Hiring a Java developer is beneficial due to Java's versatility and wide usage in the IT industry. Java is platform-independent, allowing applications to run on various systems seamlessly. It's extensively used for building enterprise-scale applications, Android apps, and web and cloud applications. A Java developer can leverage robust, secure, and object-oriented features of Java to build efficient software solutions. They can also contribute to system architecture decisions, handle back-end tasks, and troubleshoot complex problems, bringing immense value to your projects. Their skills can help drive innovation and efficiency in your business.