Job Description

We are Adevinta, a leading online classifieds group and champion for sustainable commerce across Europe and beyond. With digital marketplaces across many countries, our portfolio spans consumer goods, mobility, real estate, holiday rentals and jobs. Together, our marketplaces attract more than 120 million users every month and over a million businesses.

Our locally loved marketplaces, including Marktplaats in the Netherlands, mobile.de in Germany, Kleinanzeigen in Germany and Spain, leboncoin in France and Subito in Italy, help everything and everyone find a new purpose by creating perfect matches – whether it’s a car, an apartment, a sofa or a new job.
Our brands are supported by integral Hubs in Barcelona and Amsterdam.

We are looking for an experienced 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, automated testing and repeatable deployments. Good understanding of AWS Cloud technologies, services, security capabilities and controls (SCPs, Security Groups, IAM). Famil

📌 Defensive Security Engineer (Barcelona)
🏢 Adevinta
📍 Barcelona