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Systems Administrator

Robert HalfMesa, AZ🇺🇸United StatesPosted Sep 18, 2026

Quick Overview

Seniority
Mid Senior
Work mode
Hybrid
Location
Mesa, AZ, United States
Posted
Yesterday
Active DirectoryTechnical Support

Job Description

Description
We are looking for a Systems Administrator to support and maintain a reliable enterprise technology environment in Mesa, Arizona. This role focuses on keeping core infrastructure running smoothly, resolving technical issues efficiently, and strengthening day-to-day system performance across server and desktop platforms. The ideal candidate brings hands-on experience with Microsoft technologies and virtualization tools, along with a practical approach to troubleshooting and user support.

Responsibilities

Administer and maintain Windows-based server environments to ensure stability, security, and consistent uptime. Manage Active Directory services, including user accounts, group policies, access controls, and directory health. Support and troubleshoot Windows 10 endpoints, addressing hardware, software, and operating system issues for end users. Monitor system performance and apply updates, patches, and configuration changes to keep infrastructure operating effectively.

Provide technical support for Dell hardware platforms, coordinating diagnostics, maintenance, and issue resolution as needed. Maintain and support Citrix environments to enable dependable remote access and application delivery. Investigate recurring technical problems, identify root causes, and implement long-term fixes to improve system reliability. Document configurations, support procedures, and administrative changes to promote consistency and operational continuity. Requirements
Hands-on experience administering Active Directory in a business environment.

Strong working knowledge of Microsoft Windows Server and core system administration practices. Experience supporting Microsoft Windows 10 devices in a business setting. Familiarity with Dell Technologies hardware and related infrastructure support. Practical experience with Citrix administration or user environment support. Ability to diagnose technical issues methodically and resolve problems with minimal supervision. Strong written and verbal communication skills for working with users and internal teams. 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 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.

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