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 a 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.

Backed by top investors such as Accel, Insight Partners & Naver Corp we bring our total valuation to 806 million EUR and are embarking on our international journey with the aim to become the world´s best unique goods trading platform.

The Challenge
- As a Data Engineer, you will partner and collaborate with Data Analysts, Data Scientists and Engineers to make high-impact decisions based on data. Your work will influence the future of Wallapop in many ways.
- Every single day, hundreds of thousands of products are uploaded to Wallapop, millions of searches are generated, and millions of users trade goods and services on our platform. You will allow us to find the best insights into our business by providing fast and smooth access to data.
- If you love processing massive datasets, building robust and scalable data platforms, and getting your hands dirty by writing complex queries and data pipelines, Wallapop is your place to go.


What You Will Do
- Work with a team of talented Data Analysts, Data Scientists and Engineers to provide the best possible data platform.
- Support day-to-day issues that may arise unexpectedly.
- Develop and maintain data models, warehouses, and lakes according to industry best practices.
- Optimize data infrastructure for concurrency, query performance, and storage efficiency.
- Implement high-quality, scalable data pipelines to integrate and provide access to diverse data sources.
- Develop and maintain data streaming/real-time solutions.
- Ensure thorough documentation and quality in both code and implementation.
- Drive testing, optimization, and tooling to enhance data quality.
- Elevate software development standards across data projects, including CI/CD, testing, code reviews, and cloud development environments.
- End-to-end monitoring and alerting, from infrastructure to business metrics.
- End-to-end data lineage and cataloging.
- Data warehouse transformation layer with dbt.
- Data lake standardization.
- Increase elasticity of data infrastructure, primarily the data warehouse.

What We´re Looking For
- Experience in data warehousing and data lake design patterns.
- Experience in both batch, streaming/real-time solutions.
- Advanced proficiency in distributed systems, database design, and big data technologies such as Spark, Beam, Flink, or Kafka.
- Proven experience in building and maintaining large-scale data warehouses and ensuring data quality at scale.
- Expertise in data modeling and designing highly scalable and efficient data pipelines.
- Good SQL and Python (preferably) programming skills.
- Knowledge of BI tools such as Looker or Tableau for data visualization and reporting.
- Proficiency in DevOps practices, including CI/CD, testing, and deployment automation.
- Knowledge of cloud-based data engineering solutions, such as AWS, GCP, or Azure.
- Strong analytical and problem-solving skills, with the ability to identify and address complex data issues.
- Excellent communication skills to lead and collaborate with cross-functional teams and stakeholders.
- Ability to recommend platform improvements for the short, medium, and long term.
- Ability to work independently with minimal supervision, taking ownership of complex projects.

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:
- Competitive phantom shares package for all employees
- Generous individual learning budget of 2k per year
- Group and individual English, Catalan & Spanish lessons as part of our working day
- Private Health Insurance with Alan
- Flexible working hours + short 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
- Workiversary 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)