management in regulated enterprise environments.
- Systems engineering support for large-scale infrastructure deployments (on-prem, cloud, hybrid).
- Technical documentation and audit-ready reporting.
- 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, with demonstrated focus on patching and upgrade management.
Preferred Skills and Qualifications:
- Experience supporting federal government agencies.
- Familiarity with enterprise ITSM tools (e.g., ServiceNow) for change and incident tracking.
- Experience with image development, system hardening, and baseline configuration management.
- Exposure to cloud platform patching and lifecycle management (Azure and/or AWS).
- Strong collaboration skills supporting cross-functional engineering and operations teams.
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Minimum Requirements
TCS221, T5, Band 8
EEO Statement
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.
Pay Transparency
Maximus compensation is based on various factors including but not limited to job location, a candidate's education, training, experience, expected quality and quantity of work, required travel (if any), external market and internal value analysis including seniority and merit systems, as well as internal pay alignment. Annual salary is just one component of Maximus's total compensation package. Other rewards may include short- and long-term incentives as well as program-specific awards. Additionally, Maximus provides a variety of benefits to employees, including health insurance coverage, life and disability insurance, a retirement savings plan, paid holidays and paid time off. Compensation ranges may differ based on contract value but will be commensurate with job duties and relevant work experience. An applicant's salary history will not be used in determining compensation. Maximus will comply with regulatory minimum wage rates and exempt salary thresholds in all instances.
Accommodations
Maximus provides reasonable accommodations to individuals requiring assistance during any phase of the employment process due to a disability, medical condition, or physical or mental impairment. If you require assistance at any stage of the employment process-including accessing job postings, completing assessments, or participating in interviews,-please contact People Operations at applicantaccom@maximus.com.
Minimum Salary
$
100,000.00
Maximum Salary
$
115,000.00