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🥝 Penetration Tester

Capital One | nottingham, United-Kingdom | Posted June 30, 2026

Job Description

Location: London or Nottingham, United Kingdom. This permanent position is located at either London or Nottingham Head Offices with a hybrid working model.

About the Role

Capital One Offensive Security is dedicated to reducing cyber risk by uncovering vulnerabilities in the enterprise cyber environment through coordinated ethical hacking and penetration testing scenarios. The Penetration Tester will plan, coordinate, execute, and report sophisticated ethical hacking exercises, identify cyber vulnerabilities, and provide recommendations to management to improve the security posture of enterprise systems. The role focuses on application and network security assessments and building industry-leading ethical hacking capabilities to protect Capital One's brand, systems, and data.

What You’ll Do

  • Perform penetration testing of APIs, web applications, networks, and cloud services.
  • Assess development practices and help drive corporate se...

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