The development of a successful SaaS Pricing Engine is critical for a company's success and requires careful consideration of several key factors. To build a system that provides nanosecond pricing, companies need to use a time series database to store utilization data, design their architecture for cloud scale to handle the volume of metrics required, and prioritize 99.999% uptime to ensure customer satisfaction. By meeting these requirements, companies can provide granular pricing that meets customers' demands and achieve maximum efficiency for both the customer and the company itself.