Security Engineer, Notion

• Notion is looking for a talented Security Engineer with solid communication and analytical skills to help us improve and optimize our security monitoring program
• We are seeking someone with a mixture of technical ability, attention to detail, and who can function comfortably in a variety of cyber security disciplines
• In addition to technical acumen and enthusiasm, we need a self-motivator to stay on top of emerging threats and vulnerabilities to Notion; providing a continuous proactive monitoring approach
• If you're passionate about data privacy and Security, understand the security monitoring process, and enjoy designing creative approaches to provide effective security monitoring at scale
• 5+ years of experience in security detection, response, or related fields
• Strong ability to write, tune, and optimise detections across various platforms (e.g., EDR, SIEM, network monitoring)
• Proficiency in scripting and automation (Python, Go, or similar) to enhance detection and response capabilities
• Experience with detection rule development (Sigma, YARA, Splunk SPL, KQL) and security event correlation
• Deep expertise in the incident response lifecycle, including investigation, containment, remediation, and recovery
• Lead security incidents and command response efforts, ensuring rapid containment and mitigation—even in unfamiliar environments and across team boundaries
• Lead post-incident learning, conducting blameless postmortems and driving follow-up actions that address systemic issues and prevent recurrence
• Experience securing cloud-native environments (AWS, GCP, or Azure), including detection and response strategies for cloud workloads
• Practical knowledge of detecting malicious activity in application and infrastructure architectures in a SaaS environment
• Ability to assess security gaps and propose detection & response improvements across cloud and endpoint platforms
• Pragmatic and business-oriented: You focus on high-impact security efforts, balancing security investments with real-world risk
• Not ideological about technology: You see technologies and programming languages as tools with tradeoffs—you’re opinionated but adaptable, always willing to learn new technologies
• Empathetic communication: You clearly articulate complex security issues, whether in technical discussions or executive briefings. You engage thoughtfully in disagreements and find common ground when needed
• Team player: You thrive in a team environment, collaborating cross-functionally to accomplish shared security goals. You care about mentorship, learning, and continuous improvement

Desirable

• Notion’s Security team builds and evolves our detection, response, and security automation capabilities to protect our users and data
• We proactively monitor, detect, and investigate threats across Notion’s cloud-native environment, ensuring a resilient security posture. We partner closely with Engineering, Infrastructure, and Security leadership to continuously enhance our ability to respond to emerging threats at scale
• You will design and implement advanced detections, automate security workflows, lead incident investigations, and conduct proactive threat hunts to identify and mitigate risks before they impact Notion
• You will work in a highly collaborative team to evolve security defenses, reduce dwell time, and respond to sophisticated adversaries
• Lead detection engineering efforts, designing scalable, high-fidelity security detections across cloud, endpoint, and application environments
• Develop automation & orchestration solutions to improve response and containment times and enhance security workflows
• Own and drive incident response and command, leading major security incidents, containment, and remediation efforts
• Conduct proactive threat hunting, leveraging threat intelligence and hypothesis-driven methodologies to detect hidden adversary activity
• Reverse-engineer attacks, analyzing adversary behavior and developing robust detection strategies
• Continuously improve security defences, applying lessons learned from incidents, hunting exercises, and emerging threat trends