Senior Data Engineer (Python & Databricks)

Nasze wymagania: Very strong Python and PySpark skills; proven experience with Databricks and Delta Lake Experience working in large, shared codebases (beyond notebooks) Strong SQL skills, especially reading and understanding complex logic Solid object-oriented programming experience, clean code principles Strong data modelling background (transactional and analytical) Experience in redesigning models during platform migrations Familiarity with layered data architectures (Bronze / Silver / Gold) Very good English skills Mile widziane: Azure Data Factory (orchestration) Azure DevOps, Git, CI/CD pipelines Power BI or analytics tooling Infrastructure / DevOps knowledge (not mandatory) O projekcie: In Cyclad we work with top international IT companies in order to boost their potential in delivering outstanding, cutting-edge technologies that shape the world of the future. We are seeking an experienced Senior Data Engineer with Python and Databricks. This role supports a large-scale transformation from SQL Server–based systems to a Databricks / Delta Lake platform. The focus is on enterprise-grade data engineering and software development, not analytics or reporting. The project is SQL2Databricks migration, it involves 3500-4000 SQL DBs (2TB), replicating data in different shapes/ schemas to Databricks. Type of project: IT Services Office location: Poland Work model: Remote from Poland Budget: 140 - 160 PLN net/ h - b2b Project length: till the end of 2026, possible to extend it Only candidates with citizenship in the European Union and residence in Poland Start date: ASAP Zakres obowiązków: Support a large-scale transformation from SQL Server–based systems to a Databricks / Delta Lake platform Transform complex, business-critical SQL logic (stored procedures) into clean, maintainable, and scalable Python / PySpark code Redesign and implement this logic in Python / PySpark within Databricks Contribute to a large, long-running data engineering codebase used by multiple teams Develop production-grade transformation code (packages, modules, reusable components) Design and evolve data models within a Medallion Architecture (Bronze / Silver / Gold) across multiple data layers Ensure software engineering quality, reusability, and long-term maintainability Apply software engineering best practices (clean code, OOP, modularization, refactoring) Work with very large data volumes and highly parallel, event-driven transformations Actively participate in code reviews and technical design discussions Support orchestration workflows (e.g., Azure Data Factory) Oferujemy: Remote working model Full-time job agreement based on b2b and employment contract Private medical care with dental care (covering 70% of costs) + rehabilitation package. Family package option possible Multisport card (also for an accompanying person) Life insurance