Java Developer; Universe DB & SQL

Overview

The candidate must be based in Poland. Project:
We are executing a phased modernization program to migrate a legacy enterprise system built on Universe (Uni Verse/Uni Data) database technology to a modern Java-based platform with a relational SQL backend for a big US insurance company.

• This role focuses on Java-driven migration tooling and data validation, combined with deep expertise in Universe DB. The developer will build Java-based solutions to extract, transform, validate, and reconcile data and data-driven logic from Universe DB, supporting the core Java application team by ensuring data accuracy, consistency, and functional parity throughout the migration.

• Java:
  • Strong experience with Java for backend development, batch processing, or tooling
  • Experience with Java frameworks (Spring / Spring Boot preferred)
  • Familiarity with data processing, concurrency, and error handling
  • Ability to build reliable, reusable migration and validation components
• Universe DB:
  • Hands-on experience with Universe DB (Uni Verse or Uni Data)
  • Strong understanding of:
  • DICT files and metadata
  • Data extraction and access patterns
  • Experience supporting Universe-based systems or migrations
• Databases & SQL:
  • Solid SQL skills (Postgre
    
    SQL, Oracle, SQL Server, or similar)
  • Experience mapping multi-value data to relational schemas
  • Understanding of data integrity, transactions, and performance considerations

• Experience in Universe DB to SQL migration projects
• Familiarity with ETL concepts and data validation frameworks
• Basic understanding of Java backend data access patterns
• Experience working in phased or parallel-run migrations
• Exposure to enterprise or regulated environments