Gustavo Felix is a Senior .NET & Azure Software Engineer with extensive experience designing and building enterprise systems using microservices architectures, Clean Architecture, and modern cloud-native technologies. 

He has led engineering initiatives across fintech, logistics, and SaaS platforms, specializing in scalable backend systems, distributed event-driven workflows, and secure API development. Gustavo is passionate about teaching, mentoring, and helping developers grow into confident, high-level engineers through practical, real-world examples.

With this book, he brings together years of professional experience to teach full-stack developers how to build production-grade banking systems the way modern engineering teams operate today.