Job Application for Staff Data Scientist, Experimentation at Wallapop

Open

Senior Analytics Engineer

Location
Barcelona
Posted
Jul 16, 2026
Last seen
Aug 7, 2026

About the role

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 🧩

As a Senior Analytics Engineer at Wallapop, your challenge will be to play a leadership role in designing, developing, and maintaining a complete data infrastructure and make it easily accessible to the entire domain team looking for synergies cross Wallapop to amplify the impact of the data.

What You Will Do 👇

  • Lead the design and implementation of data infrastructure, including integrating and consolidating data from multiple sources for advanced analytics.
  • Evaluate and select external analytics tools, platforms, and technologies to support advanced analytics capabilities.
  • Create visually compelling and interactive dashboards and reports to provide data-driven insights to stakeholders.
  • Collaborate with cross-functional teams to identify their data needs and drive scalable data-driven solutions.
  • Provide technical guidance, mentorship, and leadership to junior team members.
  • Document analytics processes and establish clear practices for analytics tools to ensure long-term team scalability and easy onboarding.

What We’re Looking For 🔎

  • Proficiency in Python and SQL, combined with a solid understanding of big data technologies.
  • Strong coding skills and the ability to write maintainable, performant code.
  • Proven expertise with ETL processes, data integration, and building reliable data pipelines.
  • Strong knowledge of cloud-based environments, ideally AWS.
  • Experience developing interactive dashboards and data insights using Business Intelligence tools (such as Looker or Tableau).
  • Advanced knowledge of data analytics concepts, techniques, and methodologies.
  • Strong analytical and problem-solving skills, with the ability to identify and address complex data issues.
  • Excellent communication and collaboration skills to lead and work effectively with cross functional teams and stakeholders.
  • Ability to take ownership of projects from start to finish, manage timelines effectively, and deliver high-quality work.
  • Demonstrated leadership skills and ability to provide technical guidance and mentorship.
  • Experience with project management, including managing timelines, resources, and delivering high-quality work within deadlines

What Would Be A Plus 🚀

  • Working with non-technical senior leadership
  • Automation and governance using AI tooling

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