System Administrator – Cloud & DoD Security (TS)

Quantum Research International Inc; Huntsville (AL); On-site; USD 90,000 - 130,000; Full time

Job summary

Quantum Research International, Inc. seeks an experienced Systems Administrator to design and implement architectures across on-prem, cloud, and hybrid environments supporting Army systems. The role requires DoD security posture, Windows/Linux administration, and infrastructure leadership in Huntsville, AL.

You will guide a team of engineers, ensure DoW/STIG alignment, and contribute to ATO readiness while maintaining high availability and secure operations in a demanding defense setting.

Qualifications

• 5 years of experience in systems and/or networking environments.
• Hands-on experience with Windows Server (2016-2025) and Linux in production.
• Experience with AD DS/DNS, MFA/ADFS/SSO/PKI, STIGs, backups, and recovery.

Responsibilities

• Lead design of systems across on-prem, cloud, and hybrid environments.
• Provide technical guidance to network and system engineers and infrastructure technicians.
• Support Authority to Operate (ATO) efforts on government networks.
• Maintain high availability, disaster recovery, and security posture.

Skills

Active Top Secret Clearance

Active Directory Domain Services (ADDS

Education

BS in computer science/engineering information systems or equivalent

Tools

VMware vCenter/ESXi

Job description

Quantum Research International, Inc. seeks an experienced Systems Administrator to design and implement architectures across on-prem, cloud, and hybrid environments supporting Army systems. The role requires DoD security posture, Windows/Linux administration, and infrastructure leadership in Huntsville, AL.

You will guide a team of engineers, ensure DoW/STIG alignment, and contribute to ATO readiness while maintaining high availability and secure operations in a demanding defense setting.