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Security Engineer, Detection & Response

Brain Co.· Engineering
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Hybrid (San Francisco Bay Area), Hybrid (New York City, NY), Hybrid (Remote)Full-timePosted 4d ago

About the role

Security Engineer focusing on building and operating Brain Co.'s detection and response capabilities. You will design high-signal detections, automate triage/investigation workflows, lead cross-functional incident response, and convert incident findings into safer engineering defaults. Early-stage program with significant autonomy to shape tooling, workflows, metrics, and operating model.

Responsibilities

  • Design, build, and maintain automation, playbooks, and systems for timely triage, investigation, and incident response, using sound software engineering practices and modern AI tools where they add value.
  • Develop and refine high-signal detections so security findings are actionable and noise is minimized.
  • Integrate security telemetry and tooling across our cloud and application stack to enable consistent investigation and self-service triage.
  • Lead cross-functional incident response across applications, cloud infrastructure, endpoints, identity, and internal services.
  • Translate incident data and response metrics into secure-by-design improvements alongside product and infrastructure teams.
  • Continuously evaluate response procedures and partner across engineering, infrastructure security, IT, and operational teams to close gaps and improve the operating model.

Qualifications

  • Demonstrated capability in security engineering, detection engineering, or incident response.
  • Hands-on experience investigating security incidents or suspicious behavior in complex environments.
  • Practical experience with EDR, SIEM, SOAR, log-management, or equivalent detection-and-response tooling.
  • Ability to write code and build software automation or detections in at least one relevant scripting or query language.
  • Strong understanding of modern cloud infrastructure and SaaS security principles.
  • Sound risk-based judgment when prioritizing threats and operational tasks.
  • Ability to make sound, timely decisions with incomplete information during active incidents.
  • Clear communication and cross-functional collaboration skills during high-pressure situations.

Skills

Required:Security engineering / detection engineering / incident responseIncident investigationEDR, SIEM, SOAR, log-management toolingCoding / automationCloud and SaaS securityrisk-based prioritizationDecision-making under pressureCommunication & collaboration
Last updated Oct 22, 2026. Interested? Apply on the company site.

About Brain Co.

AI for the world's most important institutions

Building an AI platform and applications to deliver impact for real-world problems.

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