> Markdown version of [/jobs/ext/4678016-backend-java-python-developer](https://www.wearedevelopers.com/jobs/ext/4678016-backend-java-python-developer). 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). --- # Backend Java/Python Developer - **Company:** Innovation Talan - **Location:** Spain - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Java (Programming Language), Agile Methodology, Artificial Intelligence, Amazon Web Services, Applications Architecture, Application Services, Confluence, JIRA, Big Data, Cloud Computing, Cyber Security, Data Validation, Data Integration, Extract Transform Load (ETL), Data Systems, Memory Management, IBM Maximo, Python (Programming Language), Microsoft Software, Oracle (Applications), Performance Tuning, Scrum Methodology, Standard Sql, Salesforce.Com, SAP (Applications), Software Engineering, SQL Databases, Data Processing, Generative AI, Backend, Git, Data Lakes, Integration Tests, Restful APIs, Software Version Control, Microservices, Control M - **Published:** November 12, 2026 - **Apply:** https://www.adzuna.es/details/5961813127 ## About the Role Experience: +2 years of experience in software development, preferably in data-intensive or analytical environments. MANDATORY SKILLS: * Java * Python * SQL * REST APIs / Microservices * Data processing & transformation * Software design and development * Testing & debugging * Performance optimization * Git / version control * C1 English Level DESIRABLE: * Atoti / ActiveViam * Big Data / DataLake * Cloud * Control-M * Jira / Confluence ## Description * Data & Technologies: We design and implement large-scale, end-to-end architecture and data solutions, including data integration, data science, visualization, Big Data, AI, and Generative AI. * Cloud & Application Services: We integrate leading platforms such as SAP, Salesforce, Oracle, Microsoft, AWS, and IBM Maximo, helping clients transition to the cloud and improve operational efficiency. * Management & Innovation Consulting: We lead business and digital transformation initiatives through project and change management best practices (PM, PMO, Agile, Scrum, Product Ownership), and support domains such as Supply Chain, Cybersecurity, and ESG/Low-Carbon strategies. We work with major global clients across diverse sectors, including Transport & Logistics, Financial Services, Energy & Utilities, Retail, and Media & Telecommunications., * Design, develop and maintain backend and data-processing components. * Develop applications and processes using Java, Python and SQL. * Implement business and calculation logic according to functional requirements. * Develop and integrate REST APIs and microservices. * Develop data loading, processing and transformation capabilities. * Develop and maintain analytical components in Atoti / ActiveViam when required. * Implement measures, calculations and analytical capabilities within Atoti. * Analyze and optimize performance, memory usage and scalability. * Perform data validation and reconciliation across different components and systems. * Troubleshoot technical, data and performance issues. * Implement unit and integration tests. * Support testing, certification, deployment and production releases. * Maintain technical documentation and development best practices.