System Administrator III

Title: System Administrator III Location: Tempe, AZ Type: Full-Time Permanent Compensation: $97-120k This position is responsible for leading the design, stability, and continuous improvement of enterprise infrastructure across both cloud and on-premises environments. The role focuses on ensuring systems are secure, scalable, and reliable while supporting business-critical operations. It also plays a key part in guiding technical teams, driving modernization efforts, and aligning infrastructure capabilities with organizational needs. Your Role Design and deploy resilient infrastructure solutions across Windows Server, virtualization platforms, and cloud environments to support business operations. Oversee enterprise virtualization platforms including Nutanix, VMware, and Hyper‑V, ensuring performance, high availability, and disaster recovery readiness. Manage and enhance Azure services such as IaaS, file services, and hybrid identity integrations with on‑premises systems. Evaluate and introduce new infrastructure technologies, aligning solutions with long‑term business and IT strategies. Perform capacity planning, system tuning, and lifecycle management to optimize performance and resource utilization. Administer storage environments including SAN, NAS, backup systems, and cloud storage to maintain data integrity and availability. Implement and maintain security controls such as access management, system hardening, and audit compliance across infrastructure systems. Coordinate patching and vulnerability remediation efforts while minimizing operational disruption. Provide mentorship and technical guidance to team members, promoting best practices and continuous improvement. Act as an escalation point for complex infrastructure issues and lead efforts to resolve critical incidents. Collaborate with cross‑functional teams to deliver integrated infrastructure solutions. Develop operational standards, automation strategies, and process improvements to increase efficiency and service quality. Maintain core services including Active Directory, DNS, DHCP, and related systems to ensure reliability. Manage secure file‑sharing environments and external data exchange processes with appropriate controls. Oversee backup and recovery operations to ensure critical data is protected and recoverable. Create and maintain technical documentation covering architecture, configurations, and procedures. Communicate technical concepts clearly to stakeholders and provide timely updates on system status and issues. Own issues from identification through resolution, ensuring documentation and knowledge transfer are completed. What You’ve Got Eight or more years of experience supporting and designing enterprise‑level Windows Server environments. Five or more years working with virtualization platforms such as Nutanix, VMware, or Hyper‑V in production environments. Four or more years of experience with Microsoft Azure, including cloud services, hybrid connectivity, and migrations. Strong knowledge of infrastructure fundamentals including TCP/IP, DNS, DHCP, Active Directory, Group Policy, and file services. Experience supporting systems tied to enterprise applications and databases such as SQL or Oracle. Solid background in storage technologies, backup solutions, and disaster recovery planning. Ability to define and enforce technical standards, operational processes, and best practices. Demonstrated experience mentoring team members and contributing to process improvements. Strong problem‑solving skills with a proactive approach to identifying and preventing issues. Clear communication skills with the ability to explain technical concepts to both technical and non‑technical audiences. Bachelor’s degree in Information Technology, Computer Science, or a related field, or equivalent experience. Industry certifications such as Microsoft, VMware, Nutanix, or Azure credentials preferred. Benefits Medical, dental, and vision insurance 401(k) plan #J-18808-Ljbffr Phoenix Staff, Inc.