Full-time

Security Architect

Posted by Response Informatics • greater london, England, United-Kingdom

📍 greater london, England 🕒 February 23, 2026

About the Role

Job Title: Security Architect with SIEM & SOAR

Job Location: London, UK (Onsite)

Job Type: Contract – Inside IR35

Job Description

We are seeking an experienced Security Architect to lead the design, deployment, and optimization of Palo Alto Cortex XDR across enterprise environments. The role requires deep expertise in SIEM and SOAR Platform, strong exposure to security automation, and hands‑on experience integrating with SIEM platforms for centralized monitoring and incident response.

The architect will drive advanced threat detection, automated response use cases, and SOC modernization initiatives while aligning security operations with best practices and zero‑trust principles.

Key Responsibilities

  • XDR Architecture & Strategy
    • Design and own the Cortex XDR architecture across endpoints, servers, and cloud workloads
    • Define XDR onboarding strategy for endpoints, netw...

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