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 projects, from framing the problem and choosing the right methodology to synthesizing findings and influencing decisions with clear recommendations.
• Support teams in identifying the right research questions, selecting the right methods and using quantitative evidence effectively in product and design decision-making.
• Communicate insights in a clear, credible and actionable way to different audiences, from product teams to senior stakeholders, adapting the level of depth and complexity when needed.
• Contribute to the development of research practices, standards and ways of working that improve the quality, consistency and scalability of research at Wallapop.
• Mentor and guide peers in the use of quantitative methods, helping strengthen a culture where user understanding is measurable, trustworthy and decision-ready.

What We're Looking For 🔎

• You have 6+ years of experience in quantitative user research or similar roles in digital product environments, including clear experience building or evolving measurement frameworks, leading complex cross-functional research initiatives, and influencing product or business decisions through evidence.
• You have strong expertise in survey design, quantitative research methods and statistical analysis, and know how to apply them pragmatically to product and business questions, ensuring survey-based insights are robust, interpretable and useful for decision-making.
• You are proficient in tools such as R or Python, and comfortable working with user-level data to uncover patterns, generate insight and support decision-making.
• You have experience building or evolving measurement frameworks, trackers or recurring research systems, not only running one-off studies.
• You have experience owning or shaping survey governance, helping ensure quantitative evidence is generated and used with rigor and consistency.
• You have experience quantifying the prevalence, importance and severity of user problems, helping distinguish between isolated feedback and meaningful patterns that should influence prioritization.
• You are able to connect and synthesize different types of evidence, including attitudinal, qualitative, behavioral and operational signals, to build a more complete understanding of the user experience.
• You are confident in translating ambiguous business or product questions into strong research approaches, and turning findings into actionable recommendations.
• You know how to balance methodological rigor with pragmatism, and can adapt your approach depending on the context, the level of uncertainty and the decision at stake.
• You are an excellent communicator who can explain complex findings clearly and persuasively to cross-functional partners and senior stakeholders.
• You enjoy working collaboratively across disciplines and are comfortable partnering with Product, Design, Data Science, Analytics and Research to drive impact.
• You are motivated by building systems, raising the quality of decision-making, and helping an organization become more evidence-based over time.

What Would Be A Plus 🚀

• Experience managing satisfaction programs or other recurring measurement systems.
• Experience with sampling, weighting and other advanced survey methodology techniques.
• Experience using tools such as Looker, Amplitude or similar analytics and visualization platforms.
• Experience in marketplace, e-commerce or other trust-sensitive digital environments.
• Experience working across multiple markets, audiences or cultural contexts.
• Experience mentoring researchers or helping teams adopt quantitative methods and evidence-based practices.

Do note that all our jobs are 📍 Barcelona based. We follow a hybrid model where flexibility rules. We commit to a minimum of 6 days per month in the office. Each team self-organizes to decide on cadence and in-person/remote rituals.

Wallapop is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees as we want Wallapop to be a place for everyone.

Additionally to the opportunity to contribute to an agile product set up and work together towards achieving our meaningful mission, we offer the following 🍭 Perks & Benefits:

• Generous individual learning budget of 2k per year
• Free office meals, lunch selection from different providers
• Group and individual English, Catalan & Spanish lessons as part of our working day
• 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 plan for free shipping, bumps & home-pick-up on our services
• Work anniversary Gifts and Birthday Surprises
• Contribution towards your WIFI in your monthly payroll
• One-off payment based on compensation package to go towards setting up your home office
• Relocation package (monetary support and legal advice) and visa sponsorship, if applicable
• 26 holidays per year
• TOP hardware of your choice (latest Apple or Windows)

What does the hiring process for this position look like? 👀**Please, note that all interviews take place remotely over hangouts.**

Intro Call - Run by Talent Acquisition, focused on providing more information about the role and the company, as well as understanding your experience, motivation and expectations. This usually takes 45-60 minutes.

Case Study - We will ask you to submit within 5 to 7 days a case study based on a past project that is representative of your work.

Expertise Interview - Led by the hiring team, this conversation is focused on challenging and pressure-testing your thinking in a given context. This usually takes 60-90 minutes.

Stakeholder Interview - Run by relevant stakeholders reflecting the reality of the context of the role, focused on your ability to collaborate and deliver in a cross-functional setup. This usually takes 60 minutes.

Culture Interview - Run by culture interviewers, focused on your alignment with Wallapop's purpose and business proposition. This usually takes 60 minutes.

Offer - Should you be the right candidate, your offer will be discussed over a call with Talent Acquisition and then confirmed in writing.