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.

• 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 PostgreSQL.


• Collaborate with cross-functional teams on application modernisation and cloud migration efforts.


• Ensure code quality, performance, and maintainability throughout the development lifecycle.

We’re seeking someone with a strong technical foundation and a proactive mindset. You should have:

• Solid experience in Java development and object-oriented programming.


• Strong skills in Oracle PL/SQL and ideally some exposure to PostgreSQL.


• Familiarity with IBM DataStage is a plus.


• Good understanding of RESTful APIs, Git, and modern development practices.


• Strong communication skills in English; German is a plus.

You’ll be working alongside other specialists in related areas. If you have experience or interest in any of the following, it’s a big advantage:

• Google Cloud Platform (GCP) – BigQuery, Astronomer, CloudSQL


• IBM Cloud Pak for Data (CP4D) – especially for ETL and DataStage migration


• Scheduling systems like Airflow or Astronomer

At DATAGROUP Polska Sp. z o.o., we value our employees and offer a comprehensive benefits package to support your professional and personal growth:

• 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