Security Testing Specialist – Dive Deep. Think Differently. Build Secure Systems.
You’re someone who can’t help but ask “What’s really going on under here?”
Whether it’s a telecoms protocol, a complex system, or a bespoke piece of hardware, you’re driven by curiosity — and motivated by making real world technology safer.
Join a collaborative, inclusive team where your ideas matter, your voice is heard, and your work has genuine impact. You’ll have the freedom to explore, experiment, and grow, while helping shape the security of next generation networks.
What You’ll Be Doing
You’ll play a hands-on role in security testing across hardware, software, and telecoms specific technologies.
Your work will include:
- Conducting security testing on hardware and software to uncover vulnerabilities in complex systems.
- Applying positive and negative testing techniques to stress-test network functions and protocols.
- Scripting and automating assessments to improve efficiency and repeatability. Freeing up your time to do interesting work.
- Investigating, analysing, and clearly communicating technical findings and risks.
- Contributing to high quality, actionable technical reports.
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
You’ll thrive here if you:
- Have a background in infrastructure, networking, or software development and hands on penetration testing experience (this is not an entry level role).
- Enjoy deep technical problem solving and working in complex environments.
- Bring new ideas, collaborate well, and support others.
- Are passionate about security testing and committed to continuous learning.
What You’ll Learn
- You’ll bring strong experience — and we’ll help you go further.
- Whether you already know telecoms protocols such as Diameter, HTTP/2, SCTP, and NGAP, or you show clear aptitude to learn them, we’ll invest in your development.
- You’ll have access to leading training platforms, including:
- Offensive Security Learn Unlimited (with exam attempts included)
- Hack The Box
- PentesterLab
- Additional telecoms specific resources and bespoke training
If this sounds like you, we’d love to hear from you. Let’s build something secure together.
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 hold an SC clearance with no restrictions. You are welcome to apply without already holding SC clearance; however, you will not be able to start in post until the clearance has been successfully granted.
