> Markdown version of [/jobs/ext/1609958-data-engineer](https://www.wearedevelopers.com/jobs/ext/1609958-data-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Data Engineer - **Company:** Cataluña - **Location:** Barcelona, Spain (Remote available) - **Salary:** €44,400.0 - **Contract:** Permanent contract - **Skills:** Agile Methodology, Artificial Intelligence, Airflow, Big Data, Customer Data Management, Data Architecture, Data Systems, Python (Programming Language), Machine Learning, Marketing Information Systems, Microsoft SQL Server, MongoDB, DataOps, SQL Databases, Transaction Data, Cassandra, Non-relational Database, Data Pipelines, Databricks - **Published:** July 21, 2026 - **Apply:** https://www.jobleads.com/es/job/e0e624916b846bb786bc030da2e9a123a ## About the Role * Strong experience as a Data Engineer with large-scale datasets. * Advanced Python and SQL. * Experience with Databricks and Airflow * 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., * 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. ## Description * 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. ## Related Videos - [From Messy Queries to Scalable Systems - How Data Engineering actually works](https://www.wearedevelopers.com/videos/100203-from-messy-queries-to-scalable-systems-how-data-engineering-actually-works) - [40 Minutes to Build a Serverless COVID-19 REST and GraphQL APIs](https://www.wearedevelopers.com/videos/208-40-minutes-to-build-a-serverless-covid-19-rest-and-graphql-apis) - [Data Science in Retail](https://www.wearedevelopers.com/videos/586-data-science-in-retail) - [Enjoying SQL data pipelines with dbt](https://www.wearedevelopers.com/videos/823-enjoying-sql-data-pipelines-with-dbt) - [AI Model Management Life Circles: ML Ops For Generative AI Models From Research to Deployment](https://www.wearedevelopers.com/videos/1152-ai-model-management-life-circles-ml-ops-for-generative-ai-models-from-research-to-deployment) - [NoSQL Data Modeling for Front-end Developers](https://www.wearedevelopers.com/videos/297-nosql-data-modeling-for-front-end-developers) ## Related Articles - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Top Big Data Technologies That You Need to Know](https://www.wearedevelopers.com/magazine/108-top-big-data-technologies-that-you-need-to-know) - [Coffee with Developers - Maria Apazoglou - Making AI understandable for all in production](https://www.wearedevelopers.com/magazine/475-coffee-with-developers-maria-apazoglou-making-ai-understandable-for-all-in-production) - [Making Data Warehouses Fast: A Developer’s Story](https://www.wearedevelopers.com/magazine/107-making-data-warehouses-fast-a-developer-s-story) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)