Java developer roles will vary greatly depending on companies and job positions. Here are some typical roles and responsibilities of java developers:

Contribute to all stages of software development lifecycle Design, implement and maintain Java-based applications that can be high-volume and low-latency Analyze user requirements to define business objectives Envisioning system features and functionality Define application objectives and functionality Ensure application designs conform with business goals Develop and test software Identify and resolve any technical issues arising Create detailed design documentation Propose changes to current Java infrastructure Develop technical designs for application development Develop multimedia applications Write well designed, testable code Conducting software analysis, programming, testing, and debugging Manage Java and Java EE application development Develop documentation to help users Transforming requirements into stipulations Prepare and produce releases of software components Support continuous improvement, investigating alternatives and technologies, and presenting for architectural review