Senior Penetration Tester

Commonwealth Bank • Sebringville, Ontario • Posted June 27, 2026

About the Role

Senior Penetration Tester

  • Lead high-impact penetration testing across modern applications, cloud and infrastructure environments.

  • Join a team safeguarding the bank and helping protect customers through best-in-class cyber security outcomes.

  • Work with modern tooling and evolving AI-supported security testing practices to help shape what’s next in cyber defence.

    • Do work that matters

    Bring your ambition and we’ll help you grow, belong and shape what’s next.

    As a Senior Penetration Tester, you will lead and deliver technical penetration testing that helps maintain the bank’s risk and security posture. You’ll work across web, infrastructure, networks, cloud, SaaS, mobile and emerging technologies including LLM-based applications, while partnering with stakeholders to identify security weaknesses, demonstrate business impact and support remediation.

    See yourself in our team

    Group Security is pa...