Principal Growth Product Manager

The role

You will lead the growth strategy for user acquisition and activation across app and web platforms. You will design and analyze experiments to optimize the user journey from registration to the first transaction.

What you will do

• Lead the growth strategy for user acquisition and activation across Wallapop’s app and web platforms.
• Design, run, and analyze experiments to improve engagement at every stage of the journey.
• Collaborate cross-functionally with engineering, design, data, and marketing.
• Partner with the Head of Acquisition to align marketing performance with in-product experiences.
• Leverage data and insights to identify and remove friction points in onboarding and flows.
• Define and monitor key metrics including activation rate, conversion rate, cost per activated user, and repeat transaction rate.
• Cultivate a culture of experimentation using A/B testing and cohort analysis.
• Communicate learnings and results across product, marketing, and leadership teams.

Required qualifications

• Extensive experience in Product Management, with a focus on growth, activation, or conversion optimization.
• Proven track record of driving measurable growth through data-informed experimentation and journey optimization.
• Strong analytical mindset with a comprehensive understanding of growth metrics and lifecycle flows.
• Experience working effectively within cross-functional teams of engineers, data scientists, designers, and marketers.
• Solid understanding of how organic and paid channels intersect with the product experience.
• Excellent storytelling skills to influence and align stakeholders.
• Familiarity with A/B testing tools and analytics platforms such as Amplitude, Mixpanel, or Looker.
• Genuine interest in marketplaces, user behavior, and sustainable consumption.

Nice to have

• Experience in marketplace or e-commerce environments, especially involving supply/demand dynamics.
• Technical background or a high degree of comfort collaborating closely with engineering teams on architectural trade-offs.
• Understanding of user segmentation, CRM automation, or retention marketing.

Benefits

• Generous individual learning budget of 2k per year
• Free office meals, lunch selection from different providers
• Group and individual English, Catalan & Spanish lessons
• Private Health Insurance with Alan
• Flexible working hours + intensive Fridays
• Flexible remuneration to deduct from gross salary (kindergarten/food/transport check)
• Gym & Wellness plan, including physiotherapist in the office
• Generous referral Program & Charity Donation
• Bonus for weddings & newborns
• Wallapop Renta (Tax income support)
• Monthly product advantages (Wallapop Club)
• Work anniversary Gifts and Birthday Surprises

Before you apply

• All interviews take place remotely over hangouts.
• Process includes an Intro Call, Expertise Interview, Case Study Submission, Case study Interview, Stakeholder Interview, and Culture Interview.

About the company

Wallapop is a Barcelona based scale-up that operates in Spain, Italy and Portugal. Its mission is to enable a connected trade ecosystem, making 2nd-hand the norm through smart use of technology.