Growth Manager (Marketing focus)

Seventh 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 commercial initiatives from the start. Take responsibility for a commercial initiative, from defining the approach to putting it into practice. You'll make decisions with local teams, lead implementation and be accountable for the results.
Learn directly from experienced business leaders. Work directly with marketplace executives and experienced operators as you help shape decisions and carry them through. Their guidance and regular feedback will help you develop the judgement and practical skills to run a business.
Grow towards business leadership. We want to develop future leaders for our marketplaces. Strong performance can lead to rapid progression, with opportunities to run a larger commercial area, lead a team or take on a leadership role within a marketplace.
Put AI to work at marketplace scale. Use AI to create new customer experiences, improve growth campaigns and redesign commercial workflows. You'll have room to test ideas in live marketplaces, measure their impact and scale what works.
Build repeatable capabilities. Turn what works in our starting markets into playbooks and shared capabilities that other marketplaces can use. You'll work with teams across countries to adapt and implement them, extending the impact of your work across the group.
Help build Seventh Wave from the start. Help shape the team and ways of working as we build Seventh Wave from the ground up. You'll have the autonomy to put your ideas into practice, with the backing of an established group.

About you

• Clear thinking. You use evidence to form a view on a commercial problem and identify the assumptions worth testing. You can make a practical decision even when the data is incomplete.
• Marketing instincts. You notice what earns people's attention and can explain why a campaign or proposition works. You bring original ideas and the judgement to connect
• them to a customer need.
• Drive and ownership. You set yourself demanding goals, take initiative and follow through when the work becomes difficult. You take responsibility for the result and find ways to keep moving.
• Curiosity and learning. You pick up unfamiliar topics quickly, seek out feedback and experiment with AI and new tools.
• Teamwork and communication. You communicate fluently in English and turn ideas into clear briefs for colleagues and partners. You help others succeed, give candid feedback and welcome challenges to your thinking.
• Relevant experience. You bring around 1–2 years in strategy consulting, ideally at McKinsey, BCG or Bain, or in a startup or scale-up. Experience in both environments, including through internships, is a plus.

Bring strong marketing instincts and the ambition to develop them across the full go-to-market function. You'll build your expertise through real campaigns and increasingly broad challenges, working alongside local teams and specialists.

• Shape the growth plan. Work with the commercial transformation lead and local teams to identify the audiences, categories and regions where marketing can make the biggest difference, and focus activity and spend accordingly.
• Create and launch bold campaigns. Develop distinctive messages and creative ideas, then work with agencies and local teams to test and launch them across digital and physical channels.
• Measure impact and steer investment. Work with data specialists on attribution and experiments that show which activities generate additional customers or revenue. Use the findings to improve campaigns and guide budgets.
• Reinvent marketing with AI. Test AI across research, creative production and campaign execution, and help select the tools and workflows that make the marketing team more effective.
• Grow across the go-to-market function. Build your expertise across paid marketing, out-of-home campaigns, CRM, SEO and sales as your remit grows, working with specialists to improve targeting, measurement and execution.
• Scale successful approaches. Turn effective campaigns, measurement methods and AI workflows into tools and playbooks that other marketplace teams can adopt.

Compensation. A highly competitive all-in salary package, with no performance-based bonuses.
Location. We work in person at our Barcelona office, with occasional travel to our marketplaces depending on your role and scope.
Development. A personal development budget and hands-on experience across different marketplaces and areas of the business.
Environment. An international team with high standards, substantial autonomy and real responsibility for what we deliver.

Our application process
We look for evidence of clear thinking, initiative and follow-through. Our case studies reflect the practical decisions and commercial challenges you would work on here. We'll explore how you approach unfamiliar problems, make decisions and turn them into action.
1. Apply. Send us a one-page CV and a one-page cover letter. Tell us why you want to join Seventh Wave and what you would bring to the team.
2. Application review. Our hiring committee reviews every application personally and will be in touch within two weeks.
3. Shortlist and next steps. If we shortlist your application, we'll share the interview format, who you'll meet and any preparation required.
4. Interview day in Barcelona. Spend a day with us in person, working through practical cases and discussing your experience, ambitions and how we would work together. You'll have time with your prospective manager and colleagues to ask questions and decide whether Seventh Wave is right for you. We aim to make and communicate our hiring decision that day.