Hiring a LWUIT developer can be beneficial for creating rich, portable interfaces for mobile and embedded devices. Their expertise in Lightweight UI Toolkit (LWUIT) can help in building compelling Java ME applications with a consistent look and feel across various devices. They can leverage LWUIT's features like widgets, theming, transitions, and animations to enhance user experience. Furthermore, a LWUIT developer can ensure efficient memory usage and performance optimization, crucial for resource-constrained devices. Their skills can be instrumental in overcoming challenges related to screen size, resolution, and input methods in mobile application development.