Java

Java is the dominant language for back-end enterprise services — MES, ERP integrations, quality data warehouses, and the analytics platforms that consume battery production data. As a hard skill it requires fluency in the JVM ecosystem (Spring Boot, Hibernate, build tools like Maven and Gradle), threading model, garbage collection tuning, and the layered architecture (services, repositories, controllers) that production-grade applications follow. Software engineers apply it when extending the MES with new test-data ingestion services, when building APIs that field engineers query for pack history, and when integrating SAP modules with the factory floor's PLC layer.

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