Security Engineer, Detection & Response

We are looking for a Security Engineer, Detection & Response to build and operate our detection and response capabilities as Brain Co. expands. Reporting directly to the Head of Security, you will partner closely with engineering, infrastructure, infrastructure security, IT, and operational teams to protect our environments and respond effectively to security incidents.

This is an engineering-focused builder role rather than a passive alert-monitoring position. You will strengthen our security posture from the ground up: designing high-signal detections, automating triage and investigation workflows, leading cross-functional incident response, and converting incident findings into safer engineering defaults across the company.

The program is early enough that your judgment will shape the tooling, workflows, metrics, and operating model—not just the alerts you investigate. You will have significant autonomy to improve signal quality, streamline integrations, and turn incident lessons into stronger engineering defaults across the organization.