Design advanced KQL detections for Microsoft Sentinel and Defender XDR within PSP Investments’ hybrid mode, supporting global cyber defense operations. Work from Montreal four days weekly, collaborating with hunters, responders, platform teams, and a managed security provider.As Senior Developer, Threat Defense and Detection Engineering, you will turn intelligence and testing recommendations into production use cases. You will engineer detections, preventive controls, telemetry coverage, and automations across Microsoft Sentinel, Defender XDR, Crowd Strike Falcon, and Azure Dev Ops. The position requires strong cybersecurity engineering and operational judgment.Key Responsibilities: Write scalable KQL detections for Sentinel and Defender XDRImplement controls, rules, and signatures in security toolsTest, document,



and release detection code through Azure Dev OpsSupport production detections, connectors, playbooks, and incident responseMeasure ATT&CK coverage, false positives, and catalogue performanceRequirements: Five years of hands-on cybersecurity experienceAdvanced KQL and Microsoft Sentinel enterprise experiencePython, Power Shell, Git, code review, and CI/CD practiceExperience with SIEM, EDR/XDR, IDS, and Crowd Strike FalconBachelor’s degree or equivalent experience; English and French bilingualismApply detection engineering, KQL, and security automation expertise to strengthen PSP Investments’ global threat defense capabilities.#J-18808-Ljbffr

📌 Senior Detection Engineer Microsoft Sentinel (Montreal)
🏢 PSP’s Private Debt & Credit Investment
📍 Montreal