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Posted Feb 26, 2026

Software Developer; Java, Oracle & PostgreSQL

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Position: Software Developer (Java, Oracle & PostgreSQL) Location: Germany DATAGROUP in Krakau or Hybrid DATAGROUP is one of the leading German IT service providers - thanks to our dedicated team. Our passion for technology and innovation enables us to provide our customers with reliable IT services. With us, you can expect a fascinating and challenging field of activity in an innovative company. An open corporate culture, individual training opportunities and diverse development opportunities mean a workplace tailored to you and your life. Contact Person Bartlomiej Musial Position Overview DATAGROUP Polska Sp. z o.o. is looking for a skilled Java/Oracle Developer to support our ongoing technology refresh and migration initiatives . This is a mid-level position offering remote flexibility and the opportunity to work on forward-looking IT projects that involve modernizing legacy systems and migrating to cloud and open-source platforms. Responsibilities • Design and implement robust, scalable, and efficient JAVA-based frontend as well as Java components and Oracle PL/SQL procedures for the ETL process. • Contribute to the migration from Oracle to Postgre SQL. • Collaborate with cross-functional teams on application modernisation and cloud migration efforts. • Ensure code quality, performance, and maintainability throughout the development lifecycle. Your Profile • Solid experience in Java development and object-oriented programming. • Strong skills in Oracle PL/SQL and ideally some exposure to Postgre SQL. • Familiarity with IBM Data Stage is a plus. • Good understanding of RESTful APIs, Git, and modern development practices. • Strong communication skills in English; German is a plus. Bonus Skills • Google Cloud Platform (GCP) – Big Query, Astronomer, CloudSQL • IBM Cloud Pak for Data (CP4D) – especially for ETL and Data Stage migration • Scheduling systems like Airflow or Astronomer Offer Benefits • Flexible working hours and remote work options (Poland only). • Open and cooperative corporate culture and a trusting working atmosphere. • Flat hierarchies and short decision paths. • Individual training opportunities and interesting technical challenges. • Social benefits. #J-18808-Ljbffr