Java remains one of the most widely deployed enterprise application platforms — not because it’s the newest technology, but because it solves enterprise-scale problems reliably and has a mature ecosystem of tools, frameworks, and talent. Choosing a development partner for Java work requires understanding what distinguishes teams with genuine depth from those with surface familiarity.
The Java Ecosystem Is Not Monolithic
A java application development company that specializes in Spring Boot microservices is doing something meaningfully different from one that builds Jakarta EE enterprise applications or Android-targeted Java code. Ask specifically which parts of the Java ecosystem the team has the most production experience with — the answers reveal where the genuine depth is.
The Oracle Java Developer Relations team maintains documentation on current Java development best practices and LTS release schedules. Java 21 is the current LTS; a development team should be current on LTS versions and able to articulate their approach to version management in production environments.
Spring Framework Proficiency
For most enterprise Java development, Spring or Spring Boot is the practical default. The team’s depth with Spring — dependency injection, Spring Security, Spring Data, Spring Cloud — is a more relevant indicator than general Java experience for most enterprise application contexts.
Testing and CI/CD
Java has excellent testing tooling — JUnit, Mockito, Testcontainers. A team that doesn’t use these comprehensively is producing code with unknown reliability characteristics. Ask for examples of test coverage and CI/CD pipeline configuration from previous projects.