Full time
London Stock Exchange Group
London, United Kingdom
LSEG is seeking a Senior Penetration Tester to join our internal offensive security team. This role is hands-on and deeply technical, responsible for planning and driving penetration tests across a wide range of systems and applications. The successful candidate will be a skilled offensive security professional with a passion for uncovering vulnerabilities and improving security posture through thorough testing and teamwork. Key Responsibilities Conduct in-depth penetration tests on applications, infrastructure, and cloud environments. Take full ownership of assigned penetration testing engagements end-to-end and deliver with limited oversight. Compile technical scoping documents, track and document assessment metadata Engagement details (who, what, when, where) Testing team members and roles Tools and methodologies used Schedule and timelines Target systems and environments Constraints, exclusions, and limitations Testing activities and event logs Document...