L3 cybersecurity specialist at Global Relay in London who deploys, operates and improves security tooling (SIEM, WAF, EDR, HSM, threat intel), acts as the escalation point for incidents, ensures compliance with NIST/ISO 27001/SOC 2/GDPR, and automates tasks with Python/PowerShell. Requires 5-7+ years of hands-on infosec and infrastructure experience.