Senior Penetration Tester - CHECK Team Leader

Reference: 51tgi99n7anttfonu9s6

We are seeking a Senior Penetration Tester to lead a CHECK team and deliver high-quality security assessments across a varied portfolio of applications, infrastructure, networks and cloud environments. You will take ownership of engagements from scoping and planning through to testing, reporting and client debriefs, ensuring that work is completed to a consistently high technical and professional standard. The role will involve selecting appropriate methodologies, identifying and exploiting vulnerabilities safely, assessing business impact, and producing clear, accurate reports that support effective remediation.

As Team Leader, you will provide technical direction and mentoring to penetration testers, review test plans and findings, and quality-assure reports before delivery. You will contribute to resource planning, scheduling and risk management, while maintaining strong working relationships with clients and internal stakeholders. The position will also involve supporting the development of testing standards, improving service delivery, contributing to proposals and workshops, and keeping current with emerging threats, attack techniques and defensive controls. You may be required to lead complex or sensitive engagements and communicate findings to both technical and non-technical audiences.

Applicants should have substantial commercial penetration testing experience and a demonstrable record of delivering infrastructure, web application and network security assessments. You should hold, or be working towards, relevant professional certifications and possess strong knowledge of common attack methodologies, security frameworks and industry tools. Experience leading assessment teams, reviewing technical output and managing client engagements is essential. The successful candidate will combine hands-on technical capability with sound judgement, excellent written and verbal communication skills, and a methodical approach to problem-solving. A commitment to ethical testing, confidentiality, continuous learning and high-quality customer service is expected.

COMPETITIVE SALARY
Added 30/09/2026
Reference: 51tgi99n7anttfonu9s6

Senior Penetration Tester - CHECK Team Leader

London, England, United Kingdom Permanent Penetration Tester

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