Build enterprise detections with Microsoft Sentinel and Splunk as a Senior Information Security Analyst supporting TD in Toronto, Ontario.
This senior role supports cybersecurity monitoring, detection engineering, and security operations improvement. You will maintain detections, analyze alerts, tune signal quality, and improve monitoring maturity. The work spans Microsoft Defender products, Microsoft Entra ID, cloud, identity, endpoint, network, email, and application security.
Key Responsibilities: Develop, review, tune, and maintain security detections
Analyze events, alerts, and telemetry for suspicious activity
Reduce detection noise and improve alert fidelity
Document logic, data sources, tuning decisions, and guidance
Assess detection relevance,



coverage, and operational value
Requirements: Cybersecurity, monitoring, SOC, incident response, or detection engineering experience
Hands-on Microsoft Sentinel experience
Working knowledge of Splunk and SIEM investigations
Understanding of attack techniques, controls, and investigations
Solid analytical, troubleshooting, communication, and documentation skills
Apply detection engineering expertise across Microsoft Sentinel, Splunk, and enterprise security monitoring at TD in Toronto.

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📌 Senior Cybersecurity Detection Engineer (Ontario)
🏢 TD
📍 Ontario