Maricopa County ยท 9 hours ago
Systems Administrator Senior
Phoenix, AZ
Full-time
Hybrid
Mid, Senior Level
$82K/yr - $104K/yr
4+ years expMaricopa County is dedicated to providing fair and equitable access to justice, and they are seeking a Senior Systems Administrator to enhance their IT services. The role involves managing on-premises and cloud-based systems, providing advanced support, and ensuring the reliability of critical infrastructure and services.
AssociationGovernmentHealth CareNon Profit
Responsibilities
Develop, maintain, and govern comprehensive technical documentation, including system architecture diagrams, configuration standards, inventories, and operational procedures, using tools such as Microsoft Visio, Microsoft Project, Jira, or similar platforms
Serve as a Tier 3 escalation resource for complex infrastructure and system issues, providing advanced troubleshooting, root-cause analysis, and guidance to Tier 1 and Tier 2 support teams
Monitor, assess, and optimize system performance, reliability, and capacity; recommend and implement improvements using established and emerging technologies
Conduct routine and ad-hoc security, backup, and recovery audits, ensuring alignment with disaster recovery, business continuity, and COSC security requirements
Administer, support, and optimize Windows Server environments (2016, 2019, 2022, 2025) and VMware virtual infrastructure, including compute, storage, networking, patching, and lifecycle management
Utilize PowerShell and other scripting tools to automate infrastructure administration, maintenance, and troubleshooting activities
Perform scheduled and emergency maintenance, participate in on-call rotations, and respond to afterhours operational incidents as required
Provide core infrastructure support across directory services, identity management, Group Policy, login scripts, storage platforms, networking components, and foundational services such as DNS and DHCP
Administer and support Microsoft identity and productivity platforms, including Active Directory (on premises and Azure AD), Microsoft 365 services (Exchange Online, SharePoint Online), and Azure hybrid identity configurations
Maintain and enforce infrastructure standards by keeping server images, firmware, configurations, and system software current and compliant with lifecycle and patch management practices
Support and maintain data center hardware and platforms, including Dell PowerEdge servers, PowerStore storage, and Cohesity backup solutions
Monitor, communicate, and escalate system outages, service interruptions, performance degradation, or security risks to minimize operational impact
Collaborate with internal teams, vendors, and external partners to plan, coordinate, and resolve infrastructure issues using IT industry standards and formal change management processes
Qualification
Required
Four years of relevant work experience aligning with duties and responsibilities of the role
Bachelor's degree from an accredited college or university in Computer Science, Information Technology, or related field, with at least
A combination of post-secondary education and/or job-related experience may substitute for the required education on a year-for-year basis
Preferred
Experience administering Windows Server environments (2016, 2019, 2022, 2025) with strong expertise in Active Directory (on-prem and Azure), Intune, and Microsoft 365 services including Exchange and SharePoint Online
Experience working in team-based delivery models (such as Agile, Scrum, and/or Kanban) across multiple concurrent initiatives
Experience troubleshooting complex infrastructure issues using diagnostic tools, analytical methods, and technical research
Experience with PowerShell automation, VMware vSphere, Azure hybrid identity, Microsoft SQL Server (2015+), and enterprise storage and backup solutions such as Cohesity
Relevant certifications such as Microsoft 365 Administrator, MCSE, or MCITP, or equivalent experience
Benefits
Tuition reimbursement
Exceptional work-life balance, with hybrid and alternative work schedule options
Opportunities for growth and development within Maricopa County
Low-cost, high-value healthcare for you and your qualifying dependents
Child care benefits including access to our on-site center Maricopa County Kids Club, dedicated to serving Maricopa County families exclusively
Paid vacation, sick time, and parental leave
Extensive wellness program, including healthcare premium discounts
Maricopa County participates in the Arizona State Retirement System. This defined retirement benefit requires a 12% monthly contribution rate and includes a 100% employer match on Day 1
Company
Maricopa County
Maricopa County is a regulatory agency whose goal is to ensure federal clean air standards are achieved and maintained.
10001+ employees
H1B Sponsorship
Maricopa County has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
2023 (1)
2022 (2)
2020 (1)
Funding
Current Stage
Late StageLeadership Team
Seema Patel
Chief Information Security Officer
Recent News
Government Technology US
2025-10-31
2025-01-07
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