Full Stack Developer | Freelance | Remote | Catalonia I am currently working with a respected digital marketing agency who are looking to bring in an experienced Full Stack Developer to lead the department on a freelance basis to help improve their processes and deliver future projects. Full Stack Developer. Working Model: Remote. Contract Length: 6 Month contract with extension possibilities. Strong expertise in Python (non-negotiable) and Node.Js (must) Proficiency with React for front-end development Strong background in data management (data lakes, warehouses, streaming analytics) Familiarity with cloud environments, ideally Google Cloud Platform (Big Data, ML fundamentals, resilient streaming systems) Ability to take projects end-to-end with focus on back-end development Solid understanding of modern software engineering practices (scalability, resiliency, clean code) Deliver end-to-end development of small to medium-scale projects Lead the modernization of data lakes and data warehouses on Google Cloud Platform Design, implement, and optimize back-end services and APIs (Python, Node.Js) Develop and maintain React-based front-end components Implement and manage CI/CD pipelines to ensure reliable deployments Full working proficiency in English ~