Senior Security Researcher

The Defender Experts (DEX) Research team is at the forefront of Microsoft’s threat protection strategy, combining world-class hunting expertise with AI-driven analytics to protect customers from advanced cyberattacks. Our mission is to move protection left—disrupting threats early, before damage occurs—by transforming raw signals into intelligence that powers detection, disruption, and customer trust. We’re looking for a passionate and curious Senior Threat Researcher to join this high-impact team. In this role, you will collaborate closely with researchers, analysts, and detection engineers to advance managed Sentinel expertise and drive research on emerging cloud threats that impact both Microsoft and third-party products. Leveraging a deep understanding of multi-cloud environments and diverse security architectures, you will develop strategies and models that enhance threat detection and response capabilities within Microsoft Sentinel. Your research will directly contribute to the development of real-time protections for enterprises worldwide, ensuring comprehensive coverage across cloud platforms and strengthening the security posture of organizations leveraging a heterogeneous mix of technologies. This is a unique opportunity to work at scale, tackle complex cloud security challenges, and shape the evolution of threat research within Microsoft Security.