Hiring an Apache Active MQ developer provides a robust solution for application integration through message-oriented middleware. They can ensure reliable, asynchronous communication between applications in distributed systems, reducing downtime and enhancing system performance. They bring expertise in Java Message Service (JMS) API, enabling seamless connectivity across different platforms. Their understanding of complex web architectures can help to optimize data flow, maintain transactional integrity, and increase system scalability. Additionally, they can assist in implementing failover, load balancing, and distributed queues, enhancing system reliability and resilience.