Java Champions

All Java Champions that have added their award to their speaker profile.

  • 66 speakers
  • Auto-generated
Kevin Dubois

Kevin Dubois

Kevin is a Java Champion, software engineer, author and international speaker with a passion for Open Source, Java, and Cloud Native Development & Deployment practices. He currently works as developer advocate at Red Hat where he gets to enjoy working with Open Source projects and improving the developer experience. He previously worked as a (lead) software engineer at a variety of organizations across the world ranging from small startups to large enterprises and even government agencies.

Kevin is actively involved in Open Source communities, contributing to projects such as Quarkus, Knative, Apache Camel, and Podman (Desktop). He is also a member of the Belgian CNCF and the Belgian Java User Group.

Kevin speaks English, Dutch, French and Italian fluently and is currently based in Belgium, having lived in Italy and the USA as well.

In his free time you can find Kevin somewhere in the wild hiking, gravel biking, snowboarding or packrafting.

Kevin is a Java Champion, software engineer, author and international speaker with a passion for Open Source, Java, and Cloud Native Development & Deployment practices. He currently works as developer advocate at Red Hat where he gets to enjoy workin... Show more

Dervis Mansuroglu

Dervis Mansuroglu

Dervis is an experienced Java-developer and principal officer, currently working for the Norwegian Labour and Welfare Administration. He is passionate about programming languages, functional programming and algorithms. Dervis is a Java Champion and the leader of the Norwegian JUG JavaBin (Dukes Choice Award winner in 2019). Dervis has spoken at several international conferences as well as being a regular speaker at local meetups in Norway.

Dervis is an experienced Java-developer and principal officer, currently working for the Norwegian Labour and Welfare Administration. He is passionate about programming languages, functional programming and algorithms. Dervis is a Java Champion and t... Show more

Ixchel Ruiz

Ixchel Ruiz

Ix-chel Ruiz has developed software application & tools since 2000. Her research interests include Java, dynamic languages, client-side technologies and testing. Java Champion, Oracle ACE pro, Testcontainers Community Champion, CDF Ambassador, Hackergarten enthusiast, Open Source advocate, public speaker and mentor.

Ix-chel Ruiz has developed software application & tools since 2000. Her research interests include Java, dynamic languages, client-side technologies and testing. Java Champion, Oracle ACE pro, Testcontainers Community Champion, CDF Ambassador, Hacker... Show more

Burk Hufnagel

Burk Hufnagel

Burk is a long-time programmer and software architect, with experience in multiple languages including JavaScript and Java. He’s presented at multiple conferences including ConnectTech, DevNexus, JavaOne, and Oracle Code One, and contributed to three of the “97 Things” books published by O’Reilly.
Burk works as a Solution Architect for Daugherty Business Solutions where he's focused on finding ways to deliver better code in less time, and teaching others how to do the same.

Burk is a long-time programmer and software architect, with experience in multiple languages including JavaScript and Java. He’s presented at multiple conferences including ConnectTech, DevNexus, JavaOne, and Oracle Code One, and contributed to three... Show more

Deepu K Sasidharan

Deepu K Sasidharan

Deepu K Sasidharan is a Software Engineer by passion and profession. He is a Java Champion working as a Staff Developer Advocate at Okta. He is the co-chair of JHipster and the creator of KDash and JDL Studio. He is a polyglot programmer working with Java, Rust, JavaScript, Go, and so on. He is also a cloud technology advocate and an open-source software aficionado. He has authored books on Full-stack development and frequently writes about Java, Rust, JavaScript, Go, DevOps, Kubernetes, Linux, and so on, on his blog.

Deepu K Sasidharan is a Software Engineer by passion and profession. He is a Java Champion working as a Staff Developer Advocate at Okta. He is the co-chair of JHipster and the creator of KDash and JDL Studio. He is a polyglot programmer working with... Show more

Melissa McKay

Melissa McKay

Melissa is passionate about Java, DevOps and Continuous Delivery. She is currently Head of Developer Relations for JFrog, the CNCF Governing Board, the Technical Steering Committee of OPEA, and is a Co-Chair of the Interoperability SIG of the Continuous Delivery Foundation. She loves sharing her knowledge with the community as a developer, speaker, and author. Melissa has been recognized as a Java Champion and Docker Captain, is an international speaker at numerous events including KubeCon and DockerCon, and is co-author of the O'Reilly title, DevOps Tools for Java Developers.

Melissa is passionate about Java, DevOps and Continuous Delivery. She is currently Head of Developer Relations for JFrog, the CNCF Governing Board, the Technical Steering Committee of OPEA, and is a Co-Chair of the Interoperability SIG of the Continu... Show more

Mark Heckler

Mark Heckler

Mark Heckler, MBA is a software developer & Principal Cloud Developer Advocate for Java/JVM Languages at Microsoft, conference speaker, Java Champion, and Kotlin Developer Expert focused on developing innovative production-ready software at velocity for cloud and edge computing platforms. He has worked with key players in numerous industries and public sector organizations to develop and deliver critical capabilities on time and on budget. Mark is an open source contributor and author of Spring Boot: Up and Running (https://bit.ly/springbootbook) and can be found on Twitter/X @mkheck.

Mark Heckler, MBA is a software developer & Principal Cloud Developer Advocate for Java/JVM Languages at Microsoft, conference speaker, Java Champion, and Kotlin Developer Expert focused on developing innovative production-ready software at velocity ... Show more

Nacho Cougil

Nacho Cougil

Nacho is a software engineer from Barcelona, fan of TDD and XP practices. He has been working with Java and other web technologies before the effect 2000 and had experience in different roles in the IT world now working at Dynatrace writing code to monitor applications. You may probably meet him before as founder of the Barcelona Java Users Group & the Java & JVM Barcelona Conference ( JBCNConf ). He enjoys spending time with his family, playing sports & improving his eXtreme Programming skills

Nacho is a software engineer from Barcelona, fan of TDD and XP practices. He has been working with Java and other web technologies before the effect 2000 and had experience in different roles in the IT world now working at Dynatrace writing code to m... Show more

Andrzej Grzesik

Andrzej Grzesik

ags likes distributed systems in all shapes and form. Coding since the age of 8, loves simplicity and continuous delivery. While he has written in many languages, he favours the JVM. Since "most software problems are people problems”, he stirs communities, organizes and speaks at conferences (proud to be a JavaONE Rockstar!). He is passionate about all things data, because science! In his spare time…cycling, photography and books. And he is a Java Champion!

ags likes distributed systems in all shapes and form. Coding since the age of 8, loves simplicity and continuous delivery. While he has written in many languages, he favours the JVM. Since "most software problems are people problems”, he stirs commun... Show more

Gerrit Grunwald

Gerrit Grunwald

Gerrit Grunwald is a software engineer that loves coding for around 40 years already. He is a true believer in open source and has participated in popular projects like JFXtras.org as well as his own projects (TilesFX, Medusa, Enzo, SteelSeries Swing, SteelSeries Canvas). 
Gerrit blogs regularly at http://harmonic-code.org, he is an active member of the Java community, where he founded and leads the Java User Group Münster (Germany), he is a JavaOne rockstar and a Java Champion. He is a speaker at conferences and user groups internationally and writes for several magazines.

Gerrit Grunwald is a software engineer that loves coding for around 40 years already. He is a true believer in open source and has participated in popular projects like JFXtras.org as well as his own projects (TilesFX, Medusa, Enzo, SteelSeries Swing... Show more

Justin Lee

Justin Lee

Justin Lee is a Java Champion and a Kotlin fanatic. He has been programming in Java since 1996 and has worked on virtually every level of the application stack from database drivers all the way to application servers and front end interfaces. A long time advocate of Java and Kotlin, he has spoken at conferences and user groups all across three continents. He is an active open source community member contributing when and where he can. He is currently a Senior Software Engineer at DataDog and can be found on twitter and github as @evanchooly.

Justin Lee is a Java Champion and a Kotlin fanatic. He has been programming in Java since 1996 and has worked on virtually every level of the application stack from database drivers all the way to application servers and front end interfaces. A long... Show more

Christopher Judd

Christopher Judd

Christopher Judd is CTO and partner at Manifest Solutions (http://www.manifestcorp.com), an international speaker, Java Champion, an open source evangelist, and the Central Ohio Java Users Group (http://www.cojug.org) leader.  He is an accomplished writer having co-authored Beginning Groovy and Grails (Apress, 2008), Enterprise Java Development on a Budget (Apress, 2003) and Pro Eclipse JST (Apress, 2005) as well as the author of the children’s book “Bearable Moments”.  Based in Columbus Ohio, he has spent over 20 years architecting and developing software for organizations ranging from Fortune 500 to start-ups across various industries including insurance, health care, education, retail, government, manufacturing, service, and transportation.  Mr. Judd spends most of his time consulting while continuing to focus on mentoring and training in Java, mobile and related technologies.

Christopher Judd is CTO and partner at Manifest Solutions (http://www.manifestcorp.com), an international speaker, Java Champion, an open source evangelist, and the Central Ohio Java Users Group (http://www.cojug.org) leader.  He is an accomplished w... Show more

Craig Walls

Craig Walls

Craig Walls is an engineer with Broadcom, Java Champion, Alexa Champion, and the author of Spring in Action, Spring Boot in Action, and Build Talking Apps. He's a zealous promoter of the Spring Framework, speaking frequently at local user groups and conferences and writing about Spring, Alexa, and Generative AI. When he's not slinging code, Craig is planning his next trip to Disney World or Disneyland and spending as much time as he can with his wife, two daughters, 1 bird and 2 dogs.

Craig Walls is an engineer with Broadcom, Java Champion, Alexa Champion, and the author of Spring in Action, Spring Boot in Action, and Build Talking Apps. He's a zealous promoter of the Spring Framework, speaking frequently at local user groups and ... Show more

Ian Darwin

Ian Darwin

Ian has worked in software for decades, working on too many different computer systems. He's developed apps for mobile health, business, and recreation. Author of O'Reilly Java Cookbook and Android Cookbook.

Ian has worked in software for decades, working on too many different computer systems. He's developed apps for mobile health, business, and recreation. Author of O'Reilly Java Cookbook and Android Cookbook. Show more

Rustam Mehmandarov

Rustam Mehmandarov

Passionate computer scientist. Java Champion and Google Developers Expert for Cloud. Public speaker. Ex-leader of JavaZone and Norwegian JUG – javaBin.

Passionate computer scientist. Java Champion and Google Developers Expert for Cloud. Public speaker. Ex-leader of JavaZone and Norwegian JUG – javaBin. Show more

Markus Eisele

Markus Eisele

Markus is a Java Champion, former Java EE Expert Group member, founder of German JavaLand, reputed speaker at Java conferences around the world, and a very well known figure in the Enterprise Java world.

Markus is a Java Champion, former Java EE Expert Group member, founder of German JavaLand, reputed speaker at Java conferences around the world, and a very well known figure in the Enterprise Java world. Show more

Maurice Naftalin

Maurice Naftalin

Developer, author, teacher. Forty years in computing. Co-author “Java Generics and Collections”, author “Mastering Lambdas”. Java Champion, JavaOne Rockstar, frequent conference speaker.

Developer, author, teacher. Forty years in computing. Co-author “Java Generics and Collections”, author “Mastering Lambdas”. Java Champion, JavaOne Rockstar, frequent conference speaker. Show more

Jeanne Boyarsky

Jeanne Boyarsky

Jeanne Boyarsky is a Java Champion from New York City and has been a Java developer for more than 21 years. She has co-authored Wiley's Oracle Java 8 , 11, and 17 certification books. Jeanne volunteers at CodeRanch and mentors the programmers on a high school robotics team in her free time. She has spoken at numerous conferences including Dev Nexus, QCon, KCDC, and JavaOne.

Jeanne Boyarsky is a Java Champion from New York City and has been a Java developer for more than 21 years. She has co-authored Wiley's Oracle Java 8 , 11, and 17 certification books. Jeanne volunteers at CodeRanch and mentors the programmers on a hi... Show more

Frank Delporte

Frank Delporte

Frank Delporte is a Java Champion working at azul.com, blogger on webtechie.be and foojay.io, author of "Getting started with Java on the Raspberry Pi" (webtechie.be/books), and contributor to pi4j.com. Frank blogs about his experiments with Java, sometimes combined with electronic components, on the Raspberry Pi.

Frank Delporte is a Java Champion working at azul.com, blogger on webtechie.be and foojay.io, author of "Getting started with Java on the Raspberry Pi" (webtechie.be/books), and contributor to pi4j.com. Frank blogs about his experiments with Java, so... Show more

Haim Yadid

Haim Yadid

A software engineer with almost 30 years of experience in various technology fields: software development, team management, software architecture, HPC and algorithmic research. In my day job I work in Next Insurance. Before that has been focusing for 8 years on Java platform performance optimization as an independent consultant and was involved in more than a dozen optimization projects. I am still passionate about scale and performance problems and even in my current position I am still a go to person for these topics. I am a Java Champion and one of the organizers of Java.IL, the Israeli Java user group.

A software engineer with almost 30 years of experience in various technology fields: software development, team management, software architecture, HPC and algorithmic research. In my day job I work in Next Insurance. Before that has been focusing for... Show more

Eddú Meléndez Gonzales

Eddú Meléndez Gonzales

Software Engineer at Docker, Testcontainers maintainer, Open Source Contributor and Java Champion.

Software Engineer at Docker, Testcontainers maintainer, Open Source Contributor and Java Champion. Show more

Holly Cummins

Holly Cummins

Holly Cummins is a Senior Principal Software Engineer on the Red Hat Quarkus team. Before joining Red Hat, Holly was a long time IBMer, in a range of roles from cloud consultant, full-stack javascript developer, WebSphere Liberty devops architect, JVM performance engineer, to innovation leader. Holly led projects for enormous banks, tiny startups, and everything in between. Holly has used the power of cloud to understand climate risks, count fish, help a blind athlete run ultra-marathons in the desert solo, and invent stories (although not at all the same time). Holly is also a Java Champion, author, and regular keynote speaker. You can follow her on Bluesky at @holly_cummins or at hollycummins.com.

Holly Cummins is a Senior Principal Software Engineer on the Red Hat Quarkus team. Before joining Red Hat, Holly was a long time IBMer, in a range of roles from cloud consultant, full-stack javascript developer, WebSphere Liberty devops architect, JV... Show more

Jean Bisutti

Jean Bisutti

Jean Bisutti works for Microsoft. He is a Java Champion and has contributed to the QuickPerf and OpenTelemetry open-source projects.

Jean Bisutti works for Microsoft. He is a Java Champion and has contributed to the QuickPerf and OpenTelemetry open-source projects. Show more

Daniel Hinojosa

Daniel Hinojosa

Daniel Hinojosa is a programmer, consultant, instructor, speaker, and author. With over 20 years of experience, he does work for private, educational, and government institutions. Daniel loves JVM languages like Java, Groovy, and Scala; but also works with non-JVM languages like Haskell, Ruby, Python, LISP, C, C++. He is an avid Pomodoro Technique Practitioner and makes every attempt to learn a new programming language every year. Daniel is the author of Testing in Scala and the video of Beginning Scala Programming Video Series for O’Reilly Publishing. For downtime, he enjoys reading, swimming, Legos, football, and cooking.

Daniel Hinojosa is a programmer, consultant, instructor, speaker, and author. With over 20 years of experience, he does work for private, educational, and government institutions. Daniel loves JVM languages like Java, Groovy, and Scala; but also work... Show more

María Arias de Reyna Dominguez

María Arias de Reyna Dominguez

María Arias de Reyna is a Java Champion, geospatial enthusiast and FLOSS advocator.

She has been a community leader and core maintainer of several free and open source projects since 2004. She is currently working at Red Hat where she focuses on Middleware and leads the development of Kaoto, an Apache Camel low code and no code editor.

María is an experienced keynoter and speaker. Between 2017 and 2019 María was the elected President of OSGeo, the Open Source Geospatial Foundation which serves as an umbrella for the most used geospatial free and open source software. She is also well known as a feminist and Women In Tech activist.

María Arias de Reyna is a Java Champion, geospatial enthusiast and FLOSS advocator. She has been a community leader and core maintainer of several free and open source projects since 2004. She is currently working at Red Hat where she focuses on M... Show more

Jason Lee

Jason Lee

Jason is a Principal Software Engineer with Red Hat, where he works on the WildFly/EAP teams. He is responsible for several areas of the application server, including OpenTelemetry, Micrometer, Jakarta Faces, and Bean Validation. Prior to Red Hat, he worked at Oracle, NetSuite, and Sun Microsystems. With over 25 years of experience, he has worked with a number of programming languages (Java, Kotlin, C/C++, Javascript, and so on) in a variety of industries, with Java (and Java EE) being the primary focus for well over a decade and a half. He found Kotlin a few years ago, and has been trying to use it everywhere possible.

Jason blogs at https://jasondl.ee, and is the author of "Java 9 Programming Blueprints", has spoken at several conferences (including JavaOne, Devnexus, and JAXConf), and is the president of the Oklahoma City Java Users Group. On the personal side, he is active in his church, and enjoys playing bass guitar, running, fishing, and a variety of martial arts. He is also married to a beautiful woman, and has two boys, who, thankfully, look like their mother.

Jason is a Principal Software Engineer with Red Hat, where he works on the WildFly/EAP teams. He is responsible for several areas of the application server, including OpenTelemetry, Micrometer, Jakarta Faces, and Bean Validation. Prior to Red Hat, he... Show more

Matt Raible

Matt Raible

Matt Raible is a well-known figure in the Java community and has been building web applications for most of his adult life. For over 20 years, he has helped developers learn and adopt open source frameworks and use them effectively. He's a web developer, Java Champion, and Developer Advocate at Okta.

Matt has been a speaker at many conferences worldwide, including Devoxx Belgium, Devoxx France, Jfokus, and JavaOne. He is the author of The JHipster Mini-Book, Spring Live, and contributed to Pro JSP. He is frequent contributor to open source and a member of the JHipster development team. You can find him online at https://raibledesigns.com and @mraible on Twitter.

Matt Raible is a well-known figure in the Java community and has been building web applications for most of his adult life. For over 20 years, he has helped developers learn and adopt open source frameworks and use them effectively. He's a web develo... Show more

Miro Wengner

Miro Wengner

Miroslav Wengner is an engineer with a passion for resilient distributed systems and product quality. He is a co-author and contributor to the Robo4J project (a reactive soft real-time framework for robotics/IoT). Miro contributes to OpenJDK and participates in other open source technologies. He uses his passion for helping build resilient and scalable solutions.
Miro was selected for the Java Champions Program, recognized as a JavaOne Rockstar, and elected to the Java Community Process (JCP) as an Executive Member. Recently, Miro published his book Practical Design Patterns for Java Developers to help the community understand the benefits of new Java enhancements (https://amzn.eu/d/9ahtr3I).

In addition to his day-to-day duties as a principal engineer at OpenValue, he shares his knowledge at conferences (JavaOne, Devoxx, and so on) and in blogs. Miro believes in the Java ecosystem and helps move it forward!

Miroslav Wengner is an engineer with a passion for resilient distributed systems and product quality. He is a co-author and contributor to the Robo4J project (a reactive soft real-time framework for robotics/IoT). Miro contributes to OpenJDK and part... Show more

Edson Yanaga

Edson Yanaga

Edson Yanaga is a Java Champion and a former 7x Microsoft MVP. He is also a published author and a frequent speaker at international conferences, discussing Java, Kubernetes, Quarkus, Microservices, Cloud Computing, and DevOps.

Edson Yanaga is a Java Champion and a former 7x Microsoft MVP. He is also a published author and a frequent speaker at international conferences, discussing Java, Kubernetes, Quarkus, Microservices, Cloud Computing, and DevOps. Show more

Jorge Vargas Garcia

Jorge Vargas Garcia

Hello, I'm Jorge Vargas, a seasoned CTO with a proven record of launching successful products and enhancing user experiences. Over my career, I've led high-performing engineering and product teams that consistently met and exceeded our key objectives, all supported by meticulously defined OKRs. My core focus has always been on fostering cross-team collaboration to maximize efficiency and resource optimization.

My expertise extends to forging robust technological and business partnerships, ensuring the unwavering
reliability of our products. When it comes to technology and platform selection, I excel in finding the sweet spot between complexity and simplicity. I firmly believe that balancing scalability with operational growth is paramount. My holistic approach covers all critical facets of the organization, maintaining a 360-degree vision in all my strategic endeavors.

I'm deeply committed to propelling our company to new heights and staying on the cutting edge of
technological innovation. I eagerly anticipate the opportunity to collaborate and collectively elevate our
company's success to the next level.

Hello, I'm Jorge Vargas, a seasoned CTO with a proven record of launching successful products and enhancing user experiences. Over my career, I've led high-performing engineering and product teams that consistently met and exceeded our key objectives... Show more

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Java Champions

Java Champions are esteemed experts in the Java community, actively sharing their profound knowledge and expertise with fellow developers. This recognition is granted to individuals who have made significant contributions to the Java ecosystem through their participation in technical forums, user groups, conferences, and various events. Consequently, Java Champions often find themselves in high demand as speakers at industry events, where they generously share their insights and knowledge.

When a Java Champion includes this prestigious accolade in their speaker profile, it serves as a compelling endorsement of their expertise and credibility. Event organizers and attendees recognize the Java Champions designation as a mark of excellence in the realm of Java technology. As a result, Java Champion speakers are perceived as authoritative figures in the subjects they present, making it more likely for them to secure speaking engagements and enhancing their visibility within the community.

Beyond the personal benefits for Java Champions, such as networking opportunities and increased exposure for their work, the entire Java community stands to gain from the contributions of these distinguished speakers. By disseminating their knowledge and insights, Java Champions play a pivotal role in elevating the overall expertise and understanding within the Java community. This, in turn, contributes to the continuous improvement of products and services for the benefit of the entire Java ecosystem.