Description We are looking for a skilled Systems Administrator to join our team in Boston, Massachusetts. This is a Contract-to-permanent position, offering an excellent opportunity to work on high-impact projects and maintain critical IT infrastructure. The role requires expertise in on-premises systems, including Microsoft Exchange, Active Directory, and virtualization technologies. Responsibilities: • Manage and maintain on-premises Microsoft Exchange servers, ensuring optimal performance and reliability. • Perform advanced scripting tasks using PowerShell to automate administrative functions and streamline processes. • Administer Active Directory environments, including group policy management and user account maintenance. • Oversee virtual desktop infrastructure (VDI) using VMware Horizon, ensuring seamless user experiences. • Plan and execute upgrades to Microsoft Exchange, including migration to Exchange Server 2019. • Collaborate with team members to create and deploy Windows 11 virtual desktops before project deadlines. • Conduct server maintenance and troubleshooting tasks to ensure system stability and security. • Implement and support change management processes as the organization transitions to enhanced systems. • Monitor and manage server environments, focusing on command-line operations as GUI tools are phased out. • Provide ongoing support and maintenance for IT systems, ensuring consistent operation and user satisfaction. Requirements • Minimum of 5 years of experience in systems administration, with a focus on on-premises environments. • Proficiency in Microsoft Exchange Server administration and upgrades. • Strong skills in PowerShell scripting and command-line operations. • Solid understanding of Active Directory, including group policy management and user account configurations. • Hands-on experience with VMware Horizon and virtual desktop infrastructure (VDI). • Familiarity with Windows Server 2016 and 2019 administration. • Ability to manage and deploy Windows 11 virtual desktops. • Excellent problem-solving skills and the ability to work collaboratively with team members. 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 “Apply Now,” you’re agreeing to Robert Half’s Terms of Use (https://www.roberthalf.com/us/en/terms) .