Summary: We are looking for a Data Warehouse Developer to create and develop data warehouses, design ETL/ELT processes, and optimize system performance. Highlights: 1. Work in a modern, international corporation 2. Opportunity to collaborate with experts from various fields 3. Participation in large-scale, innovative projects **Work location: Gdańsk** **Ref. no.: 02/DSH/EITE/2026** Publication end date: **19\.02\.2026** Your responsibilities: * Designing and developing data warehouses (DWH) using Oracle and PL/SQL. * Designing, implementing, and optimizing ETL/ELT processes. * Creating reports and dashboards in Oracle OAS/APEX/BI. * Creating and updating technical documentation. * Ensuring code quality and managing source code in GIT and CI/CD tools in Azure DevOps. * Optimizing the performance of processes, queries, and PL/SQL procedures. * Providing support and participating in IT projects. Our requirements: * University degree in Computer Science or a related field. * Minimum 3 years’ experience as a Data Warehouse Developer. * Very good knowledge of Oracle relational databases. * Advanced knowledge of PL/SQL. * Experience in designing ETL/ELT processes (ODI, Apache Airflow). * Experience working with BI-class tools (Oracle APEX, OAS). * Practical knowledge of version control systems, GIT. * Knowledge of data warehouse architecture and best practices in design. * English language proficiency sufficient to work with technical documentation and communicate with Oracle technical support. * Fluent Polish language skills — documentation and meetings are conducted in Polish. * Effectiveness in action. * Business responsibility. * Commitment to continuous development and openness to diverse perspectives. What we offer: * Attractive remuneration and stable employment * Diverse team of employees * Work in a modern, international corporation * Opportunity to collaborate with experts from various fields * Participation in large-scale, innovative projects * Access to modern tools and working methods * Benefits * Life insurance * Annual charity initiatives * Sports card