Hiring a jConsole developer is beneficial because they have expertise in using this Java Monitoring and Management Console. They can effectively monitor Java applications and their consumption of resources, identify memory leaks, manage Java beans, and debug applications. This helps in optimizing application performance, ensuring stability, and reducing downtime. They also understand the intricate details of Java management extensions (JMX), further enhancing the ability to manage and monitor your applications. Thus, a jConsole developer is a valuable asset for maintaining high-quality Java applications.