Security engineer, application security (UK)

Reference: b49mdtoabkcg6zxd3soc

We are seeking a Security Engineer, Application Security, to help strengthen the security of modern applications and services across the software development lifecycle. You will work closely with software engineers, architects, product teams and technology stakeholders to identify security risks, improve engineering practices and support the delivery of secure, resilient products. This role is suited to someone who enjoys solving complex technical problems, influencing teams and making security practical and scalable.

Your responsibilities will include conducting threat modelling, reviewing application designs and source code, and identifying vulnerabilities across web applications, APIs, cloud services and supporting infrastructure. You will help define and improve secure development standards, security controls and engineering guidance, while supporting vulnerability management and remediation activities. You will also contribute to security testing, including the use of automated tools, manual assessments and penetration testing, and help investigate and respond to application security incidents. A key part of the role will be building strong relationships with development teams and embedding security throughout planning, development, testing and release processes.

You should have professional experience in application security, software engineering, product security or a closely related discipline, with a strong understanding of common web and API vulnerabilities, secure coding principles and relevant security frameworks such as OWASP. Experience with security testing tools, code repositories, CI/CD pipelines and cloud-based environments is highly desirable. You will be comfortable communicating technical risks to both technical and non-technical audiences, prioritising effectively and providing clear, actionable advice. Relevant certifications or demonstrable hands-on experience are welcome, but curiosity, sound judgement and a commitment to continuous learning are equally important. The role is based in the UK and may involve collaboration with colleagues across multiple locations.

COMPETITIVE SALARY
Added 07/09/2026
Reference: b49mdtoabkcg6zxd3soc

Security engineer, application security (UK)

London, England, United Kingdom Permanent Application Security

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