Senior Quantitative Researcher

Wallapop is a Barcelona based scale-up driven by the purpose to empower people to embrace a more conscious and human way of consumption. We believe in a world where collaborative economy is mainstream. This is what drives us. 💫 Wallapop operates in Spain, Italy and Portugal, offering a catalogue of several hundreds of millions of products and services. Powered by technical innovation and continuous improvement, we bring together the scale & trust of classifieds with the marketplace’s convenience & reach. 🌱 Our mission is to enable a connected trade ecosystem, making 2nd-hand the norm through smart use of technology. The Challenge 🧩 At Wallapop, we’ve built a strong foundation of qualitative understanding. Through continuous discovery, user feedback and close collaboration with teams, we’ve developed a rich view of how people experience our product and why they behave the way they do. What we need now is to complement that foundation with stronger quantitative ownership: making user understanding measurable, scalable and consistently actionable across the company. As our Senior Quantitative Researcher, you will own quantitative research at Wallapop. Your mission will be to build the frameworks, governance and measurement systems that help us move from fragmented signals and intuition-led decisions to a more robust, shared and evidence-based understanding of user experience. This role is not only about running quantitative studies. It is about shaping how the company uses quantitative evidence to make better decisions. You will define how we measure perception, satisfaction, trust and other key experience drivers, improve how we quantify the prevalence, importance and severity of user problems, and connect inputs such as surveys, qualitative research, user reviews, customer support feedback and behavioral data into a more coherent decision-making system. You will work closely with Product Analytics, Data Science, Product, Design, UX Leadership, and our Discovery & Insights research function, acting as a bridge between data and human behavior. Your work will reduce uncertainty in product bets, strengthen the link between user perception and business performance, and help Wallapop make smarter, more confident decisions at scale. What You Will Do 👇 Own and evolve quantitative research at Wallapop, defining how it supports product, design and business decisions across the company. Define, implement and evolve frameworks to measure user experience, perception, satisfaction, trust and other key user-related signals across the company. Own survey governance, setting standards and guidance for when and how surveys should be used, how results should be interpreted, and how survey-based evidence can be made reliable and decision-useful. Build scalable approaches to quantify the prevalence, importance and severity of user problems, helping teams understand not only what users experience, but how important those issues are, who they affect, and where to act first. Design, execute and analyze quantitative research initiatives, including surveys, experiments and other measurement approaches, to support both exploratory and evaluative product work. Partner with Product Analytics and Data Science to connect user perception and attitudinal signals with behavioral and business data, creating a more holistic understanding of product performance. Collaborate closely with the Discovery & Insights research function to translate rich qualitative signals into measurable hypotheses, validation plans and tracking mechanisms. Standardize and improve how Wallapop measures and monitors experience quality across products and journeys, including simplifying and unifying satisfaction and feedback frameworks where needed. Help integrate and make sense of multiple feedback sources, such as user research, customer support inputs, reviews and other experience signals, turning them into structured and actionable quantitative evidence. Lead end-to-end research...