Piotr Mińkowski has more than 10 years of experience working as a developer and an architect in the banking and telecommunications sectors. He specializes in Java as well as in technologies, tools, and frameworks associated with it. Now, he is working at Play, a mobile operator in Poland, where he is responsible for the IT systems architecture. Here, he helps the organization migrate from monoliths/SOA to a microservices-based architecture, and also helps set up full Continuous Integration and Delivery environments.

Samer ABDELKAFI has over 13 years of experience as a software architect and engineer, with a major focus on open source technologies. He has contributed to numerous and diverse projects in different sectors, such as banking, insurance, education, public services, and utility billing. In the end of 2016, he created DEVACT, a company specializing in information technology consulting. He also reviewed a book titled Spring MVC Blueprints. In addition to his day job, Samer shares his experience in his blog, writing articles related to Java and web technologies.

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