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Security Architecture Lead - AI Infrastructure

Job in Greater London, London, Greater London, W1B, England, UK
Listing for: AI Startups UK
Full Time position
Listed on 2026-09-04
Job specializations:
  • IT/Tech
    Security Management & Operations
Salary/Wage Range or Industry Benchmark: 120000 - 180000 GBP Yearly GBP 120000.00 180000.00 YEAR
Job Description & How to Apply Below
Location: Greater London

Callosum, London-based AI infrastructure company, seeks a security leader to design and guarantee security across APIs, orchestration, agentic systems, and physical infrastructure. You will translate requirements for engineering teams, drive assurance for deployments, and build a dedicated security function.

You will own security strategy, oversee threat modelling and incident response, and lead a team across architecture and operations, partnering with customers and partners in high-stakes

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