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.

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