Hiring a Java Concurrency developer brings several significant advantages to a tech team. Firstly, Java Concurrency developers are proficient in creating multi-threaded applications, which are capable of performing multiple operations simultaneously. This results in increased efficiency and improved performance, especially in high-load environments.

Secondly, these developers can effectively manage and control multiple threads, preventing common issues like deadlocks, race conditions, and thread interference. Their expertise ensures the smooth operation of complex applications, reducing the risk of unexpected crashes or performance drops.

Moreover, with their knowledge of Java memory model, they can optimize the usage of system resources, which can significantly improve speed and responsiveness. This is particularly beneficial for real-time applications or systems that need to handle large volumes of data.

Fourthly, Java Concurrency developers can design scalable applications that can adapt to increasing demands. This is crucial for businesses aiming to grow or expand, as it ensures that their software infrastructure can accommodate growth without sacrificing performance or stability.

Lastly, hiring a Java Concurrency developer can lead to better code quality and structure. They can build robust and maintainable code, making it easier to debug, update, or modify the system in the future. This can save time and resources in the long run, and contribute to the overall success of software projects.