> Markdown version of [/jobs/ext/4600935-system-administrator-virtualization](https://www.wearedevelopers.com/jobs/ext/4600935-system-administrator-virtualization). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# System Administrator - Virtualization

- **Company:** Science Applications International Corporation
- **Location:** Colorado Springs, CO, United States (Remote available)
- **Experience:** Expert
- **Salary:** $80,001.0 - $120,000.0
- **Contract:** Permanent contract
- **Skills:** Proxmox, Active Directory, CompTIA Security+, Information Systems, System Configuration, Windows Servers, Network Monitoring, Network Protocols, Runbook, Server Administration, Virtualization Technology, System Availability, Information Technology, Nutanix, Vmware
- **Published:** November 6, 2026
- **Apply:** https://www.careerbuilder.com/job-details/system-administrator-virtualization-colorado-springs-co--6b1ec616-3cba-4be9-bbfb-876a7f94b94f

## About the Role

Systems Administration/Management, Virtualization, Systems Administration/Management, Virtualization, Information Technology & Information Systems, Sensitive Compartmented Information (SCI), Top Secret Clearance, Work From Home, United States Department of Defense (DoD), Microsoft Windows Server, The ideal candidate brings hands-on experience with enterprise virtualization platforms (Nutanix, VMware, and/or Proxmox), Windows Server administration, and a working knowledge of DoD security compliance standards. You are someone who takes ownership, communicates clearly across teams, and thrives in a regulated, security-first environment., * Bachelor's degree in Computer Science, Information Technology, or a related field with 5 years of relevant experience; or High school diploma/GED with 8+ years of equivalent hands-on experience in a system administration role.

 * Active TS/SCI clearance required.
 * Open to working day shift (with potential for after-hours support) on site at government facility with occasional local travel between sites.
 * Demonstrated experience as a System Administrator in a DoD or similarly regulated, security-conscious environment.
 * Active CompTIA Security+ certification required.
 * Solid hands-on experience with VMware and/or other enterprise virtualization technologies.
 * Strong proficiency in Windows Server administration, including Active Directory and Group Policy.
 * Working knowledge of networking protocols, system security best practices, and IT infrastructure management.
 * Experience working in environments that require frequent interaction with government customers and cross-functional IT/security teams.
 * Proven experience creating and maintaining technical documentation, including SOPs, diagrams, and configuration baselines.
 * Proficient in Windows Server administration, patching, and update management.
 * Experience with on-premises Type 1 hypervisors (Nutanix, VMware, Proxmox preferred).

## Description

SAIC is seeking a skilled and motivated System Administrator to join our team onsite in Colorado Springs and will play a key role in managing and advancing our IT infrastructure within a Department of Defense (DoD) environment. In this role, you will be responsible for maintaining robust, secure, and high-performing systems that support mission-critical operations., * Install, configure, and maintain Windows Server environments, including Active Directory, Group Policy, and user permissions management.

 * Manage and optimize on-premises Type 1 hypervisor platforms (Nutanix, VMware, Proxmox) to ensure high availability and performance.
 * Implement and maintain system security controls in accordance with DoD standards and applicable STIGs/RMF requirements.
 * Monitor network performance, diagnose connectivity issues, and recommend improvements to infrastructure reliability.
 * Manage system patching and update cycles to maintain compliance, reduce vulnerabilities, and minimize operational downtime.
 * Administer and maintain backup and recovery technologies; conduct periodic validation of restore procedures.
 * Create and maintain thorough documentation of system configurations, procedures, and security policies.
 * Build and maintain runbooks, standard operating procedures (SOPs), diagrams, and system configuration baselines.
 * Partner with cross-functional IT and security teams to evaluate, implement, and enhance system functionality and security posture.
 * Interact effectively with government customers, project managers, and other stakeholders to understand requirements, communicate status, and resolve issues.
 * Stay current on emerging technologies, industry best practices, and evolving DoD compliance requirements.