Lead Security Engineer

World of Books Group

Permanent, Full-time

This is a role for someone who wants to shape rather than maintain.

The Opportunity

World of Books Group is a certified B Corp and one of the world's largest sellers of pre-loved books, operating across the UK, US, and Hungary. Our technology estate spans cloud platforms, e-commerce marketplaces, in-house engineering, and a broad SaaS footprint — and we're looking for the person who will make it safer.

As Lead Security Engineer, you'll design, build, and operate the controls that underpin our cyber resilience programme. You'll report directly to the Group Information Security Manager and work with real autonomy — shaping the roadmap, choosing the tools, and driving the engineering work that moves our security maturity forward.

This is a genuinely hands‑on role. You'll treat AI and automation as force multipliers, influen...