Java Scala Backend Developer

This role is within the technology industry and involves working on backend services and pipelines modernization. The position includes onboarding in Malmo, Sweden, and hybrid work mode with 3 days in the Warsaw office.

• Hands-on experience with production Java/Scala services.
• Familiarity with Play Framework internals.
• Experience with Spark for pipeline-heavy work.
• Comfortable with OAuth-based authentication patterns.

Nice to Have:

• Familiarity with React/TypeScript.
• For DevOps-leaning candidates: experience with Gradle, scripting, and CI/CD pipelines.

• Modernise backend services and pipelines by upgrading to the latest JDK, Scala 3.x, and Play Framework 3.x.
• Apply GenAI tooling to automate code transformations, dependency resolution, and compatibility fixes, producing reusable tools and documentation.
• Migrate authentication frameworks from legacy APIs to OAuth-based solutions across various backend services.
• Replace multiple data stores with a single versioned table, creating Spark/Java batch pipelines for backfill/migration and extending Scala/Play backends.