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). Configure, administer, and sustain an enterprise Citrix environment supporting geographically distributed users. 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). 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). If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting: June 23, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. 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. Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit Pay and Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here. Securing Your Data Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to View email address on click.appcast.io. Commitment and Diversity All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.