Hiring a Gearmand developer can significantly improve your application's performance by enabling task distribution across multiple machines. They are skilled at creating efficient, scalable systems and can help in managing background job processing and workload distribution, which is critical for applications dealing with high traffic or data. Their expertise ensures better load balancing, fault tolerance, and prioritization of tasks, leading to enhanced productivity and robust application performance. They can also provide solutions for real-time updates and notifications. Therefore, a Gearmand developer is a valuable asset for developing and maintaining high-performance applications.