Data Scientist -Search
Wallapop is seeking a Data Scientist focused on Search to improve marketplace dynamics through end-to-end ML solutions. This role involves collecting and analyzing data, developing and deploying machine learning models for personalized recommendations and search, and collaborating with cross-functional product teams to drive initiatives from ideation to deployment and iteration.
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.
Our platform generates vast amounts of data. With a mature infrastructure already in place and a growing team, the opportunities to make a tangible impact are endless. As a Data Scientist, you will improve marketplace dynamics by working on end-to-end ML solutions—from data gathering and prototyping to deployment and iteration.
As a Data Scientist at Wallapop, you will be working on Data Science and Machine Learning initiatives aimed at improving the whole marketplace dynamics. This will include topics such as improving models that power users' main interaction point: Search. You will also look into various models that will help users discover new items through ranked Recommendations, Similar Items, and more.
You will work closely with other Data Scientists, Product Managers, Engineers, UX Researchers, and Analysts to understand the product requirements and explore possible data and ML solutions. You will own the whole product lifecycle, from gathering the data needed to prototyping, building, evaluating, and iterating end-to-end solutions, all within Wallapop’s Data and ML Platforms.
Additionally, you will have the opportunity to work on internal research projects, exploring new technologies and building PoCs that could ultimately become data products or insights, and be valuable for Wallapop.
Posted June 2, 2026