Data Engineer - Marketing & Communication Domain

Data Engineer - Marketing & Communication Domain Aplicar 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). 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). Nice to have 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. Compensation & benefits Salary: €56,000 – €61,000 base Flexible benefits package (~€3,700 net/year) Private health insurance Remote work allowance (1-2 days office/week) Wellbeing benefits Departamento Data (Science/Engineering/Analyst) Puesto Data Engineer Ubicaciones Barcelona Estado remoto Híbrido Salario anual 56.000 € - 61.000 € Acerca de Q-Tech En Q-tech , vivimos y respiramos tecnología. Somos ese equipo que conecta a las mejores mentes del mundo IT con empresas que están listas para comerse el mercado. Llevamos años cazando talento tech, y nos gusta hacerlo de la manera más artesanal posible; nos gusta el trato cercano, real y auténtico. Amamos lo que hacemos y creemos que el talento no se busca, ¡se atrae! 🚀 Nos movemos como pez en el agua en la comunidad IT, siempre al tanto de lo último en tecnología, startups, y los movimientos del sector. Si eres un crack en lo que haces o una empresa buscando uno, ¡hablamos el mismo idioma! Fundada en 2000 Compañeros 20 Facturación 2M