Senior Security Engineer, 12-Month FTC, Payments Platform

Pay.UK Limited; Greater London; On-site; GBP 85,000 - 110,000; Full time

Benefits offered by this job

30 days annual leave

Employee assistance programme

Cycle to Work Scheme

Season ticket loan

Fitness subsidy

Job summary

Pay.UK is seeking a Senior Security Engineer in London for a 12-month fixed-term contract. You will design and implement security controls across payment systems, review architectures, and lead vulnerability management with cross-functional teams to ensure secure delivery.

The role focuses on practical security engineering, incident response, and cloud/hybrid environments, aligning with Pay.UK's mission to keep UK payments secure and reliable.

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 clear 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.

Responsibilities

• Design and implement security controls that protect payment systems, platforms and supporting infrastructure.
• Review system architectures and technical designs to identify security risks and define clear remediation actions.
• Carry out security testing and vulnerability analysis, then prioritise and track fixes with engineering and technology teams.
• Develop and maintain security standards, engineering patterns and technical documentation for secure delivery.
• Support incident investigation and response activities, including technical analysis, containment and follow-up actions.
• Collaborate with engineers, architects and operational teams 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, application and access control decisions.

Skills

Security controls design

Security architecture

Vulnerability management

Incident response

Cloud security

Job description

Pay.UK is seeking a Senior Security Engineer in London for a 12-month fixed-term contract. You will design and implement security controls across payment systems, review architectures, and lead vulnerability management with cross-functional teams to ensure secure delivery.

The role focuses on practical security engineering, incident response, and cloud/hybrid environments, aligning with Pay.UK's mission to keep UK payments secure and reliable.