Devnexus 2024

Join the <dev/>olution


Apache Pinot Real-Time Analytics Workshop

Viktor Gamov

Viktor Gamov is the Head of Developer Advocacy at StarTree, a pioneering company in real-time analytics based on Apache Pinot. With a rich background in implementing and advocating for distributed systems and cloud-native architectures, Viktor excels in open-source technologies. As a Java Champion and an esteemed speaker, Viktor is known for his insightful presentations at top industry events like JavaOne, Devoxx, Kafka Summit, and QCon. His expertise spans distributed systems, real-time data streaming, JVM, and DevOps. Viktor has co-authored "Apache Kafka® in Action" from Manning. Follow Viktor on X - @gamussa to stay up to date with Viktor's latest thoughts on technology, his gym and food adventures, and insights into open-source and developer advocacy.

Tim Berglund

Tim is a teacher, author, and technology leader with StarTree, where he serves as the Vice President of Developer Relations. He is a regular speaker at conferences and a presence on YouTube explaining complex technology topics in an accessible way. He tweets as @tlberglund, blogs every few years at, and lives in Littleton, CO, USA. He has three grown children and two grandchildren, a fact about which he is rather excited.

Architectural Design Patterns Deep Dive

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.

Building RESTful Web Services with Jakarta EE

Kenneth Fogel

Ken is a Java Champion and member of the java Community Process Executive Committee. He is also the organizer of the annual JChampions Conference, He retired from the classroom after 31 years teaching software development at Dawson College, 25 of those years as the chair and program coordinator of the Computer Science Technology Program. He is currently a Research Scholar in Residence at the college. His first book, Transitioning to Java, was recently published by Packt. He has spoken at numerous conferences. His recent project has been the development of a Jakarta REST 3.1 workshop for the Eclipse Foundation.

Ivar Grimstad

Ivar Grimstad is the Jakarta EE Developer Advocate at Eclipse Foundation. He is a Java Champion and JUG Leader based in Sweden. Besides advocating the Jakarta EE technologies, Ivar is contributing to the Jakarta EE specifications as well as being the PMC Lead for Eclipse Enterprise for Java (EE4J). He is also one of the specification leads for Jakarta MVC and represents Eclipse Foundation in the JCP Executive Committee. Ivar is also involved in MicroProfile, Apache NetBeans, and a wide range of other open-source projects and communities. He is a frequent speaker at International developer conferences.

Cruising Along with Java: Making use of the Modern Features

Venkat Subramaniam

Dr. Venkat Subramaniam is an award-winning author, founder of Agile Developer, Inc., creator of, 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 (co)author 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 You can reach him by email at or on twitter at @venkat_s.

Fundamentals of Migration Engineering with OpenRewrite

Jonathan Schneider

Jonathan is co-founder and CEO at Miami-based Moderne which automates software maintenance activities at scale. He founded OpenRewrite at Netflix and went on to found the Micrometer project as a member of the Spring Team. Jonathan is the author of “SRE with Java Microservices” (O’Reilly). He is an Army veteran and two time bronze star recipient.

Olga Kundzich

Co-founder at Moderne. Previously, Product Manager for Spinnaker at Pivotal and enterprise data protection at Dell EMC .

Gain new supersonic, subatomic superpowers with Quarkus 3

Daniel Oh

Daniel Oh is Java Champion and Senior Principal Developer Advocate at Red Hat to evangelize developers for building cloud-native apps and serverless ob Kubernetes ecosystems. He's also contributing to various cloud open-source projects and ecosystems as a CNCF ambassador for accelerating DevOps adoption in enterprises. He's speaking at lots of technical seminars, workshops, and meetups to elaborate on new emerging technologies for enterprise developers & DevOps teams.

Spring Boot 3 Workshop

Jonatan Ivanov

Jonatan Ivanov is an enthusiastic Software Engineer, member of the Spring Engineering Team, maintainer of Micrometer, one of the leaders of the Seattle Java User Group, speaker, author, certified dragon trainer. He has hands-on experience in developing and shipping innovative, production-ready software for industry-leader companies. He likes Distributed Systems, Production, Open Source, Math, Linux, Cloud environments; he is passionate about the Java Ecosystem and the Java Community. He is an Open Source contributor, writes a “develotters”-focused blog (, sometimes can be found on Twitter(@jonatan_ivanov) and in the Seattle area.

Scott Frederick

Scott is a Software Engineer at Broadcom, working on Spring Boot and other Spring projects.

The Ultimate One-Day Java Workshop: Secure, High-Performance Deployment to Kubernetes and Serverless

Steve Poole

Developer Advocate,Security Champion, DevOps practitioner (whatever that means) Long time Java developer, leader and evangelist. I’ve been working on Java SDKs and JVMs since Java was less than 1. Also had time to work on other things including various JSRs, being a committer on various open source projects including ones at Apache, Eclipse and OpenJDK. A seasoned speaker and regular presenter at international conferences on technical and software engineering topics.