Over the past decade, I've watched the travel industry transform its booking infrastructure from monolithic reservation systems into distributed microservices architectures (and the data bears this out). This shift hasn't been merely technological fashion—it's been a necessary evolution to handle the complexity and scale modern online travel demands.

When I first encountered a major booking platform processing thousands of transactions per minute across flights, hotels and ancillary services, the architectural challenges became immediately clear. A single booking isn't a simple database write. It's a choreographed dance of inventory checks, payment authorisation, supplier confirmations, customer notifications, and loyalty point allocations.…