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Posted August 20, 2026
Robert Half

Sr Systems Administrator

Jacksonville, FL 32256, US Temporary

Senior Systems Administrator

We are seeking a Senior Systems Administrator to support and maintain a multi-site Microsoft infrastructure environment. This role will be responsible for server administration, Active Directory management, Microsoft 365 support, virtualization, and Tier 3 troubleshooting.

Responsibilities

  • Administer Windows Server environments and Active Directory
  • Manage Microsoft 365, Exchange Online, Teams, Intune, and Azure AD
  • Configure and maintain Group Policies, DNS, and DHCP
  • Support VMware virtual infrastructure
  • Perform software deployment and patch management using SCCM
  • Serve as an escalation point for complex technical issues
  • Support onboarding and offboarding activities
  • Maintain documentation and technical procedures



Qualifications:

Qualifications

  • 5+ years of Systems Administration experience
  • Strong Microsoft 365 and Active Directory experience
  • Experience with VMware virtualization
  • Knowledge of SCCM and endpoint management
  • Excellent troubleshooting and customer service skills



Compensation

Based on experience

About Us

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.

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