Senior Penetration Tester

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OverviewSecurity 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 appreciation 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
As a senior member of the team, you’ll play a pivotal role in shaping and delivering security assessments across complex hardware and software systems. Your responsibilities will include: 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. About You
What We’re Looking For We’re seeking individuals who bring both depth of experience and a collaborative mindset to the team. Ideally, you: 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.
What You’ll Learn You’ll either bring existing knowledge of telecoms protocols like Diameter, HTTP/2, SCTP, NGAP— or show the curiosity and aptitude to learn. Either way, we’ll promote your growth. You’ll get 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
About Us UKTL is building leading edge Telecoms testing facilities to keep our telecommunications networks safe, accelerate the roll-out of new technologies, and grow our world leading telecoms sector to maintain resiliency and security. Read more about UKTL here! Successful candidates will join a state-of-the-art facility and be supporting the team conducting testing and research on the latest technologies and innovations in the industry. You will work alongside our infrastructure and Cybersecurity professionals to ensure that the UK’s world class Telecoms infrastructure grows in a resilient and secure manner underpinning growth in other industry sectors. As a trusted and independent national capability, UKTL interacts with standards bodies, Academia, and Government Departments as well as Communications Service Providers and equipment vendors. Organizations
Seniority level: Mid-Senior level Employment type: Full-time Job function: Information Technology Industries: Research Services
We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI. EEO and diversity statements: NPL and DSIT have strong commitments to diversity and equality of opportunity, and welcome applications from candidates irrespective of their background, gender, race, sexual orientation, religion, or age, providing they meet the required criteria. All disabled candidates who satisfy the minimum criteria for the role will be guaranteed an interview under the Disability Confident Scheme. To ensure everyone has an equal chance, we’re always willing to make reasonable adjustments to the recruitment process. If you would like to discuss, please contact us. #J-18808-Ljbffr
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Location:
Birmingham, England, United Kingdom
Job Type:
PartTime

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