MANTECH seeks a motivated, career and customer-oriented VDI Systems Administrator to join our team in Doral, FL . Responsibilities include but are not limited to: Installing, configuring, administering, and troubleshooting enterprise Virtual Desktop Infrastructure (VDI) environments (e.g., VMware Horizon, Citrix Virtual Apps and Desktops). Managing virtual desktop pools, golden image updates, user profiles, and virtual application publishing across operational networks. Performing routine system maintenance, hypervisor host patching, vulnerability updates, and diagnostic evaluations to maintain baseline performance. Monitoring virtual storage capacity, host resources, and system performance metrics to proactively resolve technical bottlenecks. Collaborating with cross-functional technical teams, network engineers, and site leadership to maintain optimal VDI availability. Maintaining accurate configuration management records, technical system documentation, and operational baseline inventories. Recommending and implementing continuous process improvements to streamline virtual desktop provisioning and user management.

Minimum Qualifications:

Bachelor's degree in Computer Science, Information Technology, Systems Engineering, or a related field with 5+ years of experience in systems administration and desktop virtualization. OR a master's degree and 3+ or more years of relevant experience OR an associate's degree and 7+ or more years of relevant experience OR a high school diploma and 9+ or more years of relevant experience Proven experience administering, configuring, and supporting enterprise VDI environments (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.

Preferred Qualifications:

Relevant professional certifications such as VMware Certified Professional - Desktop and Mobility (VCP-DTM), Citrix Certified Associate - Virtualization (CCA-V), or CompTIA Security+. 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 (ACAS). Demonstrated ability to collaborate effectively across multi-disciplinary engineering teams in fast-paced operational environments.

Clearance Requirements:

Must hold a current/active top secret security clearance.

Physical Requirements:

Must be able to remain in a stationary position 50%. Needs to occasionally move about inside the office to access file cabinets, office machinery, etc. Frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.