Hiring an Alembic developer is beneficial as they can manage and migrate database schemas efficiently in a version-controlled manner. They are skilled in producing migration scripts for database changes, ensuring data consistency and integrity. Their expertise allows for seamless integration of databases with Python applications, enhancing performance and functionality. They are proficient in handling complex database structures, minimizing potential data loss during migration. Additionally, an Alembic developer can help reduce the time and effort required for database modifications, thereby increasing productivity and reducing development costs.