Senior Windows Detection Engineer at SentinelOne

Job description

Our Purpose At SentinelOne, we are driven by a clear purpose: to give the advantage to those who secure our future. As AI reshapes how organizations build, operate, and innovate, the responsibility to protect them becomes more critical than ever. When you join SentinelOne, your work helps protect global enterprises, critical infrastructure, and the technologies shaping tomorrow. If you are motivated by meaningful challenges and want your impact to be real, measurable, and global, you will find purpose here. About Us SentinelOne is a company at the intersection of AI and security, pioneering a new operating model for cybersecurity. Our AI-native platform unifies protection across endpoint, cloud, identity, data, and AI systems to deliver autonomous detection and response with clarity and speed. By combining real-time analytics, intelligent automation, and a unified data foundation, we reduce noise, simplify complexity, and empower security teams to focus on what truly matters. Our teams are builders, problem-solvers, and innovators committed to shaping the future of security. If you are excited to solve hard problems alongside talented, mission-driven people, we invite you to help us build a safer future for humanity. What Are We Looking For? We’re looking for people who are relentlessly curious and committed to continuous learning. AI is reshaping every function across our business, and we enable every team member, regardless of role or level, to build fluency in AI tools and concepts. Those who thrive here actively seek out new solutions, experiment thoughtfully, and apply what they learn to drive better, faster, smarter outcomes. As a Senior Windows Detection Engineer, you will be tasked with setting the technical direction for how SentinelOne detects threats on the Windows agent. You will own the detection content that ships by default on the SentinelOne Windows agent, writing behavioral rules that correlate process, file, registry, network, and other OS events into high-fidelity detections. As a senior engineer, you will also shape detection strategy, mentor other engineers, and influence how our detection capabilities evolve. What Will You Do? Primary responsibilities include: Research attacker tradecraft including intrusion sets, malware families, red team tooling, and emerging Windows TTPs, and translate findings into precise, resilient behavioral detections mapped to MITRE ATT&CK. Design multi-event correlation logic that catches technique-level behavior rather than brittle indicators, with attention to evasion and bypass resistance. Own the full rule lifecycle: hypothesis, authoring, validation, false-positive analysis, promotion to default, and ongoing tuning in production. Analyze telemetry and alert data at scale to measure rule noise and efficacy, and drive improvements to precision and coverage. Define and prioritize the detection backlog based on threat intelligence, customer impact, and coverage gaps across the ATT&CK matrix. Review peers' rules for logic, performance, and metadata quality, and set the standards for detection engineering practices across the team. Write clear rule descriptions, metadata, and test cases so every detection is explainable, maintainable, and verifiable. Partner with threat research, agent and platform teams, and the MDR/SOC to feed real-world findings back into detection content and to propose improvements to rule capabilities and telemetry. Mentor engineers on attacker tradecraft, detection design, and false-positive analysis. What Skills and Knowledge Will You Bring? Ideal candidates will have: Significant experience in Detection Engineering, Threat Research, Red Teaming, or Offensive Research, including leading detection work at a senior or Staff level. Deep, hands-on experience writing behavioral detection rules for EDR, XDR, SIEM, or similar platforms. Hands-on experience in malware analysis (static and dynamic), with the ability to analyze malicious behavior, understand attac