Hiring an IMS DB/DC developer is beneficial as they are skilled in managing IBM's hierarchical database, IMS DB, and online transaction processing system, IMS DC. They can effectively handle large volumes of transactions, ensuring fast and secure data processing. Their expertise allows for efficient database design, data manipulation, and problem-solving, which can significantly enhance your system's performance. They ensure data integrity, minimize downtime, and maintain system's robustness, which is crucial for businesses relying on heavy data transactions. Thus, an IMS DB/DC developer is a valuable addition to your team.