The Citrix VDI Engineer (Sr. Systems Administrator) provides senior‑level system administration, integration, and sustainment support for mission‑critical applications and systems supporting United States Space Command. This role performs installation, upgrades, daily operations, backups, troubleshooting, and lifecycle maintenance across virtualized environments, physical servers, storage systems, and specialized mission applications. Work is performed with minimal supervision. This role requires advanced technical expertise, strong communication skills, a high adherence to quality & standards, and the ability to support geographically dispersed customers and engineering teams. The VDI Engineer will be responsible for:
- Supporting VDI system administration for United States Space Command
- Assisting engineering teams during software integration, testing, PITCO, SOVT, and installation events
- Providing troubleshooting and technical support for hardware/software discrepancies identified during installation or after
- Supporting secure system configurations, cybersecurity compliance, and RMF‑aligned hardening activities
- Assisting with activities for United States Space Command’s transition to Red Stone Arsenal
- Participating in technical & project planning meetings with NIWC Pacific, United States Space Command, OEMs, and contracting partners
- Providing on-call or surge support during mission-critical events, exercises, or transition windows as required
- Supporting facility transitions, stand-ups, and relocations, including VDI cutovers, migrations, and capacity planning for new or expanded mission locations
- Developing and maintaining technical documentation, including architecture diagrams, SOPs, operational runbooks, and recovery procedures
#LI-KM1
Requirements- Experience: 10+ years of systems administration experience in a Department of Defense (DoD) Windows enterprise environment.
- VDI: Hands-on administration of Citrix CVAD (Virtual Apps & Desktops) deployments, alongside general enterprise virtualization (e.g., VMware ESXi, Dell VxRail, Nutanix HCI) and VDI ecosystems.
- Systems Administration: Advanced management of Microsoft Group Policy Objects (GPOs), software/patch management (WSUS, MECM, SCCM), SQL Server (Always On availability groups), and profile management technologies.
- Security & Compliance: Deploying DISA STIGs, hardening Windows 10/11 endpoints, and managing Public Key Infrastructure (PKI) certificates.
- Hardware & Facilities: Assisting with desktop deployment activities as needed (installing clients & peripherals/KVMs). The physical ability to get into confined spaces when needed. Able to assist with server and cabling installs in a datacenter type environment & handle and lift up to 50 lbs. of hardware.
- Advanced Networking & Traffic Management: Strong understanding of OSI model, routing/switching, packet analysis (Wireshark, tcpdump), and experience configuring mainstream load balancers (F5, NetScaler) and Global Server Load Balancing (GSLB).
- Technical Engineering & Design: Ability to research and translate vendor white papers and industry best practices into actionable system configurations, paired with strong technical communication skills.
- Certifications: Active DoD 8570 IAT Level II (e.g., Security+ CE, CCNA Security) and a professional-level VDI administration certification.
- Education & DoD Environment Context: Bachelor's degree in a related discipline (or equivalent experience) and experience supporting high-tempo operational DoD environments (e.g., COCOMs, Joint Operations Centers, or Service Branch enterprise networks).
- Cloud & Modern SaaS: Experience administering Amazon Web Services (AWS) environments and fielding Microsoft 365 solutions.
- Specialized DoD Security & Identity Systems: Experience managing DoD Host Based Security System (HBSS), configuring Axway Tumbleweed/OCSP solutions, and managing Cross-Domain Solutions like Everfox (Forcepoint/Raytheon) Trusted Thin Client.
- Core Infrastructure & Automation: Proficiency in PowerShell automation, managing advanced DNS/DHCP configurations (Infoblox or Windows Failover Cluster), and managing Service Principal Names (SPNs).
SRC IS A CONTRACTOR FOR THE U.S. GOVERNMENT, THIS POSITION WILL REQUIRE U.S. CITIZENSHIP AS WELL AS, A U.S. GOVERNMENT SECURITY CLEARANCE AT THE TOP SECRET LEVEL WITH TOP SECRET / SCI ELIGIBILITY
Travel RequirementsSome travel required as needed.
Scientific Research Corporation is an advanced information technology and engineering company that provides innovative products and services to government and private industry, as well as independent institutions. At the core of our capabilities is a seasoned team of highly skilled engineers and scientists with multidisciplinary backgrounds. This team is challenged daily to provide cutting edge technology solutions to our clients.
SRC offers a generous benefit package, including medical, dental, and vision plans, 401(k) with a company match, life insurance, vacation and sick paid time off accruals with amounts increasing based on role and years of service, 11 paid holidays, tuition reimbursement, and a work environment that encourages excellence and more. For positions requiring a security clearance, selected applicants will be subject to a government security investigation and must meet eligibility requirements for access to classified information.
EEOScientific Research Corporation is an equal opportunity employer that does not discriminate in employment.
All qualified applicants will receive consideration for employment without regard to their race, color, religion, sex, age, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other protected characteristic under federal, state or local law.
Scientific Research Corporation endeavors to make www.scires.com accessible to any and all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process, please contact [email protected] for assistance. This contact information is for accommodation requests only and cannot be used to inquire about the status of applications.
Skills Required
- 10+ years of systems administration experience in a DoD Windows enterprise environment
- Hands-on administration of Citrix CVAD Virtual Apps and Desktops
- Experience with VMware ESXi, Dell VxRail, Nutanix HCI, and enterprise virtualization or VDI ecosystems
- Advanced Microsoft Group Policy Objects management
- Software and patch management experience with WSUS, MECM, or SCCM
- Microsoft SQL Server experience, including Always On availability groups
- Experience with profile management technologies
- Experience deploying DISA STIGs and hardening Windows 10/11 endpoints
- Experience managing PKI certificates
- Ability to assist with desktop, server, cabling, and datacenter installations; lift up to 50 pounds and work in confined spaces
- Strong understanding of the OSI model, routing, switching, and packet analysis using Wireshark or tcpdump
- Experience configuring F5 or NetScaler load balancers and GSLB
- Ability to translate vendor white papers and industry best practices into system configurations
- Active DoD 8570 IAT Level II certification, such as Security+ CE or CCNA Security
- Professional-level VDI administration certification
- Bachelor's degree in a related discipline or equivalent experience
- Experience supporting high-tempo DoD environments such as COCOMs, Joint Operations Centers, or Service Branch enterprise networks
- AWS administration experience
- Microsoft 365 administration experience
- Experience managing HBSS, Axway Tumbleweed, OCSP solutions, or cross-domain solutions such as Everfox Trusted Thin Client
- PowerShell automation proficiency
- Advanced DNS and DHCP administration, including Infoblox or Windows Failover Cluster
- Service Principal Name management experience
- U.S. citizenship
- Top Secret security clearance with Top Secret/SCI eligibility
What We Do
Sciolex Corporation is a CVE-certified Service-Disabled Veteran-Owned Small Business that provides systems and mission engineering, technical assistance, operations advisory, cloud computing, acquisition support, and executive and administrative services. The company supports federal civil, defense, and Intelligence Community agencies, helping them plan, integrate, test, deploy, and manage information, technology, and mission capabilities while improving information operations through research and innovative processes.







