System Administrator

SAIC; Colorado Springs (CO); On-site; USD 60,000 - 100,000; Full time

Job summary

SAIC in Colorado Springs, CO seeks a System Administrator to manage DoD‑based IT infrastructure, focusing on Windows Server (AD, GPO), enterprise virtualization (Nutanix/VMware/Proxmox), and security controls. You will ensure compliance with STIGs/RMF, monitor performance, and lead patching and backup activities.

Strong documentation and cross‑team collaboration are essential. The role requires DoD experience, Security+ or higher, and TS/SCI clearance, with on‑site work in a regulated,

Qualifications

• 8+ years of hands-on system administration or 5+ years with a Bachelor's in CS/ IT
• DoD or regulated environment experience
• VMware or other enterprise virtualization experience
• Windows Server administration with Active Directory & Group Policy
• Knowledge of DoD compliance frameworks, STIGs, RMF
• Security+ (DoD 8570/8140 compliant) and TS/SCI clearance

Responsibilities

• Install, configure, and maintain Windows Server environments (AD, GPO, permissions)
• Manage on-premises Type 1 hypervisors (Nutanix, VMware, Proxmox) for high availability
• Implement DoD security controls and STIG/RMF requirements
• Monitor network performance and troubleshoot connectivity issues
• Manage system patching and updates to reduce vulnerabilities
• Administer and maintain backup/recovery technologies and validate restores
• Document system configurations, procedures, and security policies
• Collaborate with cross-functional teams to improve security posture
• Stay current on DoD compliance requirements and emerging tech

Skills

System administration

Windows Server administration

Active Directory

Group Policy

Network fundamentals

DoD compliance

Backup and recovery

Documentation

Cross-functional collaboration

Education

Bachelor's degree in Computer Science or related field

Master's degree

High school diploma or GED

Tools

Nutanix

VMware

Proxmox

Job description

Description

SAIC is seeking a skilled and motivated System Administrator in Colorado Springs, CO to join our team and 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.

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.

Responsibilities:

• 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.
• Partner with cross-functional teams to evaluate, implement, and enhance system functionality and security posture.
• Stay current on emerging technologies, industry best practices, and evolving DoD compliance requirements.

Qualifications

Required Qualifications:

• High school diploma/GED with 8+ years of equivalent hands‑on experience in a system administration role OR Bachelor’s degree in Computer Science, Information Technology, or a related field with 5 years of relevant experience; Master and three years of more experience.
• Demonstrated experience as a System Administrator in a DoD or similarly regulated, security‑conscious environment.
• 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.
• Proficient in Windows Server administration, patching, and update management.
• Experience with on‑premises Type 1 hypervisors (Nutanix, VMware, Proxmox preferred).
• Familiarity with enterprise collaboration and project management tools.
• Understanding of DoD compliance frameworks, STIGs, and security hardening standards.
• Experience with enterprise backup/recovery platforms and documented DR procedures.

Required Certifications:

• CompTIA Security+ (DoD 8570/8140 compliant).
• Active TS/SCI clearance.

Preferred Certifications (not required):

• Microsoft Certified: Azure Administrator Associate.
• Nutanix Certified Professional or VMware Certified Professional (VCP).
• Cisco Certified Network Associate (CCNA).
• CompTIA Security X (Formerly CASP +).

Target salary range: $60,001 - $100,000. The estimate displayed represents the typical salary range for this position based on experience and other factors.