Senior Security Engineer

Pay.UK

HybridPosted July 29, 2026

About the role

Pay.UK is seeking a Senior Security Engineer for a 12-month fixed-term contract in London, United Kingdom, with a hybrid working arrangement. The role focuses on designing and implementing security controls that protect payment systems, platforms and supporting infrastructure. You will review system architectures to identify security risks and define remediation actions, carry out security testing and vulnerability analysis, and coordinate fixes with engineering and technology teams. You will develop and maintain security standards, engineering patterns and technical documentation for secure delivery; support incident investigation and response activities; collaborate with engineers, architects and operations to embed security requirements into delivery and change processes; monitor security threats, control performance and technical risk, and recommend improvements based on evidence; provide practical security guidance on cloud, infrastructure, applications and access control decisions.

Senior Security Engineer

Pay.UK

HybridPosted July 29, 2026

About the role

Pay.UK is seeking a Senior Security Engineer for a 12-month fixed-term contract in London, United Kingdom, with a hybrid working arrangement. The role focuses on designing and implementing security controls that protect payment systems, platforms and supporting infrastructure. You will review system architectures to identify security risks and define remediation actions, carry out security testing and vulnerability analysis, and coordinate fixes with engineering and technology teams. You will develop and maintain security standards, engineering patterns and technical documentation for secure delivery; support incident investigation and response activities; collaborate with engineers, architects and operations to embed security requirements into delivery and change processes; monitor security threats, control performance and technical risk, and recommend improvements based on evidence; provide practical security guidance on cloud, infrastructure, applications and access control decisions.

Qualifications: Practical experience designing and implementing security controls for infrastructure, applications and platforms; knowledge of security architecture, vulnerability management, incident response, and security control implementation; experience reviewing technical designs to identify security risks and define remediation actions; experience securing cloud or hybrid environments, including selecting and implementing appropriate security controls; experience producing technical documentation and working with cross-functional technology teams to deliver secure solutions.

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Qualifications: Practical experience designing and implementing security controls for infrastructure, applications and platforms; knowledge of security architecture, vulnerability management, incident response, and security control implementation; experience reviewing technical designs to identify security risks and define remediation actions; experience securing cloud or hybrid environments, including selecting and implementing appropriate security controls; experience producing technical documentation and working with cross-functional technology teams to deliver secure solutions.