VDI Systems Administrator

MANTECH • Doral, FL

1d • Onsite

About The Position

MANTECH is seeking a motivated, career- and customer-oriented VDI Systems Administrator to join its team in Doral, Florida. The role supports enterprise Virtual Desktop Infrastructure environments, including VMware Horizon, Omnissa, and Citrix, across operational networks. The administrator maintains system performance, availability, configuration records, and technical documentation, and works with cross-functional technical teams, network engineers, and site leadership to improve VDI services.

The position requires a current, active Top Secret security clearance. It is full-time and onsite. Physical requirements include remaining stationary 50% of the time, occasionally moving around the office to access equipment and files, and frequently communicating with coworkers, management, and customers, including potentially delivering presentations.

Requirements

• Bachelor’s degree in Computer Science, Information Technology, Systems Engineering, or a related field and 5+ years of systems administration and desktop virtualization experience; alternatively, a master’s degree and 3+ years, an associate’s degree and 7+ years, or a high school diploma and 9+ years of relevant experience.
• Proven experience administering, configuring, and supporting enterprise VDI environments using VMware Horizon, Omnissa, or Citrix.
• Strong background in hypervisor administration (vSphere/ESXi), Active Directory Group Policies (GPOs), virtual storage management, and user profile orchestration.
• Experience maintaining system baselines, configuration management controls, and patch management schedules.
• Experience creating, maintaining, and communicating complex technical documentation and virtual infrastructure baselines.
• Must hold a current and active Top Secret security clearance.

Nice To Haves

• VMware Certified Professional - Desktop and Mobility (VCP-DTM), Citrix Certified Associate - Virtualization (CCA-V), or CompTIA Security+ certification.
• Prior experience supporting U.S. Military Command operations, Combatant Command environments, or Department of Defense enterprise technical environments.
• Familiarity with DoD STIG implementation, automated patch management, and vulnerability scanning tools such as ACAS.
• Ability to collaborate effectively across multidisciplinary engineering teams in fast-paced operational environments.

Responsibilities

• Install, configure, administer, and troubleshoot enterprise VDI environments such as VMware Horizon and Citrix Virtual Apps and Desktops.
• Manage virtual desktop pools, golden image updates, user profiles, and virtual application publishing across operational networks.
• Perform routine system maintenance, hypervisor host patching, vulnerability updates, and diagnostic evaluations to maintain baseline performance.
• Monitor virtual storage capacity, host resources, and system performance metrics to proactively resolve technical bottlenecks.
• Collaborate with cross-functional technical teams, network engineers, and site leadership to maintain optimal VDI availability.
• Maintain accurate configuration management records, technical system documentation, and operational baseline inventories.
• Recommend and implement process improvements to streamline virtual desktop provisioning and user management.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level