> Markdown version of [/jobs/ext/2287551-python-data-engineer](https://www.wearedevelopers.com/jobs/ext/2287551-python-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). --- # Python Data Engineer - **Company:** Epam Systems - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Amazon S3, Databases, Data Governance, Data Transformation, Data Security, Python (Programming Language), Oracle Databases, SQL Databases, Data Processing, Apache Spark, Pyspark, Tools for Reporting, Dataiku, Data Pipelines - **Published:** August 29, 2026 - **Apply:** https://www.jobleads.com/es/job/e28aec6dfbdeeebe588b2f25db85cb72b ## About the Role * Proven experience in Python for complex data transformation, API integration and Dataiku automation * Strong expertise with Dataiku DSS for data processing and integration * Hands-on experience with distributed processing engines such as Spark/PySpark or Trino * Solid understanding of S3-compatible object storage and integration practices * Familiarity with Oracle database and SQL for advanced queries * Knowledge of data security, access control and data governance frameworks * Ability to design and deliver resilient, maintainable data pipelines in financial services or similarly regulated environments * Strong problem-solving abilities with attention to detail and quality * Excellent communication skills to collaborate across technical and business teams * Fluent in English, written and spoken, * Experience in tax reporting or financial data domains * Exposure to EasyTax or similar tax calculation engines * Familiarity with core banking transformation programs and legacy migration strategies * Knowledge of regulatory compliance requirements related to data processing and storage ## Description * Design and develop a tax data provider application leveraging Dataiku DSS, Python and S3-based storage * Implement data pipelines for ingestion, transformation, normalization and validation of client tax-relevant data * Integrate data from multiple banking systems in line with architectural standards and migration objectives * Enable secure data access and enforce strict access control mechanisms * Supply tax-relevant data to downstream consumers including tax calculation engines (e.g., EasyTax), reporting tools and analytics platforms * Ensure continuity of historical reporting by retaining a read-only legacy tax database while enabling seamless migration to new structures * Optimize performance through efficient use of processing engines like PySpark and Trino * Collaborate with stakeholders to align technical solutions with regulatory and compliance requirements * Maintain clear documentation to support sustainability and audit-readiness ## Related Videos - [PySpark - Combining Machine Learning & Big Data](https://www.wearedevelopers.com/videos/44-pyspark-combining-machine-learning-big-data) - [Alibaba Big Data and Machine Learning Technology](https://www.wearedevelopers.com/videos/37-alibaba-big-data-and-machine-learning-technology) - [WeAreDevelopers LIVE - CSS is DOOMed](https://www.wearedevelopers.com/videos/1838-wearedevelopers-live-css-is-doomed) - [Data Science in Retail](https://www.wearedevelopers.com/videos/586-data-science-in-retail) - [Empowering Retail Through Applied Machine Learning](https://www.wearedevelopers.com/videos/976-empowering-retail-through-applied-machine-learning) - [Enjoying SQL data pipelines with dbt](https://www.wearedevelopers.com/videos/823-enjoying-sql-data-pipelines-with-dbt) ## Related Articles - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Data Analyst Salary in the UK](https://www.wearedevelopers.com/magazine/278-data-analyst-salary-in-the-uk) - [Making Data Warehouses Fast: A Developer’s Story](https://www.wearedevelopers.com/magazine/107-making-data-warehouses-fast-a-developer-s-story) - [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) - [The 13 Best Python Libraries for Developers in 2025](https://www.wearedevelopers.com/magazine/371-the-13-best-python-libraries-for-developers-in-2025) - [Top Big Data Technologies That You Need to Know](https://www.wearedevelopers.com/magazine/108-top-big-data-technologies-that-you-need-to-know)