
Senior Security Engineer
Mattermost is hiring a Senior Security Engineer to design and implement security tooling, harden cloud and IT infrastructure, detect/investigate/remediate incidents, administer IAM and security monitoring, and assess AI-enabled risks. Requires 3+ years in security engineering/incident response, experience with SIEM/EDR/SOAR, cloud security (AWS/GCP/Azure), Linux and Kubernetes/Docker, IAM, and Microsoft 365/Google Workspace management. Role is fully remote and based in the United Kingdom.












