Fullscript is seeking a Staff Security Engineer to define and drive defensive threat detection, incident response, and AI-assisted SecOps across cloud, identity, endpoints, and apps. You will architect modern detection systems, leverage AI/ML for automation, and scale defenses for a quick-growing, AI-first infrastructure. The ideal candidate has led enterprise-scale detection engineering and incident response end-to-end, and excels at turning threat telemetry into precise detections and automated