Senior Penetration Tester - Remote Security Leader & Mentor

ThreatSpike Ltd. is seeking a Senior Penetration Tester to lead web, internal and external assessments, using OWASP and MITRE ATT&CK frameworks. The role emphasizes mentorship, client communication, and hands-on testing across platforms.

Remote-first role across the United Kingdom, United States, Singapore and United Arab Emirates, with optional hybrid work in London. A strong foundation in systems, networks and programming is required, plus the ability to guide junior testers and engage with