Virtualization Systems Administrator - TS/SCI w/Poly

VIRTUALIZATION SYSTEMS ADMINISTRATOR

YOUR IMPACT

Own your opportunity to support national defense. Your work will help keep critical operations secure and connected across the global enterprise directly, contributing to a mission that protects our nation every day.

CIS is growing, and we invite both our experienced incumbents and new team members to be part of what’s next. Incumbents bring invaluable mission insight, while new talent adds fresh ideas and energy. Together, we’ll strengthen continuity and drive the next generation of innovation.

MEANINGFUL WORK AND PERSONAL IMPACT

As a Virtualization Systems Administrator supporting CIS, you will ensure the stability, security, and high availability of enterprise virtual server platforms across multiple networks and environments. You will manage and optimize virtualized compute resources, maintain compliant configuration baselines, and deliver resilient hosting solutions that power mission critical applications. Your work directly impacts system readiness, security posture, and the reliable delivery of core IT services. 

KEY RESPONSIBILITIES:

• Administer, maintain, and optimize virtualized server environments, including hypervisors, virtual machines, and supporting infrastructure across Windows and Linux platforms 
• Monitor health, performance, and utilization of virtual compute resources, proactively identifying opportunities to enhance capacity, resilience, and efficiency 
• Implement secure configuration baselines, system hardening, and STIG aligned controls across all managed virtual servers and supporting components 
• Execute timely patching and security updates for virtual hosts, guest operating systems, hypervisors, and associated tools using automated deployment and compliance technologies 
• Review weekly compliance and security scan results, identify noncompliant systems, determine root causes, and coordinate remediation actions with system owners 
• Track and apply approved security directives, task orders, and vulnerability notices, ensuring alignment with enterprise cybersecurity requirements and reporting timelines 
• Design, build, and maintain virtual machine templates, golden images, firmware versions, and standardized configuration profiles to ensure consistent and secure deployments 
• Provide Tier 3 troubleshooting and escalation support for complex virtualization issues including storage, networking, cluster health, and resource contention 
• Collaborate with engineering, cybersecurity, networking, and operations teams to implement new virtual infrastructure solutions, support accreditation activities, and validate secure configurations 
• Maintain documentation of system configurations, patch schedules, template updates, and procedures to support audit readiness and change control 

WHAT YOU’LL NEED TO SUCCEED:

• EDUCATION: Bachelor’s degree in an IT-related field, or 8-12+ years of relevant IT experience in lieu of a degree
• CERTIFICATION: Meet DoD 8140 Information Assurance Workforce certification requirements (e.g. Security+ CE, etc.)
• CLEARANCE: Active TS/SCI clearance with a favorable polygraph
• Hands on experience administering VMware, Hyper-V, or comparable virtualization platforms in an enterprise environment 
• Working knowledge of Windows and Linux server administration, performance tuning, and secure configuration practices 
• Experience performing patch management, vulnerability remediation, system hardening, and compliance reporting across virtualized systems 
• Strong analytical, documentation, and cross-team communication skills 

• US citizenship required

• LOCATION: Onsite

GDIT IS YOUR PLACE
At GDIT, the mission is our purpose, and our people are at the center of everything we do.
Growth: AI-powered career tool that identifies career steps and learning opportunities
Support: An internal mobility team focused on helping you achieve your career goals
Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off
Community: Award-winning culture of innovation and a military-friendly workplace

OWN YOUR OPPORTUNITY
Explore an enterprise IT career at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your desire to drive operations forward.

#CIS