A Java developer designs, implements, and maintains Java applications that are often high-volume and low-latency, required for mission-critical systems. They contribute in all phases of the development lifecycle, including writing well-designed, efficient, and testable code. They ensure designs comply with specifications, prepare and produce software component releases. Their role also involves resolving technical issues through debugging, research, and investigation. They utilize frameworks for Java into business applications, software, and websites. They also interact with different stakeholders, from data scientists to designers, during the software development process. Furthermore, they often work on enhancing application functionality and adding features.