Cyber Security Lead

Cyber Security Lead

Oscar Technology | City Of London, ENG, GB

Posted 6 hours ago

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Description

Cyber Security Lead GBP115,000 - GBP135,000 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 reviews, questionnaires, audits or customer due diligence

  • Strong communication skills with the ability to work effectively with engineers, leadership and external stakeholders


Desirable:



  • Experience securing AI, LLM or agentic applications

  • Knowledge of ISO 42001, EU AI Act or AI security risks

  • Financial services or other regulated industry experience

  • Experience with Kubernetes, infrastructure as code or wider cloud-native technologies


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