In this talk we will look at the differences between micro-services and monolith architectures and their relative benefits and disadvantage. We will look at design patterns which will allow us to utilize these different strategies as a deployment concern without significant changes to the business logic. We will look at how micro-service architecture can be implemented under low latency constraints of 10 - 100 micro-second latencies, in Java in particular, and how these strategies reduce the impact of serializing data and logging.