Devnexus 2025


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A developers guide to running Spring Boot applications on Open Liberty

Harry Hoots III

Harry is a Software Engineer working as the team lead on the Open Liberty Kernel team and is based at IBM's RTP Laboratory in Durham, NC.  He has 25 plus years of experience working in various IBM divisions such as Global Business Services, and the IBM Cloud and Cognitive group.  Harry holds a B.S. degree in Computer Science from North Carolina State University.  Check out this blog post to learn more about Harry's activities in open source: https://openliberty.io/blog/2021/10/07/HarryHoots_MeetTheTeam.html

Chuck Bridgham

Chuck is the development lead for WebSphere and Open Liberty Projects and is based at IBM’s RTP Laboratory in Durham, NC. Chuck has been involved in open source projects spanning 20 years including pioneering the Eclipse platform, Eclipse Web Tools Project, various Java and Node Tools for Eclipse.

Delivery Engineering

Ajuna Kyaruzi

Ajuna Kyaruzi works in Developer Relations at Datadog and cares about using software to help people sustainably run large-scale systems, focusing on Incident Managements and SLOs. She loves community building and volunteers with multiple mentorship programs aimed at helping early career folks break into tech, and ensuring they have successful careers. Previously she worked at Google as a Software Engineer on Google Maps and as a Site Reliability Engineer on Google Cloud.

Developer’s Guide to Test-Driven Development and Approval Testing

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.

Nurturing OpenJDK distribution: Eclipse Temurin Success History and Plan

Carmen Delgado

Carmen Delgado joined Eclipse Foundation as Adoptium Community Manager in October 2022 and is responsible for helping the Eclipse Adoptium working group members achieve their goals and objectives and being the bridge between their procedures and Eclipse Foundation processes and Staff. Carmen has a background in project, operations, and financial management in SMEs, non-profits, and start-ups from different industries: healthcare, Pharma, Fintech, and Tech. She also volunteers as a group manager and mentor at Step4ward, a mentoring program in Spain for women starting in the tech world.

Take the Polar Plunge: A Fearless Introduction to Apache Iceberg®

Danica Fine

Danica began her career as a software engineer in data visualization and warehousing with a business intelligence team where she served as a point-person for standards and best practices in data visualization across her company. In 2018, Danica moved to San Francisco and pivoted to backend engineering with a derivatives data team which was responsible for building and maintaining the infrastructure that processes millions of financial market data per second in near real-time. Her first project on this team involved Kafka Streams and Kafka Connect. From there, she immersed herself in the world of data streaming and found herself quite at home in the Apache Kafka and Apache Flink communities. She now leads the open source advocacy efforts at Snowflake, supporting Apache Iceberg and Apache Polaris (incubating). Outside of work, Danica is passionate about sustainability, increasing diversity in the technical community, and keeping her many houseplants alive. She can be found on X (Bluesky and Mastodon), talking about tech, plants, and baking @TheDanicaFine.

TDD: Test-Driven Development vs TAB-Driven Development

Marit van Dijk

With 20 years of software development experience in different roles and companies, Marit loves building awesome software with amazing people and making developers lives better. She enjoys learning new things as well as sharing knowledge on programming, software development, testing & test automation, and more. She has contributed to open-source projects like Cucumber and several other projects. Marit speaks at international conferences, in webinars, and on podcasts, writes blog posts and tutorials, and contributed to the book “97 Things Every Java Programmer Should Know” (O’Reilly Media).

Technical Enshittification: Why Everything in IT is Horrible Right Now and How to Fix It

Baruch Sadogursky

Baruch Sadogursky (@jbaruch) did Java before it had generics, DevOps before there was Docker, and DevRel before it had a name. He started DevRel at JFrog when it was ten people and took it all the way to a successful $6B IPO by helping engineers solve problems. Now Baruch keeps helping engineers solve problems but also helps companies help engineers solve problems. He is a co-author of the "Liquid Software" and "DevOps Tools for Java Developers" books, serves on multiple conference program committees, and regularly speaks at numerous most prestigious industry conferences, including Kubecon, JavaOne (RIP), Devoxx, QCon, DevRelCon, DevOpsDays (all over), DevOops (not a typo) and others. After a tenure of eleven years in JFrog DevRel, Baruch is the Principal Developer Productivity Engineering Advocate at Gradle.

Testing on Thin Ice: Chipping Away at Test Unpredictability

François Martin

François Martin is a senior full stack software engineer at Karakun AG, living in Switzerland. He is an active open source contributor and co-author of the two open source JavaFX frameworks WorkbenchFX and PreferencesFX, an active member of the Swiss Testing Board and he participates in the working group of Advanced and Expert level at ISTQB. He is one of the authors of the upcoming ISTQB Security Test Analyst syllabus.

Brian Demers

Brian Demers is a Developer Advocate at Gradle, a Java Champion, and an Apache Member who contributes to the Directory, Maven, and Shiro projects. He spends much of his day contributing to OSS projects by writing code, tutorials, blogs, and answering questions. In addition to typical software development, Brian also has a passion for fast builds and automation. Away from the keyboard, Brian is a beekeeper and can likely be found playing board games. You can find him on Twitter at https://twitter.com/briandemers.

The Human Factor in DevOps: Because Even Robots Need Good Teammates (Almost)

Jeremy Meiss

Jeremy is an international speaker and currently the Director of DevRel at OneStream Software, previously at CircleCI, Solace, Auth0, and XDA. With almost 30 years in Tech, covering just about every functional area, including support, system and database administration, application and web development, project management, program management, and systems analysis, Jeremy is active in the DevRel and DevOps communities, a co-creator of DevOpsPartyGames.com, and organizer for DevOpsDays Kansas City. A lover of all things coffee, community, open source, and tech, he is also house-broken, and (generally) plays well with others.

The Influential Software Engineer

Nathaniel Schutta

Nathaniel T. Schutta is a software architect and Java Champion focused on cloud computing, developer happiness and building usable applications. A proponent of polyglot programming, Nate has written multiple books, appeared in countless videos and many podcasts. He’s also a seasoned speaker who regularly presents at worldwide conferences, No Fluff Just Stuff symposia, meetups, universities, and user groups. In addition to his day job, Nate is an adjunct professor at the University of Minnesota, where he teaches students to embrace (and evaluate) technical change. Driven to rid the world of bad presentations, he coauthored the book Presentation Patterns with Neal Ford and Matthew McCullough, and he also published Thinking Architecturally and Responsible Microservices available from O’Reilly. His latest book, Fundamentals of Software Engineering, is currently available in early release.
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