Hiring a JSR developer is beneficial for businesses aiming to build or manage a portal application. JSR , or Java Portlet Specification, offers standard APIs for portal computing that enhance interoperability and reduce complexity. A JSR developer can leverage this specification to create reusable and independent web components, ensuring seamless integration and improved user experience. Their expertise can also help in achieving cost-effectiveness, reduced development time, and enhanced system maintainability. Therefore, a JSR developer is crucial for businesses that want to optimize their portal applications and web services.