VDI Systems Administrator

MANTECH; Miami (FL); On-site; USD 85,000 - 125,000; Full time

Job summary

MANTECH seeks a motivated VDI Systems Administrator to join our team in Doral, FL. You will install, configure, and maintain enterprise VDI environments using VMware Horizon and Citrix, manage pools and images, and ensure secure, efficient desktop delivery.

Collaboration with engineers and leadership is essential for continuous improvement and documentation of baselines. Ideal candidates have 5+ years in systems admin with VDI, strong hypervisor and GPO skills, and a DoD security clearance or

Qualifications

• 5+ years of systems administration and desktop virtualization experience.
• Proven experience with VMware Horizon, Omnissa, or Citrix.
• Strong hypervisor administration and GPOs, storage, and user profiles.
• DoD standards and security clearance are required.

Responsibilities

• Install, configure, administer, and troubleshoot enterprise VDI environments.
• Manage virtual desktop pools, golden images, user profiles, and app publishing.
• Perform routine maintenance, patching, and vulnerability updates.
• Monitor storage, resources, and performance; resolve bottlenecks.
• Collaborate with cross-functional teams and document baseline inventories.
• Improve provisioning and user management processes.
• Maintain configuration management records and technical documentation.

Skills

VDI administration

VMware Horizon

Citrix Virtual Apps and Desktops

Hypervisor (vSphere/ESXi)

Active Directory GPOs

Patch management

Documentation

Cross-functional collaboration

Education

Bachelor’s degree in CS/IT/Systems Eng

Master’s degree

Associate’s degree

High school diploma

Tools

VMware Horizon

Citrix Virtual Apps and Desktops

Omnissa

vSphere/ESXi

ACAS

Job description

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.