System Administrator (VDI) Engineer

Responsibilities

• Manage and maintain 10ZiG thin-client environments hosted in AWS, including device configurations, firmware updates, security patches, certificates, andendpoint enrollment
• Configure and support VDI environments, including Azure Virtual Desktop (AVD), AWS Workspaces, and Horizon
• Build and maintain virtual desktop images, user profiles, applications, host pools, and scaling configurations
• Test VDI performance and compatibility, gather user feedback, and make improvements to desktop environments
• Work with Information System Security Officers (ISSOs) to support security compliance and continuous monitoring requirements
• Apply and maintain DISA STIGs across virtual desktops, Active Directory, thin clients, and cloud resources
• Support ATO and CTO activities by preparing technical documentation, testing configurations, and gathering required evidence
• Develop and maintain technical documentation, including CONOPS, SOPs, and system architecture documentation
• Qualifications/Experience Preferred
• VDI Administration: experience administering at least one of the primary VDIplatforms (AVD, AWS WorkSpaces, Horizon)
• Endpoint Management: Experience configuring and operating 10ZiG Manager or equivalent thin-client deployment consoles
• Scripting & Automation: Proficiency with scripting languages (PowerShell,Bash, or Python) to automate template deployment, cloud resource scheduling, and user profile management
• Infrastructure Security: Documented experience executing STIG checklists and supporting CTO/ATO documentation packages in highly regulated enterprise environments
• Writing Capabilities: Strong technical communication skills, with experience drafting standard operating procedures (SOPs), technical design blueprints, and system whitepapers
• CompTIA Security+ (DoD 8570 / 8140 IAT Level II baseline) OR a globally recognized equivalent certification is MANDATORY
• Preferred Certifications:
• Microsoft Certified: Azure Virtual Desktop Specialty
• AWS Certified Solutions Architect or SysOps Administrator
• VMware Certified Professional - Desktop and Mobility (VCP-DTM) or Omnissa Horizon credentials
• About Rackner Rackner is a software consultancy focused on building mission-critical systems for the U.S. government. Our teams work across cloud platforms, DevSecOps, AI/ML, distributed systems, and modern software engineering initiatives supporting federal agencies and national security missions. Rackner engineers and technical teams collaborate closely with leadership, program teams, and mission stakeholders to design, demonstrate, and improve software systems that address complex operational challenges.
• Benefits & Perks At Rackner, we believe that when our people grow, our company grows with them, and we are committed to supporting their growth, development and success. We are proud to offer a creative and forward-thinking environment that includes:
• Company-supported certifications aligned to current and future program work, including cloud, Kubernetes, DevSecOps, security, AI/ML, project management, and related technical areas
• Clear advancement tracks and future leadership opportunities
• 401(k) with 100% match up to 6%
• Comprehensive medical, dental, vision, life, and disability coverage
• Generous PTO and paid holidays
• Home-office equipment plan and remote work support
• Fitness and wellness reimbursement
• Weekly pay schedule and modern perks, including team events
• Equal Opportunity Rackner 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.