Geoffrey De Smet
Geoffrey De Smet is the founder and lead of OptaPlanner (www.optaplanner.org), the open source AI constraint solver in Java that is used across the globe to automatically solve employee rostering, vehicle routing, task assignment, maintenance scheduling and other planning problems. He’s an international speaker.
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Mala Gupta
Mala Gupta works as a Developer Advocate with JetBrains. A Java Champion, she has authored multiple books with Manning, Packt, and O’Reilly Publications. She is an international speaker at industry conferences and has over two decades of experience in the software industry. She has been actively supporting Java certification as a path to career advancement. She co-leads Delhi’s Java User Group. A strong supporter of Women in Technology, she drives initiatives of the Women Who Code Delhi chapter to augment the participation of women in tech.
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Buhake Sindi
Buhake Sindi is an enterprise Software engineer, architect and developer specialising primarily in Enterprise Java (Jakarta EE, formely Java EE) with over 15 years in Software development experience. In the past few years he has dabbled in various DevOps roles, building CI/CD pipelines for enterprises as well as now migrating platforms from physical infrastructures to the cloud.
Outside of programming, he occasionally makes music or creates events to introduce programming to young children through Devoxx4Kids South Africa (which he started in 2017).
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Simon Ritter
Simon Ritter is the Deputy CTO of Azul Systems. Simon has been in the IT business since 1984 and holds a Bachelor of Science degree in Physics from Brunel University in the U.K.
Simon joined Sun Microsystems in 1996 and started working with Java technology from JDK 1.0; he has spent time working in both Java development and consultancy. Having moved to Oracle as part of the Sun acquisition, he managed the Java Evangelism team for the core Java platform. Now at Azul, he continues to help people understand Java as well as Azul’s JVM technologies and products. Simon has twice been awarded Java Rockstar status at JavaOne and is a Java Champion. He represents Azul on the Java SE Expert Group, OpenJDK Vulnerability Group and Adoptium Steering Committee.
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Reza Rahman
Reza Rahman is Principal Program Manager for Java on Azure at Microsoft. He works to make sure Java developers are first class citizens at Microsoft and Microsoft is a first class citizen of the Java ecosystem.
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Josh Long
Josh (@starbuxman) has been the first Spring Developer Advocate since 2010. Josh is a Java Champion, author of 6 books (including O’Reilly’s “Cloud Native Java: Designing Resilient Systems with Spring Boot, Spring Cloud, and Cloud Foundry” and “Reactive Spring”) and numerous best-selling video training (including “Building Microservices with Spring Boot Livelessons” with Spring Boot co-founder Phil Webb), and an open-source contributor (Spring Boot, Spring Integration, Spring Cloud, Activiti and Vaadin, etc), a podcaster (“A Bootiful Podcast”) and a YouTuber.
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Phillip Kruger
Phillip’s an accomplished Software developer and architect offering experience in creating systems in various industries, ranging from banking, insurance, rewards programs, retail and mobile. He has extensive experience in full stack development, and prefer to be active in all parts of the SDLC. From conceptualizing to running in production. I have a passion for clean code and evolutionary architecture. I love Java, Linux and Open source.
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Rory Preddy
Rory works in the Developer Relations team at Microsoft as a Senior Cloud Advocate. Cloud Advocates use their deep research skills to help professional cloud developers discover and successfully use Microsoft’s platforms.
A seasoned speaker whose talks are both meaningful and humorous, Rory speaks around the world empowering developers to achieve more.
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Andres Almiray
Andres is a Java/Groovy developer and a Java Champion with more than 20 years of experience in software design and development. He has been involved in web and desktop application development since the early days of Java. Andres is a true believer in open source and has participated on popular projects like Groovy, Griffon, and DbUnit, as well as starting his own projects (Json-lib, EZMorph, GraphicsBuilder, JideBuilder). Founding member of the Griffon framework and Hackergarten community event.
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Gerard de Jong
Aspiring supervillain and former software developer out for revenge on the project managers who said “can you commit to a date”, the product owners who said “we need this extra feature”, and the QA testers who signed it all off for deployment into production.