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

To find more great tech-centric jobs, please visit www.phoenixstaff.com.