Описание: 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. Задачи:
* 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. Требования:
* 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).
* Experience designing robust, scalable data pipelines; knowledge of modern data architectures and data operations.
* Agile experience; strong problem-solving mindset and autonomy.
* Fluent English (minimum B2).
* Будет плюсом: ML tools: Scikit-Learn, Pandas, Spark ML, MLflow;
* Data Science workflow knowledge;
* experience with AI-related initiatives;
* Retail/customer-centric business experience;
* marketing analytics, segmentation or CRM data experience;
* Experience with customer/transaction/behavioral data at scale;
* Infrastructure deployment / DevOps knowledge;
* .
NET experience Условия:
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Salary:
€56,000 – €61,000 base
* Versátil benefits package (~€3,700 net/year)
* Private health insurance
* Remote work allowance (1-2 days office/week)
* Wellbeing benefits

📌 Data engineer for customer loyalty apps (Barcelona)
🏢 Q-Tech
📍 Barcelona