Senior Security Engineer - Detection Engineering

Tesco UK • Welwyn Garden City • Hybrid • Full-Time • Working hours 36 • Apply by 31-Jul-2026

As a Senior Security Engineer in Tesco's Detection Engineering team, you will lead the technical design of security‑first infrastructure and deliver high‑impact engineering outcomes that protect a global retail ecosystem serving millions of customers. You will translate complex threat and risk signals into resilient, testable, and automated security capabilities across Tesco's technology landscape. This role blends deep engineering leadership with a customer‑first mindset: preventing disruption, safeguarding trust, and raising the bar on engineering quality across cyber defence. You will also mentor engineers and help shape an innovation agenda that strengthens Tesco's ability to detect and withstand sophisticated cyber threats.

What is in it for you

• Annual bonus scheme of up to 20% of base salary.
• Holiday starting at 25 days plus a personal day (...