Note: The job is a remote job and is open to candidates in USA. Maximus is a trusted federal partner supporting mission-critical programs across national security, defense, and public service delivery. The Senior Systems Administrator supports IT operations by designing, automating, testing, and deploying large-scale patching and upgrade solutions, focusing on scalable infrastructure architecture and enterprise vulnerability remediation.
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
Skills
- Ability to obtain and maintain a Public Trust is required
- 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
- An active Public Trust and/or DHS suitability is preferred
- 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
Benefits
- Short- and long-term incentives as well as program-specific awards
- Health insurance coverage
- Life and disability insurance
- A retirement savings plan
- Paid holidays
- Paid time off
- Reasonable accommodations to individuals requiring assistance during any phase of the employment process due to a disability, medical condition, or physical or mental impairment
Company Overview