The job description of a Java developer typically includes the following key responsibilities and qualifications:

Responsibilities:

1. Designing and Developing Applications: Create and maintain scalable, robust, and efficient Java applications.

2. Coding and Testing: Write clean, maintainable code following best practices. Conduct thorough testing and debugging to ensure functionality and reliability.

3. Integration and Deployment: Integrate Java applications with backend services and third-party libraries. Deploy applications and ensure they run smoothly in production environments.

4. Collaboration: Work closely with cross-functional teams including designers, product managers, and other developers to translate requirements into technical solutions.

5. Documentation and Maintenance: Document development phases and monitor systems to ensure performance and security. Update and maintain applications as needed.

Qualifications:

1. Java Expertise: In-depth knowledge of Java programming language and its ecosystem including JVM, frameworks like Spring or Hibernate, and build tools such as Maven or Gradle.

2. Database Skills: Proficiency in SQL and experience with databases like MySQL, PostgreSQL, or Oracle.

3. Web Technologies: Understanding of web development basics such as HTML, CSS, and JavaScript. Familiarity with frontend frameworks like Angular or React is a plus.

4. Problem-solving Skills: Ability to analyze problems and implement effective solutions. Debugging and troubleshooting skills are essential.

5. Team Player: Strong communication skills and ability to work effectively in a collaborative environment.

6. Continuous Learning: Willingness to stay updated with the latest industry trends and technologies related to Java development.

Education and Experience:

• Typically requires a Bachelor’s degree in Computer Science, Engineering, or a related field.
• Proven work experience as a Java developer, with demonstrated projects and achievements in software development.
• Certifications or additional training in Java programming or related technologies can be advantageous.