Security Engineer, Corp IT

Fluidstack is building large-scale compute infrastructure for frontier AI. The Security Engineer, Corp IT will secure the corporate environment across identity, endpoints, SaaS, and email; build attack detection and response; engineer zero-trust access; and automate security controls and policies.

Responsibilities:

• Secure the corporate environment end to end: identity, endpoints, SaaS, and email for a workforce growing 10x
• Build detection and response for the corp attack surface, from phishing to token theft to insider risk
• Engineer zero-trust access: SSO, device trust, and least-privilege provisioning that scale with hiring instead of against it
• Automate the controls so security runs as code and policy, not tickets and exceptions

Requirements:

• You've secured a fast-growing company's corp stack hands-on: IdP, MDM, email, SaaS
• You've built detections that caught real attacks, and tuned out the noise that buries teams
• You treat identity as the perimeter and have implemented that in practice
• You automate anything you do twice, in code, not runbooks
• You've responded to live incidents and made the containment call under pressure
• Bonus: Okta or equivalent at depth. SIEM and SOAR engineering. macOS and Windows fleet security. Insider-risk programs