Security Lead for AI Systems & Orchestration

Company: Callosum
Apply for the Security Lead for AI Systems & Orchestration
Location: London
Job Description:

Callosum is seeking a senior Security Architect to own the security architecture across our API, orchestration stack, agentic systems, and physical infra. You will translate customer requirements into concrete technical expectations and guide engineering teams to verifiable security guarantees.

You will lead the security function, drive threat modelling, incident response readiness, and engagements with customers and partners while building a scalable security organization across Callosum.

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Posted: October 21st, 2026