3 of 3 Penetration Tester Jobs in East London

Penetration Tester – Infrastructure Salary: £70,000–£100,000 (depending on experience) Location: Hybrid – London (2 days per week on-site) Note: To be eligible for this role, you must be eligible for UK Security Clearance (SC). A high-performing digital security team is looking for an experienced Infrastructure Penetration Tester to join them in delivering … is suited to testers who thrive in technically demanding scenarios, want autonomy, and are motivated by work with real-world impact. Key Responsibilities Conduct internal infrastructure and Active Directory penetration tests in live production environments Produce clear, concise reports tailored to both technical and non-technical audiences Build trusted relationships with clients in a consultancy-facing capacity Work within … the evolution of internal tooling and testing methodologies Operate effectively in environments with limited documentation or predefined processes Essential Experience and Skills At least 4 years’ experience in infrastructure penetration testing Strong knowledge of Active Directory exploitation techniques (privilege escalation, lateral movement, etc.) Confident working in high-stakes, sensitive environments Strong command-line skills across Windows and Linux systems More ❯

Senior Penetration Tester -240,000+ Total Package Entasis Partners are proud to be exclusively supporting a global organisation at the forefront of innovation in financial systems and high-performance computing. This is not your average security role. Our partner operates in a deeply technical, high-trust environment where the scale of data, the pace of experimentation, and the … of internal talent make for an exceptionally challenging and rewarding opportunity. With a newly developed central London site focused on next-generation research, this firm is seeking a Senior Penetration Tester to strengthen its already world-class internal security capability. The Opportunity This is a hands-on, highly autonomous role embedded within a specialist cyber function. You’ll … be trusted to scope, execute, and deliver sophisticated penetration tests and control assessments across a range of technologies including Kubernetes, Jenkins, and Windows-based infrastructure. More than just finding issues, you’ll work in partnership with teams across the business to advise, remediate, and embed meaningful improvements. The environment is agile, collaborative, and engineered for depth not red tape. More ❯

CHECK Certified/Penetration Tester/Outside IR35/550 pd/6 Month/Remote I'm looking to speak to highly skilled Pentesters, with recent hands on experience and well-versed in Consultancy environments that hold CHECK certification . Recent hands-on experience and C-Suite stakeholder management will be paramount in this role. The consultancy … to remediate discovered vulnerabilities. Develop detailed reports with findings and recommendations. C-Suite stakeholder management across the client and consultancy. Non-negotiable experience required: 4+ years experience in a Penetration testing role. CHECK Certification . Proven track record of working closely with and reporting to executive level stakeholders . The role is open for applications from 05/… or get in contact with me directly (Ben Sheppard) if this role is a good fit, email an updated copy of your CV to ben.sheppard@sr2rec.co.uk CHECK Certified/Penetration Tester/Outside IR35/550 pd/6 Month/Remote More ❯