Job Description

We welcome applications year-round for both shorter internships and gap-year internships.

About Seventh WaveSeventh Wave is part of Adevinta, one of the world’s leading online classifieds groups. We’re a small, exceptionally talented team at the frontier of AI deployment, pushing the boundaries of how classifieds businesses operate at scale. We build, shape, and run these businesses end-to-end, driven by an owner-founder mindset from day one. Joining us now means joining early and having a direct hand in shaping our growth journey.
Across Adevinta, our marketplaces reach more than 100 million users every month. Backed by an investor consortium including Blackstone, Permira and General Atlantic, the group brings together leading marketplaces such as mobile.de and Kleinanzeigen in Germany, leboncoin in France, Marktplaats in the Netherlands, Subito in Italy and Kijiji in Canada.

Why join us
We are building a small team of exceptional people early in their careers who want to build, take responsibility and grow with the business.





Own meaningful work from the start. Take responsibility for a defined assignment that contributes to a live commercial initiative. You'll work with a growth manager and local teams, with guidance as you put your ideas into practice.
Learn from experienced operators. Work alongside growth managers and marketplace teams, with opportunities to learn from experienced business leaders. Regular feedback will help you develop your commercial judgement and practical skills.
Build a foundation for your career. Learn how marketplace businesses grow by contributing to real projects. As you develop, you'll have opportunities to take on more responsibility within your assignments.
Put AI to work at marketplace scale. Help apply AI to customer experiences, growth campaigns and commercial workflows. You'll work with the team to test ideas, measure their impact and put useful approaches into practice.
Build repeatable capabilities. Help tu

📌 Growth Intern (Barcelona)
🏢 Adevinta
📍 Barcelona