Senior Security Graph Engineer

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. In this role, you will be responsible for designing, building, and analyzing large-scale threat graphs that model adversary behavior, infrastructure, and relationships across the cyber threat landscape. You will collaborate closely with researchers, analysts, and detection engineers at the intersection of graph theory, threat protection, and machine learning, helping to uncover hidden patterns, identify emerging threats, and drive proactive defense strategies to drive research on emerging cloud threats that impact both Microsoft and third-party products. 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.