Microsoft 365 Security Admin | Intune & Defender Expert

Quantum Technologies LLC; Atlanta (GA); On-site; USD 82,000 - 117,000; Full time

Job summary

Quantum Technologies LLC is seeking a Microsoft 365 Systems Administrator to secure and optimize our Microsoft 365 environment in Atlanta, GA. This role focuses on security controls, identity access management, and email security across the organization.

You will configure Conditional Access, manage Intune, monitor Defender alerts, and collaborate with internal teams to ensure reliable, compliant services. Relevant Microsoft certifications are preferred.

Qualifications

• Experience administering Microsoft 365 environments.
• Hands-on experience with Intune, Defender, Purview, Conditional Access, Entra ID (Azure AD), Exchange Online and email security.
• Experience managing Windows desktop environments and cloud services.
• Knowledge of identity and access management, endpoint security, and Microsoft security best practices.
• Experience with Mimecast, Azure, or Windows Server administration.
• Experience in public sector or regulated environments with knowledge of NIST or similar frameworks.
• Microsoft certifications such as Microsoft 365 Administrator, Endpoint Administrator, Identity and Access Administrator, Security Operations Analyst or Azure Administrator.

Responsibilities

• Configure and maintain Conditional Access policies, multifactor authentication, and access controls.
• Administer Microsoft Intune for endpoint management, device compliance, application deployment, and updates.
• Monitor and manage Microsoft Defender security alerts and respond to security-related incidents.
• Support Microsoft Purview policies, including data protection, retention, and compliance requirements.
• Manage email security, respond to threats, and remediate vulnerabilities.
• Manage Windows endpoints and assist with Windows Server administration.
• Perform system monitoring, patch management, and vulnerability remediation.
• Maintain technical documentation and support IT projects and initiatives.
• Work with internal teams and vendors to ensure reliable and secure technology services.

Skills

Microsoft 365 Admin

Intune

Defender

Purview

Azure AD/Entra ID

Exchange Online

Email Security

Windows Admin

Compliance/NIST

Tools

Mimecast

Azure

Windows Server

Job description

Quantum Technologies LLC is seeking a Microsoft 365 Systems Administrator to secure and optimize our Microsoft 365 environment in Atlanta, GA. This role focuses on security controls, identity access management, and email security across the organization.

You will configure Conditional Access, manage Intune, monitor Defender alerts, and collaborate with internal teams to ensure reliable, compliant services. Relevant Microsoft certifications are preferred.