Payment Security Engineer

Payment Security Engineer, 12m FTC, London

As a Payment Security Engineer at Pay.UK, you will apply specialist knowledge in payment security, cryptography and security architecture to services that support the UK’s interbank payment systems. This role offers broad technical scope across existing payment schemes, future service developments and security standards, with a clear focus on secure design, assurance and resilience.

You’ll work across the full lifecycle of payment services, helping ensure that security requirements, cryptographic controls and key management practices are defined, reviewed and maintained in a complex, regulated environment. If you’re looking for a role where deep technical knowledge is central to the work, this is a chance to support infrastructure that underpins payments used every day across the UK.

Accountabilities

• Review payment infrastructure, service and technology changes to identify security risks, control gaps and required improvements.
• Provide security guidance during the design, development, implementation and operation of payment systems and services.
• Assess security architectures and design proposals against Pay.UK requirements, security principles and industry good practice.
• Advise on cryptographic c