Cyber Security Lead £115,000 - £135,000 London Our client is a growing technology business developing an enterprise AI platform for the financial services market. They''re looking for a Cyber Security Lead to take ownership of product, cloud and security assurance within a highly confidential, multi-tenant SaaS environment. Key Responsibilities: Lead product and application security across the development lifecycle, including threat modelling, secure code review, vulnerability management and CI/CD security controls Work closely with engineering and cloud teams to secure AWS environments, including IAM, network segmentation, encryption, logging and monitoring Own security controls around identity, permissions, tenant isolation, audit trails and incident response Lead security assurance activity covering SOC 2, ISO 27001 and wider customer security requirements Support enterprise customer security reviews, questionnaires and due diligence while helping shape security standards across the organisation Required Experience: 7+ years'' experience in cyber security or security engineering Strong experience securing cloud-native SaaS platforms, ideally within AWS environments Hands-on application security experience across threat modelling, OWASP and secure software development Good understanding of cloud security, identity, access controls, encryption and monitoring Experience delivering or implementing SOC 2 and/or ISO 27001 programmes Experience supporting enterprise security ..... full job details .....