A Java developer's work responsibilities can vary depending on the specific role, company, and project they are working on. However, some common responsibilities for Java developers include:

Designing, Implementing, and Maintaining Java Applications:

Developing high-performance, scalable, and robust applications.

Writing clean, readable, and maintainable Java code.  

Analyzing and Solving Technical Problems:

Debugging and resolving technical issues.

Conducting performance tuning and optimization.

Participating in the Software Development Lifecycle:

Contributing to all phases of the development lifecycle, from initial requirements gathering to design, coding, testing, and deployment.

Following Agile or other development methodologies.

Code Reviews and Collaboration:

Reviewing code written by other developers to ensure quality and adherence to standards.

Collaborating with cross-functional teams, including designers, product managers, and other developers.

Unit Testing and Test Automation:

Writing unit tests to ensure the reliability of the code.

Implementing automated tests to streamline the testing process.

Documentation:

Creating and maintaining technical documentation for new and existing software.

Documenting development processes and decisions.

Staying Updated with Technology Trends:

Keeping up-to-date with the latest industry trends, technologies, and best practices.

Continuously learning and improving skills.

Mentorship and Knowledge Sharing:

Mentoring junior developers and providing guidance and support.

Sharing knowledge and best practices within the team and the organization.

Database Management:

Designing, implementing, and maintaining database schemas.

Writing and optimizing SQL queries.

Visit- Java Classes in Pune