Role: Microsoft Defender Security Engineer

Location: Calgary, AB – Onsite

Required Technical Skills

Microsoft Defender for Endpoint (MDE)

Microsoft Defender for Identity (MDI)

Microsoft Defender for Cloud Apps (MDCA)

CrowdStrike Falcon

Proofpoint Email Security

Security Incident Investigation and Response

Threat Hunting and Threat Intelligence

Endpoint Detection & Response (EDR)

SIEM/SOAR integration knowledge (Microsoft Sentinel preferred)

Windows Server and Active Directory Security

Email Security and Anti-Phishing Controls

Security Monitoring and Alert Triage

Key Responsibilities

Administer and support Microsoft Defender Suite (MDE, MDI, MDCA).

Manage CrowdStrike Falcon platform including policy tuning, threat detection, and endpoint protection.

Monitor and administer Proofpoint email security solutions to protect against phishing, malware, and business email compromise attacks.





Investigate security alerts and incidents, perform root cause analysis, and provide remediation recommendations.

Conduct proactive threat hunting across endpoints, identities, cloud applications, and email environments.

Fine-tune detection rules and security policies to reduce false positives and improve security visibility.

Integrate security tools with SIEM platforms such as Microsoft Sentinel.

Develop and maintain security monitoring dashboards, reports, and operational documentation.

Collaborate with infrastructure, application, and SOC teams during incident response and remediation activities.

Support vulnerability management and security compliance initiatives.

📌 Microsoft Defender Security Engineer (Calgary)
🏢 apptoza
📍 Calgary