Requirements

Expected technologies

Java

Oracle

SQL

JavaScript

Eclipse

Microsoft Access

Our requirements

• 5+ years of professional experience in software/data integration
• Strong knowledge in Java (Eclipse IDE)
• Proficiency in Oracle Database and SQL
• Experience with ETL tools and logic
• Familiarity with Microsoft Access
• Skills in data transformation & consistency
• Knowledge of ODBC/DSN configuration
• Analytical thinking and attention to data quality
• Fluent in English (B2+) and Polish (C1)
• Willingness to travel to Germany once during the project

Your responsibilities

• Maintain and enhance a custom Java-based reporting system (Eclipse environment)
• Design and optimize data models to support billing accuracy
• Build and monitor ETL processes (Oracle DB, MS Access)
• Import, transform, and synchronize data from multiple sources
• Enrich billing data with contract/debit information
• Develop or adapt web-based reports (JavaScript, Alice platform)
• Manage access control and permissions for a large user base
• Work closely with cross-functional and international teams