The landscape of application development has shifted dramatically, moving from monolithic applications to cloud-native microservices. This session will explore the evolution of application design principles, starting with the widely adopted 12factor.net methodology, designed initially for SaaS platforms like Heroku. We will delve deeper, examining the 15 Factors, an extended set of principles that incorporate the lessons learned from real-world cloud deployments and embrace modern practices. These 15 factors build upon the original 12, offering a framework that makes your application truly cloud-native, working across any cloud provider. This talk will cover topics such as API-First, Telemetry, Security and the evolution of concepts like Dev/Prod parity, stateless process and more. If you're looking to build, evolve, or migrate applications to the cloud, this session will provide you with a blueprint for success.

This session will provide actionable insights, practical strategies and modern concepts to help attendees build applications that are not just "in the cloud," but truly of the cloud. Attendees will understand what it means to build truly cloud-native applications, what trade-offs exist when it comes to pragmatic approaches over idealistic approaches, and what it takes to move existing applications from legacy ways to modern cloud-native ways.