Today, it seems like Microservices are the de facto standard for a system architecture, but do they really live up to the hype? Sure, they have a lot of advantages, but they also come with some extra amount of complexity. As a Clean Coder, I will fight any kind of complexity! This talk will show you an alternative approach – how we can tame complexity with the help of a clean, monolithic architecture that is modular to the core. With a minimum needed amount of theory, based on simple code examples, we will practically work out how to implement a system of high cohesion and low coupling, how to strongly encapsulate the system on class and service layer, and how to apply the concepts of domain-driven design.