Featured Speakers

Featured Speakers from 2018

Get Caught Up

Check out some of last year’s most talked about sessions on new technologies, like Core Java Platform to Containers and Microservices.

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Andres Almiray

Principal Consultant, Trivadis AG

Andres Almiray is a Java/Groovy developer and a Java Champion with more than 19 years of experience in software design and development. He has been involved in web and desktop application development since the early days of Java. Almiray is a true believer in open source and has participated on popular projects including Groovy, Griffon, and DbUnit, as well as starting his own projects (Json-lib, EZMorph, GraphicsBuilder, JideBuilder). He is a founding member of the Griffon framework and Hackergarten community event.

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Gail Anderson

Research Director, Anderson Software Group, Inc.

Gail Anderson is a Java Champion and a member of the NetBeans Dream Team. She is the director of research and founding member of the Anderson Software Group, Inc., a corporation specializing in Java, JavaFX, C++, C, Python, Perl, Linux, C#, and object-oriented design training courses. Anderson obtained her BA in linguistics from the University of California San Diego and her MA in linguistics from San Diego State University. She has developed numerous course materials for the Anderson Software Group and specializes in researching new technologies. She has conducted technical sessions and tutorials at JavaOne, Devoxx, and NetBeans Day conferences in San Francisco, Europe, and Latin America. She has also contributed articles to InformIT and DZone and is the coauthor of eight textbooks on software programming.

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Paul Anderson

President, Anderson Software Group, Inc.

Paul L. Anderson is an Oracle Developer Champion, Java Champion, and a member of the NetBeans dream team. He is the director of training and founding member of the Anderson Software Group, a leading provider of training courses in Java, JavaFX, Python, Go, Modern C++, and other programming languages. Anderson is an experienced speaker and specializes in making the technical aspects of software engineering fun and understandable. He is the coauthor of eight textbooks on software programming, including JavaFX Rich Client Programming on the NetBeans Platform. He has conducted technical sessions and hands-on labs at JavaOne and NetBeans Day conferences in San Francisco, Europe, and Latin America. Anderson has also presented sessions at Devoxx and DevNexus and is the author of LiveLesson videos on JavaFX programming and Java Reflection. For more information about him, visit asgteach.com, the Anderson Software Group on Facebook, and follow @paul_asgteach on Twitter.

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Fernando Babadopulos

CTO, Tail

Fernando Babadopulos is a software architect, entrepreneur, and enthusiast of new technologies; he was responsible for developing some of the most popular web applications in Brazil and abroad. With more than 15 years of experience with the internet, Babadopulos specializes in the creation and design of high-performance systems. He is a frequent speaker and participant in developer conferences worldwide, and also JavaOne program committee member. He holds an MS in information engineering from the Federal University of ABC and a BS in computer science from the University Center of FEI. He was recognized as Java Champion and Oracle Champion for his contributions to the Java ecosystem and is a Duke’s Choice award winner.

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Paul Bakker

Software Engineer, Netflix

Senior Software Engineer at Netflix - Co-author of "Java 9 Modularity" - Java Champion

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Andrejus Baranovskis

Chief Executive Officer and Technical Expert, Red Samurai Consulting

Andrejus Baranovskis is an Oracle ACE Director/Oracle Developer Champion and CEO and technical expert with Red Samurai Consulting, based in Lithuania. Red Samurai won the 2017 Oracle PaaS Partner Community Award for Outstanding Java Cloud Service Contribution, the 2015 Oracle Fusion Middleware Partner Community Award for Outstanding ACM/BPM Contribution, and other awards. A prolific blogger, Baranovskis shares his considerable technical expertise on Oracle JavaScript Extension Toolkit, Oracle Application Development Framework, Oracle Cloud, and machine learning.

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Adam Bien


Consultant and author Adam Bien is an expert group member for the Java EE, EJB 3.X, JAX-RS, and JPA 2.X JSRs. He has worked with Java technology since JDK 1.0 and with the web since LiveScript/Mosaic/Netscape. Bien occasionally organizes web standards and Java EE workshops at Munich’s airport (http://airhacks.com / http://airhacks.io).

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David Blevins

Founder & CEO, Tomitribe

David Blevins is founder of Tomitribe and a veteran of open source Java EE. He has been implementing and defining Java EE specifications for more than 10 years and has a strong drive to see Java EE as simple, testable, and light as Java SE. Blevins is cofounder of OpenEJB (1999), Geronimo (2003), and TomEE (2011). He is a member of the EJB 3.0, EJB 3.1, EJB 3.2, Java EE 6, Java EE 7, and Java EE 8 security expert groups, and a member of the Apache Software Foundation. Blevins is a contributing author to Component-Based Software Engineering: Putting the Pieces Together (2001, Addison-Wesley). Blevins is also a regular speaker at JavaOne, Devoxx, ApacheCon, OSCon, JAX, and other Java-focused conferences.

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Jeanne Boyarsky

Developer, CodeRanch

Jeanne Boyarsky wrote Sybex’s hugely popular Java 8 OCA and OCP certification books. She is a Java developer with 15 years’ experience and volunteers with a FIRST robotics team. In 2017, she spoke at JavaOne. Boyarsky is a distinguished toastmaster, which involves giving more than 50 public speeches. For more on Jeanne’s professional experience see http://www.coderanch.com/how-to/java/BioJeanneBoyarsky.

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John Brock

Senior Manager, Oracle

John JB Brock is a senior manager of product management at Oracle and has more than 20 years’ experience working with web application development. He is the founding PM for Oracle JavaScript Extension Toolkit. He can easily be reached at @peppertech.

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Daniel Bryant

Principal Consultant, Big Picture Tech

Daniel Bryant works as an independent technical consultant, and currently specializes in enabling continuous delivery within organizations through the identification of value streams, creation of build pipelines, and implementation of effective testing strategies. His technical expertise focuses on DevOps tooling, cloud/container platforms, and microservice implementations. He also contributes to several open source projects, writes for InfoQ, O’Reilly, and Voxxed, and regularly presents at international conferences such as OSCON, QCon, and JavaOne.

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Sharat Chander

Director of Product Management, Oracle

Sharat Chander has worked in the IT industry for 20 years for firms including Bell Atlantic, Verizon, Sun Microsystems, and Oracle. His background and technical specialty is in Java development tools, graphics design, and product/community management. Chander has been actively involved in the Java community for 15 years, helping drive greater Java awareness, acceptance, adoption, and advocacy. As Oracle’s director of Java developer relations, Chander serves as the JavaOne conference content chairperson, driving the technical content strategy and Java community involvement in the conference. He is a frequent keynote speaker and participant in developer programs worldwide. Chander holds a BS in corporate finance from the University of Maryland and an MBA in international business from Loyola College, Maryland. You can often find Chander at global developer events and Java community engagements. When not growing visibility for Java, he follows his passion for baseball, actively coaching his 10-year-old son’s Little League team and fanatically following his hometown Baltimore Orioles.

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Stephen Chin

Director, Oracle Developer Community, Oracle

Stephen Chin is director of the Oracle Developer Community, author of Raspberry Pi with Java, co-author of Pro JavaFX Platform, and Oracle Code One content chair. He has given keynotes at numerous Java conferences around the world including JavaOne, where he is a seven-time Rockstar award recipient. Chin is an avid motorcyclist who has done several pan-European evangelism tours, interviewing hackers in their natural habitat and posting the videos on http://nighthacking.com/. When he is not traveling, he enjoys teaching kids how to create embedded systems, and robot programming with his teenage daughter.

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Roberto Cortez

Senior Software Engineer, Tomitribe

Roberto Cortez is a passionate Java developer with more than 10 years of experience mainly the finance sector. He is involved within the open source community to help other individuals spread the knowledge about Java EE technologies. He is a regular speaker at conferences including JavaOne, Devoxx, JFokus, and others, and he leads the Coimbra JUG and enjoys writing blog posts. He is very excited to be a Triber; he now has the opportunity to work on the servers where everything happens, instead of just developing applications that run in a container. When he is not working, he hangs out with friends, plays computer games, and spends time with family.

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Doug Cutting

Cocreator of Hadoop

Doug Cutting serves as chief architect of Cloudera. He also serves as an advisor of Proximal Labs. Cutting founded Apache Hadoop, Nutch, and Lucene projects. He served three years at Yahoo!. Prior to that, he served at Excite, Apple, and Xerox PARC. Cutting serves as chairman of the technical advisory board at LucidWorks, Inc. He also serves as chairman and member of technical advisory board at Lucid Imagination. He has been member of advisory board at NGDATA since 2013, and he serves as a member of Lucene and a member of the Apache Software Foundation. He has a bachelor's degree in linguistics from Stanford University.

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Sebastian Daschner

Developer, IT-Beratung

Sebastian Daschner is a self-employed Java consultant, author and trainer and is enthusiastic about programming and Java (EE). He is the author of the book ’Architecting Modern Java EE Applications’. Sebastian is participating in the JCP, helping forming the future standards of Java EE, serving in the JAX-RS, JSON-P and Config Expert Groups and collaborating on various open source projects. For his contributions in the Java community and ecosystem he was recognized as a Java Champion, Oracle Developer Champion and double 2016 JavaOne Rockstar. Besides Java, Sebastian is also a heavy user of Linux and container technologies like Docker. He evangelizes computer science practices on https://blog.sebastian-daschner.com, his newsletter, and on Twitter via @DaschnerS. When not working with Java, he also loves to travel the world—either by plane or motorbike.

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Diane Davis

Principal Systems Engineer, a.i. solutions, Inc.

Dr. Diane Davis is an astrodynamicist and principal systems engineer with NASA and USAF aerospace industry leader a.i. solutions. She designs spacecraft orbits with the Future Capabilities team at Johnson Space Center in Houston, TX, and previously navigated a spacecraft to Mars and comets at the Jet Propulsion Laboratory. She is the lead researcher for the Deep Space Trajectory Explorer, a JavaFX-based design and visualization software for interplanetary orbit analysis.

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Vladimir Dejanovic

Founder, AmsterdamJUG

Vladimir Dejanovic is the founder and leader of AmsterdamJUG and an IT consultant, software architect, team lead and chapter lead. He as been working in the IT industry since 2006, developing high-performance software in multiple programming languages and technologies, from desktop to mobile and web with high-load traffic. Dejanovic enjoys developing software in Java and JavaScript; however, he also wrote code in Scala, C++, C, PHP, Go, Objective-C, Python, R, Lisp, and many others. He is interested in free and open source software, and has given talks at conferences including JavaOne, Devoxx BE, Devoxx US, Devoxx PL, Devoxx MA, Devoxx FR, JavaLand, GeeCON, Java Day Istanbul, Java Day Minks, Codemotion Amsterdam, JDK.IO, JBCNConf, Voxxed Days Bristol, Voxxed Days Bucharest, Voxxed Days Belgrade, Voxxed Days Cluj-Napoca, GeeCon Krakow, HeapCon, and others.

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Bert Ertman

Fellow, Luminis

Bert Ertman is a fellow and director of technology outreach at Luminis. He is a frequent speaker on Java, cloud, and software architecture all over the world. Ertman is an author and serial conference organizer. He was awarded the coveted title of Java Champion in 2008, and is a JavaOne Rockstar speaker and Duke’s Choice award winner.

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Viktor Gamov

Solutions Architect, Confluent

Viktor Gamov is a solution architect at Confluent, the company behind the popular Apache Kafka streaming platform. Gamov has comprehensive knowledge and expertise in enterprise application architecture leveraging open source technologies. He enjoys helping organizations build low-latency, scalable, and highly available distributed systems. He is also co-organizer of the Princeton Java user group and is a co-author of O’Reilly’s Enterprise Web Development. He is a professional conference speaker on distributed systems, Java, and JavaScript topics, and is a regular at the most prestigious events including JavaOne, Devoxx, OSCON, Qcon, and others. He blogs at http://gamov.io and produces the podcasts Razbor Poletov (in Russian) and DevRelRad.io.

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Trisha Gee

Developer Advocate, JetBrains

Trisha Gee has developed Java applications for a range of industries including finance, manufacturing, software, and nonprofit, for companies of all sizes. She has expertise in Java high-performance systems, is passionate about enabling developer productivity, and dabbles with open source development. Gee is a leader of the Sevilla Java user group and a Java Champion; she believes healthy communities and sharing ideas help us to learn from mistakes and build on successes. As a developer advocate for JetBrains, she gets to share all the interesting things she’s constantly discovering.

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Timothy Hall

DBA, Developer, Author, Trainer, oracle-base.com

Tim Hall is an Oracle DBA/developer and well-known Oracle blogger at https://oracle-base.com. He is the author of two books and more than 800 articles, and he is an Oracle ACE Director, Oracle Developer Champion, and an OakTable member who has presented at numerous user groups and conferences worldwide.

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Mark Heckler

Principal Technologist/Developer Advocate, Pivotal

Mark Heckler is a pivotal principal technologist and Spring developer advocate. He is a conference speaker, published author, and Java Champion focusing on developing innovative production-ready software at velocity for cloud and IoT applications. He has worked with key players in the manufacturing, retail, medical, scientific, telecom, and financial industries, as well as various public sector organizations to develop and deliver critical capabilities on time and on budget. He is an open source contributor and author/curator of a developer-focused blog (thehecklers.com) and has an occasionally interesting Twitter account (@mkheck).

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Marcus Hirt

Consulting Member of Technical Staff, Oracle

Marcus Hirt is one of the founders of Appeal Virtual Machines, the company that created the JRockit JVM. He is currently working in the Java product group at Oracle. He used to enjoy coding on his many pet projects, composing music, and scuba diving in his spare time; now he has toddler twins. Hirt has contributed articles, white papers, tutorials, and webinars to the Java community, and has been an appreciated speaker at various conferences. He also coauthored a book about JVM technology. He holds an MSc in computer science and engineering from the Royal Institute of Technology in Stockholm.

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Michael Hüttermann

Principal DevOps Consultant

Michael Hüttermann is a principal DevOps consultant and the author of the books DevOps for Developers (2012), and Agile ALM (2011). He was recognized as an Oracle Java champion in 2006 and Oracle developer champion in 2017.

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Lucas Jellema

CTO, AMIS Services BV

Lucas Jellema is a well-known speaker at conferences in the Oracle and Java community including JavaOne, Devoxx, and Oracle OpenWorld. He is the author of two books, many articles, and more than 1,500 blog posts. He is chief technology officer at AMIS, an Oracle partner in the Netherlands.

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Heinz Kabutz

CIO/CTO, JavaSpecialists.EU

Dr. Heinz Kabutz writes the popular The Java Specialists’ Newsletter read by tens of thousands of enthusiastic fans in more than 140 countries. To subscribe, visit javaspecialists.eu.

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Bill Karwin

Database Developer, Square Inc.

Bill Karwin has many years of experience as a database developer, consultant, and trainer, and he is the author of the popular book, SQL Antipatterns: Avoiding the Pitfalls of Database Programming. Throughout his career, Karwin has shared his knowledge to help other programmers achieve success and productivity. He has answered thousands of questions, giving him a unique perspective of the SQL mistakes that most commonly cause problems.

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Ellen Kraffmiller

Senior Software Engineer, Harvard University

Ellen Kraffmiller is a software engineer with more than 20 years of experience designing and developing Java applications. At the Institute for Quantitative Social Science, she developed data analysis tools using distributed computing, machine learning, and natural language processing. She has been a frequent JavaOne speaker since 2011.

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Justin Lee

Principal Software Engineer, Red Hat

Justin Lee, a Java Champion, has been programming in Java since 1996. He has worked on virtually every level of the application stack, from database drivers all the way to application servers. A long-time advocate of Java, he has spoken at conferences and user groups all across the US and Europe. He is an active open source community member, contributing when and where he can. He can be found on Twitter and GitHub as @evanchooly.

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Mark Little

Red Hat, Inc.

Mark Little leads the technical direction, research, and development for Red Hat JBoss Middleware. Prior to taking over this role in 2008, he served as the SOA technical development manager and director of standards. Additionally, he was a chief architect and cofounder at Arjuna Technologies, a spinoff from HP, where he was distinguished engineer. He has worked in the area of reliable distributed systems since the mid 80s and holds a PhD in fault-tolerant distributed systems, replication, and transactions. Little is also a professor at Newcastle University and Lyon University.

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Jessica Man

Vice President, Goldman Sachs

Jessica Man started her career as a JVM developer at IBM. In 2010 she joined Goldman Sachs, where she was the technical lead for the Java Engineering team, taking care of the Java runtime environment and ecosystem for the firm. In 2017 she took on the global leader role for the Application Monitoring team, providing tools, services, and support for monitoring at application level for all Java applications across the firm. In September 2018 she took on a new role in the Site Reliability Engineering team, primarily focusing on monitoring.

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Simon Maple

Director of Developer Advocacy, Snyk

Simon Maple is the director of developer relations at Snyk. He has been a Java Champion since 2014, was a JavaOne Rockstar speaker in 2014, a Duke’s Choice award winner, a virtual JUG founder and organizer, and a London Java community coleader. He is an experienced speaker, having presented at JavaOne, JavaZone, Jfokus, DevoxxUK, DevoxxFR, JavaLand, JMaghreb, and many more including many JUG tours. His passion is around user groups and communities. When not traveling, Maple enjoys spending quality time with his family, cooking, and eating great food.

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Stuart Marks

Principal Member of Technical Staff, Oracle

Stuart Marks is a principal member of the technical staff in the Java Platform group at Oracle. He is currently working on a variety of JDK core libraries projects, including Collections, Lambda, and Streams, as well as improving test quality and performance. As his alter ego “Dr. Deprecator,” he works on the Java SE deprecation mechanism. He has previously worked on JavaFX and Java ME at Sun Microsystems. He has more than 20 years of software platform product development experience in the areas of window systems, interactive graphics, and mobile and embedded systems. Marks holds a master’s degree in computer science and a bachelor’s degree in electrical engineering from Stanford University.

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Elder Moraes

Cloud Evangelist, Oracle

Elder Moraes helps server-side developers work on great projects by building and delivering secure, available, and fast applications. With many years of Java Platform, Enterprise Edition development experience, he is an active participant of the Jakarta EE discussions. He is also the author of The Java EE 8 Cookbook, which provides in-depth information about Java EE 8 APIs and how to use them to solve real enterprise problems. Host of the JavaEE 8: The Next Frontier videocast, Moraes is passionate about Java, cloud, and systems architecture. As a cloud evangelist, he inspires people to adopt Java Platform, Enterprise Edition by sharing experiences and best practices online and at international events including JavaOne, Oracle Code, TDC, QCon, and Campus Party.

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Fabiane Nardon

Director, TailTarget

Fabiane Nardon is a computer scientist who is passionate about creating software that will positively change the world we live in. She was chief architect of the Sao Paulo Healthcare Information System, considered the largest Java EE application in the world and winner of the 2005 Duke’s Choice award. She led several communities, including the JavaTools community at java.net, where more than 800 open source projects were born. She is a frequent speaker at conferences in Brazil and abroad, including JavaOne, OSCON, Jfokus, DockerCon, JustJava, QCon, and more. She’s also the author of several technical articles and a member of the program committee of several conferences including JavaOne, OSCON, TDC, and QCon. She was chosen a Java Champion by Sun Microsystems in recognition of her contribution to the Java ecosystem. Currently, she works as a chief scientist at Tail where she is helping to shape new disruptive data-science-based services.

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Neha Narkhede

Cofounder and CTO of Apache Kafka

Neha Narkhede is the cofounder and head of engineering at Confluent and the cocreator of Apache Kafka. Previously, Narkehede worked in the streams infrastructure area at LinkedIn. Narkehede’s interests include building and scaling large-scale distributed systems. In her free time, she travels and tries her hand at photography.

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Charles Nutter

Coleader of JRuby

Charles Nutter has been programming most of his life, as a Java developer for the past decade and as a JRuby developer for more than six years. He coleads the JRuby project, an effort to bring the beauty of Ruby and the power of the JVM together. Nutter believes in open source and open standards and hopes his efforts on JRuby and other languages will ensure the JVM remains the preferred open source managed runtime for many years to come.

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Pratik Patel

CTO, TripLingo

Pratik Patel is a Java Champion and a director of the Atlanta JUG. He is the author of Java Database Programming with JDBC, published in 1996 for Enterprise Java. He has been a speaker at numerous conferences and has participated in various local technology groups and start-up organizations. He is currently CTO of TripLingo in Atlanta.

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Kirk Pepperdine

Director, Kodewerk Ltd.

Kirk Pepperdine cofounded jClarity, a company dedicated to producing the next generation of smart performance diagnostic tooling. In addition, he provides Java performance–related services and training. Pepperdine has been performance tuning Java applications since 1998. Prior to that he developed applications and hardware that included small devices attached to sheep, and devices attached to supercomputing platforms. Pepperdine has written many articles and speaks regularly at conferences on the subject of performance tuning. He helped evolve javaperformancetuning.com into a premier resource for performance-tuning information.

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José Pereda

Software Engineer, Gluon

José Pereda earned a PhD in structural engineering and works as a software engineer at Gluon. He was named a JavaOne Rockstar and is a NetBeans Dream Team member. He has worked with Java since 1999 and he is a JavaFX advocate, developing JavaFX applications for mobile and embedded platforms. Pereda also works on open source projects (JFXtras, FXyz, https://github.com/jperedadnr), coauthored JavaFX 8 Introduction by Example, blogs at http://jperedadnr.blogspot.com.es/, and speaks at conferences including JavaOne, JAX, JFokus, JavaLand, JCrete, and JBCNConf. He lives with his wife and kids in Valladolid, Spain, and tweets as @JPeredaDnr.

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Sean Phillips

Principal Software Engineer, a.i. Solutions, Inc.

Sean M. Phillips is a Java and Oracle Developer Champion and a principal software engineer with NASA and USAF aerospace industry partner a.i. Solutions. Phillips’s specialties are data analysis and visualization using Java and JavaFX, backed by cloud resources. He created the Deep Space Trajectory Explorer (DSTE) software, a 2017 Duke’s Choice award winner. The DSTE is currently used for trajectory design for the new lunar orbital platform and contingency analysis for the James Webb space telescope.

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Matt Raible

Developer Advocate, Okta

Matt Raible is a well-known figure in the Java community and has been building web applications for most of his adult life. For more than 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. Raible has been a speaker at many conferences worldwide, including Devoxx Belgium, Devoxx France, Jfokus, the NoFluff Just Stuff Tour, 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 projects and a member of the JHipster development team. You can find him online at raibledesigns.com and @mraible on Twitter.

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Chris Richardson

Software Craftsman, Eventuate, Inc.

Chris Richardson is a developer, architect, and Java Champion. He is the author of POJOs in Action, which describes how to build enterprise Java applications with frameworks such as Spring and Hibernate. Richardson was also the founder of the original CloudFoundry.com, an early Java PaaS for Amazon EC2. Today, he is a recognized thought leader in microservices. Richardson is the creator of microservices.io, a website describing how to develop and deploy microservices, and he is the author of the forthcoming book Microservice Patterns. He provides microservices consulting and training and is working on his third startup, eventuate.io, an application platform for developing microservices.

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Simon Ritter

Deputy CTO, Azul Systems

Simon Ritter is the deputy CTO of Azul Systems. He has been in the IT business since 1984 and holds a Bachelor of Science degree in physics from Brunel University in the UK. Ritter joined Sun Microsystems in 1996 and started working with Java technology at 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, Java for client applications, and embedded Java. Now at Azul, he continues to help people understand Java as well as Azul’s JVM technologies and products. Ritter has twice been awarded Java Rockstar status at JavaOne and is a Java Champion. He currently represents Azul on the JCP Executive Committee and on the Java SE Expert Group (JSR 379, 383, and 384).

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Graeme Rocher

Product Lead, Grails and Micronaut Principal Software Engineer at Object Computing

Graeme Rocher is a software engineer and professional open source contributor who created several popular open source projects including Grails, GORM, and Micronaut. Rocher currently leads the development of the Grails and Micronaut frameworks at OCI and is the author and/or co-author of several books including The Definitive Guide to Grails 2 (Apress).

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Guido van Rossum

Creator of Python

Guido van Rossum is the creator of Python, one of the major programming languages on and off the web. The Python community refers to him as the Benevolent Dictator for Life, a title seemingly from a Monty Python skit. He moved from the Netherlands to the USA in 1995, where he met his wife. Until July 2003 they lived in the northern Virginia suburbs of Washington, DC with their son Orlijn, who was born in 2001. They then moved to Silicon Valley where Van Rosen worked for a variety of companies including Google and Dropbox (spending 50 percent of his time on Python).

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Sven Ruppert

Developer Advocat, Vaadin GmbH

Sven Ruppert has worked with Java since 1996. He is an Oracle Developer Champion, a developer advocate, and a speaker, helping developers worldwide grow their business.

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Georges Saab

Vice President of Development, Oracle

Georges Saab is the vice president of development for the Java Platform Group at Oracle. His group is responsible for Java Standard Edition including the Java language, core libraries, and the Java Virtual Machine. Georges is a veteran of programming language and platform development, with more than 25 years in this field. His work with the Java platform began as a developer of Java Standard Edition at JavaSoft and Sun Microsystems, where he was a founder of the Swing group and Java Webstart, and continued as he ran development of the JRockit JVM for many years at BEA Systems. Georges is the Chairperson of the OpenJDK governing board.

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Baruch Sadogursky

Developer Advocate, JFrog

Baruch Sadogursky is a developer advocate at JFrog. He writes code around the JFrog platform and its ecosystem, and speaks and blogs about it all. Sadogursky is @jbaruch on Twitter and his blogs can be read at jfrog.com/blog/ and blog.bintray.com. He is a professional conference speaker on DevOps, Java, and Groovy topics, and is a regular at the industry’s most prestigious events including JavaOne (where he was awarded a Rockstar award), Devnexus, DockerCon, Devoxx, DevOps Days, OSCON, Qcon, and many others.

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Paul Sandoz

Consulting Member of Technical Staff

Paul Sandoz is a reformed RESTerfarian who previously co-led JAX-RS and led the implementation of Jersey. He moved up into the clouds with the industrious bees of CloudBees, and then boomeranged back to Oracle to work on Java.

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Bert Jan Schrijver

Software craftsman at JPoint, CTO at OpenValue

Bert Jan Schrijver is a software craftsman at JPoint in the Netherlands and CTO at OpenValue. He focuses on Java, continuous delivery, and DevOps. He is also a Java Champion, Developer Champion, JavaOne Rockstar speaker, and the leader of NLJUG, the Dutch Java user group. He loves to share his experience by speaking at conferences, writing for the Dutch Java magazine, and helping Devoxx4Kids by teaching kids how to code. He is easily reachable on Twitter at @bjschrijver.

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Venkat Subramaniam

CEO, Agile Developer

Dr. Venkat Subramaniam is an award-winning author, founder of Agile Developer, Inc., creator of agilelearner.com, and an instructional professor at the University of Houston. He has trained and mentored thousands of software developers in the US, Canada, Europe, and Asia, and is a regularly-invited speaker at several international conferences. Venkat helps his clients effectively apply and succeed with sustainable agile practices on their software projects. Venkat is a coauthor of multiple technical books, including the 2007 Jolt Productivity award winning book Practices of an Agile Developer. You can find a list of his books at agiledeveloper.com. You can reach Venkat by email at venkats@agiledeveloper.com or on Twitter at @venkat_s.

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Mohamed Taman

Senior Enterprise Architect/Senior Software Engineer, WebCentric

Mohamed Taman is a senior enterprise architect and senior software engineer at WebCentric. He is also a Java Champion and an Oracle Developer Champion. He has been a JCP executive committee member; a JSR 354, 363, and 373 expert group member; an EGJUG leader; and an Oracle Egypt Architects Club board member. He is an international speaker and the author of JavaFX Essentials, Getting Started with Clean Code, Java SE 9, and Hands-on Java 10 Programming with JShell. Taman won Duke’s Choice awards in 2015 and 2014, and a JCP outstanding adopt-a-jar participant award in 2013.

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Bob Treacy

Systems Architect, Harvard University

Bob Treacy holds a Master of Science degree in computer science from Boston University. He is a Sun Certified Java EE Architect and Oracle Certified Web Services Developer. He has presented at JavaOne and Devoxx on Java EE, Scala, and Spark. He began working at Harvard 11 years ago when the Dataverse project began and now works on the Consilience project, which involves text analysis of large document sets. He has been working with Java since 1995 and attended  20 JavaOne conferences. Aside from software development, Treacy is a certified kettlebell instructor as a StrongFirst Girya Level II.

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Ray Tsang

Developer Advocate, Google

Ray Tsang has extensive hands-on cross-industry enterprise systems integration delivery and management experience. He built mobile applications and micropayment systems as an independent contractor, and built IT systems for the Taiwanese government for a large-scale search engine, electronic customs record management, and more. At Accenture, Tsang was a team lead for a SOA deployment at a utilities company, building out common frameworks for messaging and service tracing. He was also an architect, leading teams to implement online booking channels for a global hospitality company. During his time at Red Hat, he was specialized in Java middleware, and contributed to open source projects such as Infinispan. Tsang is currently a developer advocate at Google. Follow him on Twitter @saturnism.

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James Weaver

Quantum Developer Advocate, IBM

James Weaver is a Java developer, author, and speaker with a passion for cloud native applications, machine learning, and quantum computing. He is a Java Champion and a JavaOne Rockstar. Weaver has written books including Inside Java, Beginning J2EE, the Pro JavaFX series, and Java with Raspberry Pi. As a pivotal developer advocate, Weaver speaks internationally at software technology conferences. He tweets as @JavaFXpert, blogs at JavaFXpert.com and CulturedEar.com, and can be reached at jweaver@pivotal.io.

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Johan Vos

CTO, Gluon

Johan Vos started working with Java in 1995. He was part of the Blackdown team, porting Java to Linux. His main focus is on end-to-end Java, combining back-end systems and mobile/embedded devices. He received a Duke’s Choice award in 2014 for his work on JavaFX on mobile. In 2015, he cofounded Gluon, which allows enterprises to create mobile Java client applications leveraging their existing back-end infrastructure. Gluon received a Duke’s Choice award in 2015. Vos is a Java Champion, a member of the BeJUG steering group, the Devoxx steering group, and JCP. He is the lead author of Pro JavaFX 8, and he has been a speaker at numerous conferences on Java.

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Patrycja Wegrzynowicz

CTO, Yonita, Inc.

Patrycja Wegrzynowicz is a software visionary and expert specialized in automated software engineering and Java technologies. She is the founder and CTO of Yon Labs and Yonita, a startup focused on automated detection and refactoring of software defects, including security vulnerabilities, performance and concurrency antipatterns, and database issues. Wegrzynowicz is a regular speaker at major academic as well as industrial conferences, including JavaOne, Devoxx, JavaZone, OOPSLA, ASE, and others. She has been named one of the Top 10 Women in Tech in Poland 2016 by Girls in Tech. Her interests focus on patterns and antipatterns in software along with automated software engineering, particularly static and dynamic analysis techniques to support program verification, comprehension, and optimization.

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Luis Weir

Principal Oracle ACE Director, Capgemini UK Plc

Father, author, blogger, speaker, Oracle Developer Champion and ACE Director, Luis Weir is the CTO for Capgemini’s Oracle DU and a global evangelist on the topics of APIs, microservices, and PaaS in general. He is very passionate about modern technologies, and he has more than 15 years of experience implementing complex systems in many parts of the world. He is the coauthor of three books and sole author of Enterprise API Management, as well as many articles and white papers. Weir is a frequent speaker at events such as JavaOne and Oracle Code, most recently in London, Beijing, Sydney, and San Francisco. He holds an MS in systems integrations from Universitat Politecnica de Valencia and a BS in electronics engineering from UNE.

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Geertjan Wielenga

Oracle Senior Principal Product Manager, Oracle

Geertjan Wielenga has been promoting open source software since 2004, first within Sun Microsystems and currently as a product manager in Oracle, primarily focused on the NetBeans ecosystem and Oracle JavaScript Extension Toolkit. He presents at conferences, contributes to books and online journals, and blogs daily at blogs.oracle.com/geertjan.