Hiring a Command Query Responsibility Segregation (CQRS) developer presents numerous advantages. First, they can create highly scalable and performance-oriented applications. With CQRS, they can segregate operations that read data from those that update data, optimizing for each operation, thus improving the application's overall performance.
Secondly, CQRS developers have a deep understanding of Domain-Driven Design (DDD). They can create complex business systems that are maintainable, flexible, and easily understandable, thus reducing the total cost of ownership.
Thirdly, they help increase system security by separating the read and write models, ensuring that a compromise in one does not affect the other.
Fourthly, CQRS developers are proficient in event sourcing, which allows the storage of all changes to the application state as a sequence of events. This facilitates auditing, debugging, and allows the system to be easily reconstructed to any point in time.
Moreover, they can leverage the CQRS pattern to create asynchronous systems that provide better user experiences by reducing waiting times for users.
Lastly, they can help your team to better understand the business problem at hand, as the CQRS pattern encourages the development of models that closely mirror the real-world processes they are designed to handle.