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 maintainCVADandCitrix ADC (NetScaler), including associated access components (e.g.,StoreFront,Citrix Gateway) as required.
Troubleshoot and resolveuser connectivity, latency, and performance issuesacross geographic locations.
Perform routinepatching, system health checks, upgrades, andfirmware updatesfor Citrix infrastructure, hypervisors, and supporting platforms.
Managesecurity and access, includingActive Directory integration, user/group access controls, and compliance requirements.
Automate provisioning and administrative tasks usingPowerShell(or similar scripting).
Document configurations and operational procedures; support incident/change workflows.
Required qualifications
BA degree and 4+ yearsexperience 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 troubleshootingCitrix 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
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 onlyand 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.