Descripción

From Q-tech, we are collaborating with a large European technology company, part of a leading international retail and distribution group, that is looking for a Data Engineer to join a highly innovative squad within the Marketing & Communication domain.

You'll work on one of the company's most strategic products: one of the largest customer loyalty apps in Europe, with over 130 million users, managing massive-scale customer and transactional data to power advanced segmentation, personalized campaigns and data-driven decisions across countries.

The role is a strong fit for engineers who enjoy scalability challenges and large-volume data architecture, with growing exposure to the company's Data Science and AI initiatives — the product already uses Generative AI for natural-language customer segmentation, with more AI-driven analytics planned.

This hire expands the team, adds delivery capacity, and enables further AI/Data Science innovation.

Responsibilities
- Design, develop and maintain scalable batch and real-time data pipelines.




- Build and optimize data solutions for very large volumes of customer and transaction data.
- Develop and maintain the Marketing Data Layer used by marketers across countries.
- Transform analytical data into operational datasets for segmentation and campaign execution.
- Ensure data quality, performance, governance and reliability.
- Collaborate with Data Engineers, Software Engineers, Product Owners and business stakeholders; support other squads as needed.
- Contribute to AI-powered marketing products, advanced analytics, and ML solutions where relevant.
- Identify actionable insights from customer behavior and purchasing patterns.

Must have
- Strong experience as a Data Engineer with large-scale datasets.
- Advanced Python and SQL.
- Experience with Databricks and Airflow
- Big Data frameworks: Spark, Kafka, Kubernetes, Hive.
- Relational (e.g., SQL Server) and non-relational databases (e.g., MongoDB, ELK, Cassandra).

📌 Data Engineer – Marketing (Barcelona)
🏢 Q-tech Recruitment Consultants
📍 Barcelona