Hiring an Infrastructure as Code (IaC) developer is pivotal for automating and managing your IT infrastructure efficiently. They ensure consistent, repeatable, and rapid deployment, reducing manual errors and system discrepancies. They can help streamline processes, enhance productivity, and ensure compliance standards. IaC developers can also significantly reduce costs by minimizing the need for physical hardware through virtualization. They foster an efficient, collaborative environment as code changes and updates can be tracked and rolled back if necessary, promoting a DevOps culture. Thus, they're key to the agility, scalability, and reliability of your IT infrastructure.