Lead Penetration Tester in Solihull

Security Testing Role – Dive Deep, Make an Impact

You’re motivated by a deep curiosity and a dedication to excellence. Whether dissecting telecoms protocols or navigating the intricacies of enterprise IT systems, you thrive on appreciating how things work — and how they can be fortified. Your approach is hands‑on and analytical, grounded in experience and a clear sense of purpose: making systems more secure and resilient. In this role, you’ll join a collaborative, inclusive team that values expertise, diverse perspectives, and mutual support. You’ll have the opportunity to mentor and guide emerging talent, shaping the next generation of penetration testers. We’ll give you the freedom to explore, experiment, and grow — while contributing to the development of robust, secure networks that have real‑world impact.

What You’ll Be Doing

• Steering technical assessments of telecoms equipment, identifying vulnerabilities and guiding the direction of testing activities.
• Mentoring and supporting junior team members, fostering their development through hands‑on guidance and knowledge sharing.
• Applying advanced testing techniques, including both positive and negative approaches such as fuzzing, to rigorously evaluate network functions and protocols.
• Scripting and automating assessments to enhance efficiency, consistency, and scalability across projects.
• Investigating and articulating findings.
• Contributing to high‑quality technical reports, ensuring they are thorough and insightful.
• Helping to shape the test strategy.

Successful Applicants must be able to commute to the UKTL offices in Birmingham at least twice a week. We strive to offer a great work life balance - if you are looking for full time, part time or flexible options, we will try to make this work where business possible. This will be dependent on the kind of role you do and part of the business you work in.

What You’ll Learn

• Telecoms protocols such as Diameter, HTTP/2, SCTP, NGAP, or you can learn them with the curiosity and aptitude we value.
• Access to top‑tier learning platforms, including: Offensive Security Learn Unlimited Subscription with Exam attempts included. Hack The Box PentesterLab subscription Plus telecoms‑specific online learning resources.

What We’re Looking For

• Thrive in complex technical environments, with a proven ability to dissect and solve challenging problems across diverse systems.
• Contribute fresh perspectives, while working effectively with colleagues across disciplines to drive innovation and shared success.
• Demonstrate a genuine passion for security testing, with a commitment to continuous learning and staying ahead of emerging threats.
• Have hands‑on experience in penetration testing, coupled with a solid understanding of exploitation techniques and how they apply in real‑world scenarios.

If this sounds like you, we’d love to hear from you. Let’s build something secure together.

Please note: Applications will be reviewed, and interviews conducted throughout the duration of this advert therefore we may at any time bring the closing date forward. We encourage all interested applicants to apply as soon as practical. We actively recruit citizens of all backgrounds, but the nature of our work in this specific area means that nationality, residency and security requirements are more tightly defined than others. To work in this role, you will need to have an SC clearance with no restrictions, or you must have the ability to obtain an SC clearance.