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Otavio is a passionate architect and software engineer focused on cloud and Java technologies. He has deep expertise in polyglot persistence and high-performance applications in finance, social media, and e-commerce.
Josh Juneau is a Java Champion who works as an application developer, system analyst, and database administrator. He primarily develops using Java, Jakarta EE, and other JVM technologies. He is a frequent contributor to the Oracle Java Magazine and has written several books on Java and Java/Jakarta EE for Apress. He is a member of the JCP and the Jakarta EE Ambassadors, and is a contributor for Apache NetBeans. Josh is a regular voice on the Java OffHeap and Stackd podcasts.
Mary is a Java Champion and a passionate Streaming Developer Advocate at DataStax, a leading data management company that champions Open Source software and specializes in Big Data, DB-as-a-service, Streaming, and Cloud-Native systems. She spent 3.5 years previously as an advocate at IBM, focusing on Java, Jakarta EE, OpenJ9, Open Source, Cloud, and Distributed Systems. She is an active tech community builder outside of her day job, and currently the President of the Chicago Java Users Group (CJUG).
Mala Gupta works as a Java Developer Advocate with JetBrains. A Java Champion, she has authored multiple books with Manning, Packt, and O’Reilly Publications. She has over 20 years of experience in the software industry and is a frequent speaker at international industry conferences. She actively supports Java certification as a path to career advancement. She co-leads Delhi JUG and Women Who Code Delhi.
Edwin Derks is a Java Champion and Principal Consultant with Team Rockstars IT. He has a passion for collecting and sharing knowledge about improving IT in organizations, and is adept with cloud-driven software development. He often organizes meetings, writes articles, blogs and speaks at conferences.
