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Senior Security Engineer

Location: Remote
Compensation: To Be Discussed
Reviewed: Tue, Sep 29, 2026
This job expires in: 30 days

Job Summary

To monitor and mitigate security incidents across Mozilla's products and services, the full-time Senior Security Engineer will act as an incident commander, design security alerts and workflows, and conduct threat hunting activities while working remotely from Sweden.

Key responsibilities
  • Identify and respond to security incidents on a global scale
  • Design and maintain a portfolio of security alerts, automated actions, playbooks, and escalation workflows
  • Conduct threat hunting activities and maintain strategies to combat sophisticated threat actors
Required qualifications
  • 5+ years of experience managing security incidents in Security Operations Centers (SOC), Product Security Incident Response Teams (PSIRT), or Computer Security Incident Response Teams (CSIRT)
  • Expertise with security information and event management (SIEM) systems, preferably Splunk
  • Hands-on experience with endpoint detection and investigation tools
  • Experience with security orchestration and automation (SOAR) platforms
  • Practical experience working with cloud technologies such as Google Cloud Platform or AWS

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