Principal Security Engineer, Product & Infrastructure

Reference: 5nwp28s2fcmu9t4941eh

We are seeking a Principal Security Engineer, Product & Infrastructure to define and advance security strategy across products, platforms, and core infrastructure. This is a senior technical leadership role for an experienced security professional who can balance strategic direction with hands-on delivery. You will partner with engineering, product, infrastructure, and operational teams to build secure-by-design systems, strengthen organisational resilience, and ensure security is embedded throughout the software development and service lifecycle.

You will lead the identification, assessment, and treatment of security risks across cloud environments, applications, networks, and critical services. Responsibilities include establishing security architecture principles and standards; reviewing designs and significant technical changes; developing threat models and risk assessments; improving vulnerability management, detection, response, and security monitoring; and guiding the secure adoption of new technologies. You will help define and maintain security controls, policies, and engineering patterns, while supporting incident response and contributing to post-incident improvements. The role also involves influencing technical roadmaps, mentoring engineers, and driving pragmatic security initiatives from concept through implementation.

The successful candidate will bring substantial experience in product security, infrastructure security, cloud security, or a closely related discipline, with a track record of delivering security improvements in complex technical environments. Strong knowledge of secure software development, identity and access management, network security, cryptography, vulnerability management, and cloud platforms is expected. You should be comfortable analysing complex risks, communicating clearly with both technical and non-technical audiences, and making sound decisions in fast-moving environments. Experience with security frameworks, automation, DevSecOps practices, and regulatory or compliance requirements would be advantageous. A collaborative, curious, and outcome-focused approach is essential, along with the ability to influence without relying solely on formal authority.

£80,000.00 - £120,000.00
Per annum
Added 04/09/2026
Reference: 5nwp28s2fcmu9t4941eh

Principal Security Engineer, Product & Infrastructure

London, England, United Kingdom Permanent Security Engineer

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