April 8, 2026

Java Developer

Mid • Remote

120 - 135 PLN

Warsaw, Poland

Key Responsibilities

  • Design, develop, and maintain backend services and applications using Java.

  • Build and support data integration layers and APIs connecting various systems.

  • Collaborate closely with Azure Data Factory Engineers on ETL/ELT processes and data pipelines.

  • Integrate systems using REST APIs and other data exchange mechanisms.

  • Work with databases and optimize queries using SQL.

  • Support data processing workflows and ensure data consistency and quality.

  • Participate in CI/CD processes and contribute to automation and deployment pipelines.

  • Troubleshoot and resolve issues related to data flow and system integrations.

  • Collaborate with cross-functional teams including data engineers, analysts, and business stakeholders.

Required Skills

  • Strong experience in Java development.

  • Good knowledge of SQL and relational databases.

  • Experience working with REST APIs and system integrations.

  • Understanding of data processing, ETL/ELT concepts, or data pipelines.

  • Familiarity with cloud environments, preferably Microsoft Azure.

  • Experience with CI/CD pipelines and DevOps practices.

  • Strong problem-solving and analytical skills.

  • Good communication skills and ability to work in a collaborative environment.

Nice to Have

  • Experience working with Azure Data Factory (ADF) or close collaboration with data teams.

  • Familiarity with Azure services such as Azure SQL, Data Lake, or Synapse.

  • Experience with messaging systems or event-driven architectures.

  • Knowledge of data modeling concepts.

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