Cloud Incident Response Security Engineer

Cloud incident response and defensive testing anchor this Staff Security Engineer opportunity at Fullscript. Work in-office, at home, or combine both.

You will lead investigations and improve response readiness across cloud infrastructure, identity, endpoints, applications, and AI services. This Staff-level role includes threat modeling, purple-teaming, adversarial validation, and on-call incident response. You will translate threat intelligence into detections while working with Engineering and Platform teams on telemetry, authorization, and access-control requirements.

Key Responsibilities:

• Lead security investigations through containment and resolution
• Maintain response playbooks from investigation lessons
• Threat model AI agents and existing systems
• Coordinate indicator blocking across endpoint, network, and web layers
• Evaluate access-control changes and drive remediation

Requirements:

• 8+ years in security engineering or incident response
• Experience securing AWS or other cloud environments
• Modern SaaS and identity stack security experience
• Adversary tradecraft knowledge, including MITRE ATT&CK
• Ability to partner on telemetry and control requirements

Strengthen Fullscript’s incident response, cloud security, and AI defensive testing with practical Staff-level engineering leadership.

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