> Markdown version of [/jobs/ext/4666178-penetration-tester](https://www.wearedevelopers.com/jobs/ext/4666178-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:** Cytix - **Location:** Manchester, United Kingdom - **Experience:** Experienced - **Salary:** £45,000 - £55,000 - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Software System Penetration Testing, Mobile Application Software, Software Vulnerability Management, Web Applications, Software Security - **Published:** November 11, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5961479299 ## About the Role * 2+ years in Penetration Testing, Application Security Engineering, or a similar offensive security role. * A passion for all things AppSec, you're great at finding vulnerabilities in applications and demonstrating their impact. * Ability to work independently and take ownership over service delivery for clients. * Comfortable working a smaller environment where decision are made quickly and pragmatically. * Solid communication and consulting skills. ## Description As a Penetration Tester at Cytix, you'll form a core part of our Application Security team, and play in pivotal role in our organisation. In this role, you will be responsible for: * Pentesting web applications, APIs, mobile applications, etc for our clients across a range of industries. * Acting as the subject matter expert on application security, working with stakeholders of both a technical and non-technical nature to assist in support in vulnerability remediation and prevention. * Acting as the go to point of contact for all things related to related to application security. * Working with our in-house development team to build a next generation Application Security product. * Helping to keep the Cytix platform secure by performing regular penetration testing. Collaborating with other teams in the business to ensure our clients get the best product and service experience possible.