Senior Security Assurance Engineer (Internal Penetration Testing)

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Role

Role function

Security From the posting source checked Jun 20, 2026

Seniority

Senior From the posting source checked Jun 20, 2026

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About this role

Senior Security Assurance Engineer (Internal Penetration Testing) London Qube Research & Technologies (QRT) is a global quantitative and systematic investment manager, operating in all liquid asset classes across the world. We are a technology and data driven group implementing a scientific approach to investing. Combining data, research, technology, and trading expertise has shaped our collaborative mindset, which enables us to solve the most complex challenges. QRT's culture of innovation continuously drives our ambition to deliver high quality returns for our investors. The Security Assurance team is responsible for identifying, assessing, and validating security risks across QRT's technology environment. The team works closely with Security Engineers, Software Engineers, Infrastructure Engineers, Cloud Engineers, and Technology stakeholders to evaluate the effectiveness of security controls and strengthen the firm's overall security posture through adversarial testing and assurance activities. Your Future Role within QRT You will: - Conduct internal penetration testing across a wide range of systems, including trading infrastructure, cloud platforms, APIs, and business applications in both Windows and Linux environments. - Perform red team-style assessments and adversarial simulations to identify weaknesses in detection, response, and resilience capabilities. - Design and execute security assurance strategies to validate the effectiveness of security controls across applications, infrastructure, and cloud environments. - Coordinate external penetration testing engagements with third-party security vendors, including scoping, execution oversight, validation of findings, and remediation tracking across cloud, infrastructure, and application environments. - Identify, exploit, and clearly document vulnerabilities, providing actionable remediation guidance tailored to engineering teams. - Collaborate with product security

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