Java
The dominant language of large-company backend systems, and the original language of Android apps.
What it tells you about a developer
Java depth signals enterprise backend experience: big codebases, formal process, systems that stay up. Java developers convert easily to C# or Kotlin. Spring experience specifically maps to large-company work.
- Type
- Language
- Released
- 1995
- Used in
- BackendMobile
Banks, insurers, and most of the Fortune 500 run Java backends, usually with the Spring framework. Android development used Java before Kotlin took over. Java experience skews toward larger organizations and long-running systems. Java and JavaScript are separate languages with no shared history, despite the names.