Senior Penetration Tester — Offensive Security Lead
Role Description & Technical Scope
London Stock Exchange Group (LSEG) seeks a Senior Penetration Tester to join our internal offensive security team. This hands-on, highly technical role plans and executes penetration tests across systems and applications, uncovering vulnerabilities and raising security standards.
You will own engagements end-to-end, write technical reports, and collaborate with engineering teams to remediate findings. Experience with cloud, containers, and enterprise environments is essential; strong English
#J-18808-LjbffrReady to apply for this cyber security position?
This opportunity is hosted on London Stock Exchange Grouphttps://static.whatjobs.com/static/ajCore/img/jobPosting/companyLogo/whatJobs_ob_default.png. Click below to view full details and submit your application.
Key Details
- Date Posted: 23 Oct 2026
- Location: United Kingdom
- Employment: Permanent
- Workplace: Hybrid
- Domain: IT & Technology
Need an ATS CV for this role?
Optimize your cyber CV with ATS-friendly templates before submitting your application.
Build Free CV NowEmployer Profile
London Stock Exchange Grouphttps://static.whatjobs.com/static/ajCore/img/jobPosting/companyLogo/whatJobs_ob_default.png
Verified Tech EmployerEnterprise technology firm or security consultancy operating across the UK digital defense ecosystem.
More Jobs at London Stock Exchange Grouphttps://static.whatjobs.com/static/ajCore/img/jobPosting/companyLogo/whatJobs_ob_default.png