Serverless Distributed Systems in Modern .Net and Azure: Building Resilient Event-Driven Applications

Patrick Kearns is a senior software engineer, architect, and DevOps practitioner with more than three decades of professional experience, including more than 20 years working with .NET. He has worked across ecommerce, finance, insurance, and enterprise SaaS, helping teams design, build, and operate distributed systems where reliability and scalability are critical.
Patrick began his career building monolithic systems using early versions of ASP.NET and WCF. As the industry shifted toward microservices and event-driven architectures, he gained hands-on experience with the practical challenges of distributed systems, including latency, partial failure, and operational complexity. His work spans high-throughput ecommerce platforms and compliance-driven insurance systems, where architectural decisions had direct business impact
Patrick lives in Ireland, where he balances his work in technology with family life, writing, and creative projects. He continues to experiment, learn, and share knowledge, believing that the best way to master complex systems is to explain them clearly to others. His hope is that this book will help .NET developers feel confident tackling distributed, event-driven systems, and that it will provide both the technical guards and the mental models needed to succeed.