Senior Security Engineer, AWS Security Verification & Validation Team
We are seeking a Senior Security Engineer to join a specialist Security Verification and Validation team responsible for assessing the resilience, security, and compliance of complex cloud-based services. In this role, you will help identify security weaknesses before they can affect customers, strengthen defensive controls, and promote secure engineering practices across a large-scale technology environment. You will work closely with software engineers, architects, incident responders, and risk specialists to evaluate systems throughout their development and operational lifecycles.
Your responsibilities will include designing and executing security assessments, threat modelling exercises, penetration tests, architecture reviews, and control validation activities. You will investigate vulnerabilities across applications, infrastructure, networks, identity systems, and data services, then produce clear technical findings and practical remediation guidance. You will also develop repeatable testing methodologies, automate assessment and reporting workflows, review security exceptions, and track corrective actions through to completion. The role may involve analysing complex incidents, validating security improvements, contributing to security standards, and communicating risk and recommendations to both technical and senior stakeholders.
The successful candidate will have substantial experience in security engineering, penetration testing, vulnerability research, application or infrastructure security, and/or security assurance within large-scale environments. Strong knowledge of cloud security principles, identity and access management, network security, encryption, secure software development, and common attack techniques is essential. Experience with scripting or programming, security testing tools, and automated analysis is highly desirable. You should be comfortable working independently on ambiguous problems while also collaborating effectively across multiple teams. Excellent written and verbal communication skills, sound judgement, attention to detail, and the ability to explain complex technical risks in clear business terms are required. Relevant professional certifications or equivalent practical experience are welcome.
Senior Security Engineer, AWS Security Verification & Validation Team
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