Lefteris is a Solutions Architect at Amazon Web Services with 20 years of experience in Software Engineering. Throughout his career, Lefteris has demonstrated expertise in successfully leading the migration of large monoliths to event-driven microservices architectures.

Additionally, he has served as an AWS Tech Instructor, having trained more than 200 individuals on AWS. Lefteris is a passionate technical writer, having contributed as a Technical Author for Java Code Geeks, one of the most popular blogs for Java Programmers. Lefteris engages with the tech community through his newsletter, "The Cloud Engineers", where he shares weekly articles on cloud.

Lefteris is a co-owner and a major contributor to the "Java on AWS Lambda” workshop, which has been presented at conferences around the world, including AWS re:Invent. He has Co-Founded a startup and successfully launched a MarTech platform on AWS where he has won 10K credits for the innovative platform.

Lefteris has authored the book “Mastering Event-Driven Microservices in AWS”, a practical guide equips you with the knowledge and skills to design, build, and operate resilient, scalable, and fault-tolerant systems on AWS.