Hiring an Infosphere Streams developer is beneficial as they can handle massive data streams in real-time, providing timely insights and decision-making support. They can design and implement models that process data in motion, detecting situations and triggering responses instantly. This skill helps in various sectors like finance, healthcare, or telecommunications, where real-time data processing is crucial. The developer's expertise in managing large-scale, complex applications allows for enhanced operational efficiency and competitive advantage. They can also integrate AI and machine learning models into stream computing applications, driving innovation and business growth.