Cyber Security Engineer

Barcelona, Catalonia, Spain • Posted June 03, 2026

Job Type: Full-time
Location: Barcelona, Catalonia
Posted: June 03, 2026
Category: Computer Occupations
Application Deadline: July 13, 2026

Role Description

Smadex is a leading advertising technology company founded in Barcelona in 2010 and sold to American-based and stock-listed Entravision in 2018 (NYSE::EVC).


We are one of the top mobile ad-tech companies in the world and the largest Demand Side Platform (DSP) based in Europe, with our revenues over +$100M and consistently growing +40% YoY over the past years. And with an incredible 100% growth last year.


We are looking for a proactive Cyber Security Engineer to join our team and safeguard the integrity of our high-traffic programmatic infrastructure.


In this role, you will be the guardian of our digital ecosystem, bridging the gap between cutting-edge security engineering and agile DevOps practices.  The Role Architect and deploy scalable, cloud-native security protocols (e.g., WAF, Security Groups, GuardDuty, CSPM) to safeguard our high-traffic, API driven  infrastructure.


Design and maintain automated threat detection rules an...

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