We’re Adevinta, a global leader in digital marketplaces. Our household name brands, including Kleinanzeigen and mobile.de in Germany, Marktplaats in the Netherlands and Leboncoin in France, reach hundreds of millions of people every month.

We’re all about matchmaking, and our sites help people find whatever they’re looking for in their local communities – whether it’s a car, an apartment, a sofa or a new job. Every connection made or item found makes a difference by creating a world where people share more and waste less.

Our brands are supported by general Tech Hubs in Barcelona, Amsterdam, Paris and Berlin. Their goal is to develop common global products and innovation platforms which all of our brands can use. This means using cutting edge technology to create highly scalable, customisable and secure products and components that free up development time and leverage our access to global data.

We are looking for an e xperienced defensive security engineer with hands‑on expertise in incident response and security operations in large enterprise environments.



Comfortable working autonomously across the full incident response lifecycle – preparation, detection, analysis, containment, eradication, recovery and learning – and able to lead or support response efforts under pressure. Should have solid experience operating and enhancing defensive security technologies including EDR, SIEM, DLP, NIDS and threat intelligence solutions. Must be able to develop and refine incident response policies, playbooks, escalation procedures and tabletop exercises, and contribute to post‑mortem analyses that feed back into detection and response improvements. Skilled at gathering, analysing and operationalising threat intelligence to strengthen detection and prevention.

Job Requirements

Must be aligned with a GitOps and defense‑as‑code approach: managing detection content, security configurations, playbooks and operational tooling as versioned code in Git, with peer reviews, automate

📌 Defensive Security Engineer (Barcelona)
🏢 Adevinta
📍 Barcelona