Security Architect – SC cleared

Company: CBSbutler
Apply for the Security Architect – SC cleared
Location: London
Job Description:

Overview

In this role you will provide security architecture expertise across complex, high-assurance programmes. You act as a senior security authority, embedding secure-by-design principles throughout delivery and offering architectural assurance for new and existing solutions. You’ll shape security standards, review multi-environment architectures, and translate threats into practical controls. The role combines hands-on architecture with mentoring and cross-functional collaboration in a secure, regulated context.

Responsibilities

  • Design and assure secure architectures across complex technology environments
  • Define security architecture principles, standards and design patterns
  • Embed security into architecture governance and design processes
  • Review cloud, hybrid and on-prem architectures for improvements
  • Translate cyber threats and risk into practical controls
  • Provide security architecture support to technical teams and transformation programmes
  • Ensure alignment with security standards, frameworks and risk requirements
  • Act as senior technical authority and mentor professionals

Key requirements

  • Proven experience as a Cyber Security Architect
  • Experience designing secure architectures in complex, high-risk or highly regulated environments
  • Strong knowledge of NCSC CAF, ISO 27001 and relevant security frameworks
  • Experience across cloud, hybrid and on-premises infrastructure
  • Strong understanding of cyber threats, vulnerabilities and risk-based design
  • Experience translating security and compliance requirements into technical architecture
  • Strong stakeholder management and communication skills
  • TOGAF certification or equivalent enterprise architecture experience is desirable
  • Stakeholder management
  • Communication
  • Mentoring/leadership
  • NCSC CAF
  • ISO 27001
  • Cloud, hybrid and on-premises architectures

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Posted: October 1st, 2026