> Markdown version of [/jobs/ext/3578453-penetration-tester](https://www.wearedevelopers.com/jobs/ext/3578453-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). --- # Penetration Tester - **Company:** OpenSourced - **Location:** Leeds, UK (Remote available) - **Salary:** £40,000.0 - £50,000.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Web Accessibility, Active Directory, Application Programming Interfaces (APIs), Amazon Web Services, Android Software Development, Apple IOS, Software System Penetration Testing, Microsoft Azure, Cloud Computing, Cyber Security, Computer Programming, Software Debugging, Mobile Application Software, Linux System Administration, Linux Security Modules, Wireless Security, Open Web Application Security, Anti-Phishing, Web Application Security, Scripting, Operating System Security, Vulnerability Analysis - **Published:** October 4, 2026 - **Apply:** https://www.reed.co.uk/jobs/penetration-tester/57419540 ## About the Role We are looking for a Penetration Tester with: * Proven commercial penetration testing experience * Application penetration testing experience * Infrastructure penetration testing experience * CTM status * Strong Windows and Linux security knowledge * Strong Active Directory knowledge * Knowledge of wireless security technologies * Understanding of OWASP and PTES penetration testing methodologies * Web application security knowledge * Network and operating system security knowledge * Vulnerability assessment experience * Scripting or programming experience * Strong technical report writing skills Relevant cyber security qualifications such as OSCP, CEH or GPEN would also be beneficial. Desirable Experience Experience in any of the following would be advantageous: * AWS security testing * Azure security testing * Cloud and hybrid environment penetration testing * Mobile application security testing * iOS or Android application testing * IoT and embedded device security testing * Social engineering assessments * Phishing and vishing campaigns, If you are an experienced Penetration Tester, Offensive Security Consultant, Ethical Hacker or Cyber Security Consultant with CTM status and strong application and infrastructure penetration testing experience, apply today to discuss the opportunity. Skills * CST * check team * API Debugging & Testing * Web Accessibility ## Description As a Penetration Tester, you will be responsible for: * Performing application penetration testing * Performing infrastructure and network penetration testing * Conducting vulnerability assessments * Identifying security vulnerabilities and recommending remediation actions * Assessing Windows and Linux environments * Testing Active Directory environments * Producing detailed technical and non-technical penetration testing reports * Managing penetration testing projects from initial scoping through to completion * Supporting client scoping and pre-engagement activities * Working within agreed project deadlines and service levels * Supporting quality assurance of penetration testing reports The role involves delivering comprehensive penetration testing engagements and providing clients with practical, actionable security recommendations.