Senior Penetration Tester – (UK only - Must be eligible for Security Clearance) Location: UK (Leeds, Bristol, London or Remote) Salary - £40k - £59k Step up your game in cybersecurity. We’re looking for an experienced Senior Penetration Tester who thrives on pushing boundaries, thinks like an attacker, and delivers like a pro. You’ll be joining a tight-knit team of passionate ethical hackers tackling high-impact, real-world cyber threats across both government and commercial landscapes. What You’ll Be Doing: Lead and deliver hands-on penetration tests Mentor junior testers and review technical outputs Collaborate with clients and provide expert guidance Feed into proposals and help shape strategic direction Continuously grow your technical and consulting skills What You’ll Need: ✔ NCSC CHECK Team Member status ✔ Solid UK penetration testing experience (ideally across varied environments) ✔ Technical depth in networks, systems, and application testing ✔ Strong communication and reporting skills ✔ A hacker mindset and the drive to stay ahead of evolving threats ✔ Clear and demonstrable understanding of penetration testing and red-teaming including NCSC and CREST accredited schemes Why This Role? Tackle engagements you won’t find elsewhere — including national defence and critical infrastructure Join a collaborative, friendly team that supports your development Flexibility to work remotely or from offices in Leeds, London or Bristol Grow into leadership and shape how testing is delivered to top-tier clients No degree? No problem. If you’ve got the skills, passion, and mindset, we want to hear from you. Apply now or reach out to r.kelly@ltharper.com and take the next step in your cyber career.