Job 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. 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. • 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. Required Qualifications: • 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).

Requirements

Must-haves

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.
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.

Nice-to-haves

Experience with on-premises Type 1 hypervisors (Nutanix, VMware, Proxmox preferred).

Application prep

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Platform: oracle-cloud
Effort: medium