Design factors that need to considered for application with very high Transactions Per Second (TPS)

I am about to work on an application that need to handle high transactions per second (around 5000). The application needs to provide REST interface, with server side technologies including EJB, JMS, Infinispan.

Could you please let me know briefly the best practices that need to be considered while designing the application that needs to handle high volume of requests. Also please point to some resources which give more information.