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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Penetration Tester - **Company:** Worknest Secure - **Location:** Stevenage, UK - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Active Directory, Amazon Web Services, Software System Penetration Testing, Microsoft Azure, Mobile Application Software, Linux System Administration, Open Web Application Security, Phishing, Web Applications, Information Technology, Wireless Technologies, Vulnerability Analysis - **Published:** July 26, 2026 - **Apply:** https://uk.indeed.com/viewjob?jk=43e1c5347eb54b10 ## About the Role * Proven industry experience in application and infrastructure penetration testing * CTM Status * Deep knowledge of assessing both Windows and Linux environments, including strong knowledge of Active Directory and wireless technologies * Ability in preparing and launching social engineering campaigns (both phishing and vishing) * Strong understanding of OWASP, PTES and other penetration testing methodologies * Knowledge of how modern web apps are designed, developed and deployed across different platforms * Ability to program or script in your preferred language * Relevant degree in Computer Science, Ethical Hacking, Engineering or other relevant subject * Relevant security qualifications (such as OSCP, CEH, GPEN) * Good knowledge and understanding of network and OS principles * Good knowledge of various operating systems * Good knowledge of virtualisation Nice to have: * Knowledge of assessing cloud and hybrid environments (AWS and Azure) * Knowledge of assessing mobile applications (iOS/Android) * Knowledge of assessing hardware and embedded IoT devices, * Excellent spoken and written communication skills with strong attention-to-detail and accuracy * A passion for security and networks * Analytical and problem-solving skills with a can-do attitude and the ability to think laterally * Self-motivation with a commitment to continued development * Ability to work independently and as part of a team * Influencing and negotiation skills with the ability to build relationships at all levels * Willingness to learn ## Description * Perform formal and comprehensive application, infrastructure and other penetration testing assessments where appropriate and required * Provide well-written, concise, technical and non-technical reports in English * Perform vulnerability assessments and provide findings with remediation actions * Support with various client pre-engagement interactions, including scoping activities and proposal drafting to ensure that client needs are met * Manage and deliver penetration testing project activities within strict deadlines * Support the QA process to ensure high quality client reports are delivered in accordance with applicable Service Level Agreement (SLA) * Any other appropriate job duties in line with the associated skill and experience of the post holder ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [MCP Mashups: How AI Agents are Reviving the Programmable Web](https://www.wearedevelopers.com/videos/1392-mcp-mashups-how-ai-agents-are-reviving-the-programmable-web) - [Passkeys: Truly Phishing-Resistant? 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