Hiring a HSQL developer can significantly improve your database management. They are adept at handling HSQLDB, a lightweight, fully-featured, and fast relational database system written in Java. Their expertise allows for efficient data manipulation and retrieval, leading to better insights and decision-making. They can develop robust, high-performance applications and systems that are cross-platform compatible due to Java's versatility. Furthermore, they can help in maintaining data integrity and security, crucial in today's data-driven business environment. Overall, a HSQL developer can contribute to enhancing your data management capabilities and business operations.