Citrix Infrastructure Administrator

Leidos is committed to delivering innovative solutions and supporting mission-critical operations for our customers. The DISA CESO ITSS team provides network operations and cyber defense support to the Defense Information Systems Agency (DISA), enabling secure and reliable communications for the Department of Defense (DoD) and Combatant Commands (COCOMs).

This role is responsible for day-to-day health, maintenance, troubleshooting, performance, and security integration for Citrix Virtual Apps and Desktops (CVAD) and Citrix ADC (NetScaler).

This position is 100% on-site in Arlington, VA.

Key responsibilities

• Configure and maintain CVAD and Citrix ADC (NetScaler), including associated access components (e.g., StoreFront, Citrix Gateway) as required.
• Troubleshoot and resolve user connectivity, latency, and performance issues across geographic locations.
• Perform routine patching, system health checks, upgrades, and firmware updates for Citrix infrastructure, hypervisors, and supporting platforms.
• Manage security and access, including Active Directory integration, user/group access controls, and compliance requirements.
• Automate provisioning and administrative tasks using PowerShell (or similar scripting).
• Document configurations and operational procedures; support incident/change workflows.

Required qualifications

• BA degree and 4+ years experience with enterprise virtualization architectures and Citrix technologies (e.g., XenApp, XenDesktop, StoreFront, Citrix Gateway/CVAD). Additional years of experience may be accepted in lieu of degree.
• Hands-on experience administering and troubleshooting Citrix ADC (NetScaler).
• Strong networking fundamentals: TCP/IP, DNS, DHCP, load balancing, SSL/TLS certificates.
• Candidate must possess an active DOD Top Secret level security clearance, and be eligible to obtain and maintain a TS/SCI
• Candidate must be willing to take and maintain a CI/Poly
• 8570 IAT Level II Baseline Certification (e.g. CySA+, GICSP, GSEC, Security+ CE)

Preferred qualifications

• Citrix certifications such as Citrix Certified Associate – Virtualization (CCA-V) or Citrix Certified Professional – Virtualization (CCP-V).

#ceso

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Original Posting:

October 20, 2026

Pay Range:

Pay Range $73,450.00 - $132,775.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.