These proceedings gather cutting-edge papers exploring the principles, techniques, and applications of Microservices in Big Data Analytics.The ICETCE-2019 is the latest installment in a successful series of annual conferences that began in 2011. Every year since, it has significantly contributed to the research community in the form of numerous high-quality research papers. This year, the conference’s focus was on the highly relevant area of Microservices in Big Data Analytics.