Job Application for Staff Data Scientist, Experimentation at Wallapop
OpenSenior 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
Do note that all our jobs are <span style="color: rgba(0, 0, 0, 0.9); font-family: -apple-system, system-ui, 'system-ui', 'Segoe UI', Roboto, 'Helvetica Neue', 'Fira Sans', Ubuntu, Oxygen, 'Oxygen Sans', Cantarell, 'Droid Sans', 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Emoji', &
