A Java developer designs, implements, and maintains software applications using the Java programming language. This role is foundational in building server-side systems, enterprise platforms, mobile apps, and web-based tools that prioritize performance, security, and scalability. Java developers often use frameworks such as Spring Boot or Hibernate and work with relational databases to create APIs, automate processes, and manage data transactions.

These professionals work closely with cross-functional teams, including front-end developers, QA engineers, and product owners, to deliver full-featured applications. Java developers are responsible for writing clean, testable code, debugging complex issues, and deploying services that support high-traffic or mission-critical systems. Their work helps businesses stay agile, reliable, and compliant in fast-paced environments.