
Microsoft 365 (O365) Security Architect (NCS/Job/ 3476)
Job Skills
Job Description
· Act as Security Architect / SME for Microsoft 365, covering Exchange Online, SharePoint Online, OneDrive, Teams, and Office apps.
· Design and enforce end‑to‑end O365 security architecture aligned with Zero Trust and least‑privilege principles.
· Establish security standards, patterns, and governance across the M365 platform.
Identity & Access Security (Entra ID)
· Design and implement Conditional Access policies for secure access to O365 workloads.
· Enable phishing‑resistant MFA and Continuous Access Evaluation (CAE) for internal and external users.
· Design Entra ID controls to restrict privileged access and sensitive data to managed and compliant devices.
· Govern Entra Application Registrations, permissions, and access lifecycle.
Threat Protection & Monitoring
· Implement and optimize:
o Microsoft Defender for Office 365
o Defender for Identity (as applicable)
o Defender for Cloud Apps (CASB)
· Protect against phishing, malware, ransomware, and identity-based attacks.
· Identify and close security gaps across email, collaboration, and cloud app usage.
Data Protection & Information Security
· Design and implement Data Loss Prevention (DLP) policies across Exchange, SharePoint, OneDrive, and Teams.
· Apply Information Protection (sensitivity labels, encryption, retention).
· Ensure secure sharing and collaboration for internal and external users.
Endpoint, App & Browser Security Integration
· Integrate Intune app protection and device compliance with O365 access.
· Roll out secure browser and app protection for Office 365 users.
· Ensure access to O365 data is based on user, device, app, and risk posture.
Virtual & Cloud Workspace Security
· Close security control gaps for:
o App Virtualization
o Virtual Desktop / AVD / VDI environments
· Evaluate Windows 365 (W365) fitment and apply O365 security controls accordingly.
Governance & Best Practices
· Drive adoption of overall Entra ID and O365 security best practices.
· Conduct security posture reviews and continuous improvement initiatives.
· Work closely with identity, endpoint, SOC, and compliance teams.