7 of 7 Permanent Security Penetration Tester Jobs in London

Hack The Box is looking for a Senior Penetration Tester to join their offensive security team in Greater London. This role involves conducting penetration tests on applications, infrastructure, and cloud environments. Key responsibilities include documenting findings, collaborating with … teams, and contributing to improvements in testing methodologies. Candidates should have proven experience in penetration testing, proficiency with security tools, and strong reporting skills. Relevant certifications and threat modeling experience are advantageous. #J-18808-Ljbffr ...

Starling Bank in the United Kingdom is seeking an experienced Penetration Tester to join our security team. You will work with cyber security professionals to ensure our services are designed, developed and operated securely, performing security ...

Darktrace in London is seeking a hands-on Penetration Tester to identify security risks across the organisation's digital landscape. You will conduct tests on web applications, networks, APIs, mobile apps and cloud environments, and deliver actionable insights to security ...

Starling Bank Limited is seeking an experienced Penetration Tester to join our security team in a hybrid role. You will conduct tests across mobile, web, cloud, and infrastructure, partner with engineering to secure development, and help remediation efforts to lift overall … security posture. You will mentor colleagues and help evolve our testing methodologies while staying current with industry advancements in a fast-paced fintech environment. #J-18808-Ljbffr ...

Darktrace Ltd. seeks a Penetration Tester to identify security risks across the organisation's digital landscape. The role focuses on hands-on testing of web apps, networks, APIs, mobile apps and cloud environments, delivering actionable insights to security ...

Bridewell is seeking an experienced Senior Penetration Tester to deliver testing engagements across infrastructure and web applications, with a focus on client-facing leadership. The role includes contributing to tenders, producing detailed reports, and advancing testing methodologies. You will join a diverse team with ...

Citi in London and Belfast is seeking an experienced AI Offensive Security Analyst to join the Offensive Security and Vulnerability Management (OSVM) team. You will test AI applications, perform penetration tests, and help build AI-powered security tooling … scalable defense. You’ll work across web apps, APIs, and AI agents, triaging findings, reporting risk clearly, and integrating security into development with a focus on real-world enterprise deployments. #J-18808-Ljbffr ...