Conduct infrastructure penetration tests across complex client environments, identifying and exploiting security vulnerabilities.Perform hands-on penetration testing of Kubernetes clusters, containerised environments and cloud-native infrastructure.Assess Kubernetes configurations, RBAC permissions, service accounts and potential privilege escalation vulnerabilities.Develop detailed technical reports documenting vulnerabilities, risk levels and recommended remediation actions.Lead technical engagements, communicate findings to stakeholders and provide guidance on improving overall security posture.Penetration Tester - Required ExperienceActive SC ClearanceCyber Scheme Team Leader qualification, ideally CSTL-INF.Proven experience conducting infrastructure penetration testing within enterprise environments.Strong hands-on Kubernetes security and penetration-testing experience.In-depth understanding of container security, Docker, Kubernetes RBAC, privilege escalation and common cloud-native vulnerabilities.Experience leading penetration-testing engagements, producing technical reports and presenting findings to technical stakeholders.Interviews:October 2026Start Date:November 2026
Penetration Tester in London employer: X4 Technology
Join a leading global energy trading business that values its employees and fosters a dynamic work culture. With a hybrid working model in London, you will enjoy a competitive salary, substantial bonuses, and opportunities for professional growth while working closely with traders and senior stakeholders on high-value transactions. This role offers the chance to make a meaningful impact in a fast-paced environment, ensuring your contributions are recognised and rewarded.
