Systems Administrator

Systems Administrator (VDI) — TS/SCIDayton, OH Systems Administrator (VDI) — TS/SCI Location: Dayton, OH Work Model: Fully onsite Clearance: Active TS/SCIBuild, Secure, and Improve Mission-Critical VDIRackner is hiring Systems Administrators to help operate and improve a secure Virtual Desktop Infrastructure and endpoint environment supporting a national-security mission in Dayton, Ohio.You'll work hands-on with production virtual desktops, cloud infrastructure, thin-client endpoints, automation, security hardening, and complex troubleshooting in a classified environment.This is not a traditional desktop-support position. You'll work across the infrastructure behind secure virtual desktop delivery—including cloud-hosted desktops, identity, endpoint management, automation, security controls, and platform reliability.For someone who already has VDI depth, this role offers the opportunity to broaden your technical range across:Multi-cloud VDISecure enterprise infrastructureEndpoint managementAutomation and scriptingCybersecurity complianceClassified systems operationsRackner also supports professional certifications aligned with current and future technical work across cloud, cybersecurity, DevSecOps, infrastructure, and related engineering disciplines.You do not need every technology listed below. We're looking for strong hands-on depth in the platforms you have actually operated.Your ImpactAdminister and troubleshoot enterprise VDI environments using AWS WorkSpaces, Azure Virtual Desktop (AVD), and/or Omnissa HorizonBuild and optimize desktop images, applications, user profiles, host pools, and scaling configurationsConfigure and operate 10ZiG or comparable thin-client and endpoint-management environmentsDiagnose and resolve performance, authentication, profile, connectivity, compatibility, and user-access issuesAutomate recurring administration using PowerShell, Bash, Python, or similar scripting toolsHarden and secure virtual desktops, Active Directory, endpoints, and cloud resources using DISA STIGs and applicable security controlsDeploy and maintain endpoint configurations, firmware, certificates, security patches, and device settingsPartner with security and infrastructure teams on continuous monitoring, authorization activities, configuration validation, and technical evidence collectionTest and improve VDI performance, reliability, compatibility, and usabilityDocument system configurations, operating procedures, troubleshooting guidance, technical decisions, and architectureWhere You May FitWe're building complementary technical coverage across the team.Strong alignment may include:10ZiG + AWS WorkSpaces 10ZiG + Azure Virtual Desktop AWS WorkSpaces + Horizon Azure Virtual Desktop + HorizonDepth in one of these areas matters more than checking every box.Candidates without direct 10ZiG knowledge may still be relevant if they bring strong thin-client, endpoint-management, or enterprise VDI administration depth.What You Bring RequiredActive TS/SCI clearanceAbility to work fully onsite in Dayton, OhioHands-on production administration of at least one primary VDI platform:AWS WorkSpacesAzure Virtual DesktopOmnissa / VMware HorizonDemonstrated ability to configure, troubleshoot, maintain, or improve enterprise virtual desktop infrastructureWorking knowledge of Windows infrastructure, identity and access, endpoint management, or related enterprise systemsAbility to use scripting or automation to improve administration and reduce repetitive workFamiliarity with security hardening and compliance requirements in regulated, government, or classified environmentsAbility to produce clear technical documentation, operating procedures, and configuration guidanceCompTIA Security+ or another certification accepted for the program's required DoD 8140 baselineStrong Additional AlignmentYou may stand out if you have worked with:10ZiG Manager or comparable thin-client management platformsActive Directory and Group PolicyVirtual desktop image managementUser profile managementCloud-based desktop provisioningHost pools and scalingCertificate managementEndpoint enrollment and lifecycle managementDISA STIG implementationContinuous monitoringATO or related authorization documentationSecure or classified infrastructureLarge-scale enterprise desktop environmentsThese are valuable signals, but not every item is required for every position.Preferred CertificationsRelevant credentials may include:Microsoft certifications aligned with Azure Virtual DesktopAWS Certified Solutions ArchitectAWS Certified SysOps AdministratorVMware / Omnissa Horizon or desktop virtualization certificationsCertifications can strengthen your background, but they are not a substitute for hands-on production administration.About RacknerRackner builds mission-critical software and infrastructure for the U.S. government.Our teams work across cloud platforms, DevSecOps, cybersecurity, AI/ML, distributed systems, and modern software engineering supporting federal and national-security missions.Rackner engineers and technical teams work closely with infrastructure, security, program, and mission stakeholders to build, operate, and improve systems supporting complex operational environments.Benefits & PerksAt Rackner, we invest in the growth and long-term development of our people.Company-supported professional certificationsCareer development across Rackner's government technology programs401(k) with 100% match up to 6%Medical, dental, vision, life, and disability coverageGenerous PTO and paid holidaysFitness and wellness reimbursementWeekly payTeam events and additional employee perksEqual OpportunityRackner is an equal opportunity employer and considers all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, or other protected characteristics.