Description We are seeking a skilled and customer-focused Systems Administrator to join a growing IT team in the Phoenix area. This professional will be responsible for the administration, maintenance, security, and optimization of the organization's IT infrastructure, including servers, operating systems, cloud environments, virtualization platforms, and enterprise applications. The ideal candidate brings strong troubleshooting abilities, a proactive mindset, and experience supporting both on-premises and cloud-based technologies. Key Responsibilities

+ Administer and maintain Windows and/or Linux server environments.

+ Manage Active Directory, Group Policy, DNS, DHCP, and Azure Active Directory/Entra ID.

+ Monitor system performance and ensure high availability of infrastructure and business-critical systems.

+ Install, configure, update, and patch servers, operating systems, and enterprise applications.

+ Support virtualization environments such as VMware vSphere and Microsoft Hyper-V.

+ Manage Microsoft 365 services, including Exchange Online, Teams, SharePoint, and OneDrive.

+ Assist with cloud infrastructure administration in Azure and/or AWS environments.

+ Perform backup, recovery, and disaster recovery planning and testing.

+ Troubleshoot escalated hardware, software, networking, and connectivity issues.

+ Maintain endpoint management solutions and deploy security updates across the environment.

+ Implement and enforce cybersecurity best practices, including access controls, endpoint protection, and vulnerability remediation.

+ Create and maintain technical documentation, system diagrams, and operational procedures.

+ Collaborate with help desk, network engineering, security, and business stakeholders on infrastructure initiatives.

+ Support IT projects including system upgrades, migrations, deployments, and cloud transformations.

+ Participate in on-call rotation and provide after-hours support when necessary. Requirements Required Qualifications

+ Bachelor's degree in Information Technology, Computer Science, or related field; equivalent experience considered. + 3+ years of experience in systems administration or infrastructure support.

+ Strong experience with Windows Server administration.

+ Experience supporting Active Directory, Group Policy, DNS, and DHCP.

+ Knowledge of Microsoft 365 administration.

+ Experience with virtualization technologies such as VMware or Hyper-V.

+ Familiarity with backup and disaster recovery solutions.

+ Understanding of networking fundamentals including TCP/IP, VPNs, firewalls, and switches.

+ Strong troubleshooting and problem-solving skills.

+ Excellent communication and customer service abilities. Preferred Qualifications

+ Experience with Microsoft Azure and/or Amazon Web Services (AWS).

+ Experience with PowerShell or other scripting languages.

+ Exposure to enterprise security tools and compliance frameworks.

+ Experience with infrastructure monitoring and management tools.

+ Industry certifications such as: +

Microsoft Certified:

Azure Administrator Associate +

Microsoft Certified:

Windows Server Hybrid Administrator

+ CompTIA Server+

+ CompTIA Security+

+ VMware Certified Professional (VCP) Technology Doesn't Change the World, People Do.® Robert Half is the world's first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles. Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app (https://www.roberthalf.com/us/en/mobile-app) and get 1-tap apply, notifications of AI-matched jobs, and much more. All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information. © 2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking "," you're agreeing to Robert Half's Terms of Use (https://www.roberthalf.com/us/en/terms) and Privacy Notice (https://www.roberthalf.com/us/en/privacy) .