Vaughn Vernon is the founder, principal architect, and developer of vlingo/PLATFORM at Kalele. A software developer and architect with more than 35 years of experience in a broad range of business domains, Vaughn is a leading expert in domain-driven design (DDD) and champion of simplicity and reactive systems. Vaughn is the author of three books: Implementing Domain-Driven Design, Domain-Driven Design Distilled, and Reactive Messaging Patterns with the Actor Model, all published by Addison-Wesley.