> Markdown version of [/jobs/ext/3238874-senior-penetration-tester](https://www.wearedevelopers.com/jobs/ext/3238874-senior-penetration-tester). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Penetration Tester - **Company:** RMT Technology - **Location:** Newcastle upon Tyne, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Software System Penetration Testing, Microsoft Azure, Burp Suite, Cloud Computing Security, Cyber Security, Kali Linux, Nmap, PCI Data Security Standards, Service Development Studio, Security Information and Event Management, Web Applications, Metasploit, Nessus, CIS Benchmarks, Qualys, Vulnerability Analysis - **Published:** September 22, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=e974362f19139ea3 ## About the Role * Minimum five years' experience delivering penetration testing engagements. * Strong experience conducting external, internal and web application penetration testing. * Experience conducting technical security reviews and vulnerability assessments. * Proficiency with tools such as Burp Suite Professional, Nessus, Qualys, OpenVAS, Nmap, Metasploit, Kali Linux and related security testing tools. * Strong understanding of common attack techniques, vulnerability assessment methodologies and remediation approaches. * Excellent report-writing and communication skills. * Ability to explain technical findings to both technical and non-technical stakeholders. * Strong client relationship and stakeholder management skills. * Industry-recognised certifications such as CREST CRT, OSCP, CSTM, CHECK Team Member or equivalent. Desirable * Experience delivering Cyber Essentials Plus assessments. * Experience with cloud security assessments across Microsoft Azure and Microsoft 365 environments. * Exposure to SIEM, EDR and security monitoring platforms. * Understanding of frameworks including NIST CSF, ISO 27001, PCI-DSS and CIS Controls. * Experience leading teams or mentoring junior consultants. ## Description We are seeking an experienced Lead Penetration Tester to join our growing Cyber Security practice. With a minimum of five years' experience delivering penetration testing and technical security assessments, you will play a key role in leading client engagements, developing our service offerings and mentoring junior consultants. Working closely with the wider RMT Technology IT and Cyber team, you will deliver and oversee a broad range of services including penetration testing, Cyber Essentials Plus assessments, technical information security reviews and security assessments aligned to recognised frameworks such as NIST, ISO 27001 and PCI-DSS. As a senior member of the team, you will provide technical leadership, assure the quality of assessment outputs, contribute to service development and support client-facing activities. You will maintain awareness of emerging threats, vulnerabilities and best practice to ensure our clients receive practical, risk-based security advice., * Lead and deliver infrastructure, web application and cloud security penetration testing engagements. * Conduct Cyber Essentials and Cyber Essentials Plus assessments. * Deliver technical security reviews and vulnerability assessments. * Produce high-quality technical and executive reports with clear remediation guidance. * Scope, plan and manage penetration testing engagements. * Mentor and support junior consultants to develop technical capability. * Contribute to the development of testing methodologies, tools and service offerings. * Support pre-sales activities, proposals and client presentations where required. * Maintain awareness of emerging threats, vulnerabilities and industry best practice.