This year's speakers

Alina Yurenko

Alina Yurenko

Developer advocate for GraalVM at Oracle Labs

Alina Yurenko is a developer advocate for GraalVM at Oracle Labs, a research & development organization at Oracle. She loves both programming and natural languages, compilers, and open source.

Brian Benz

Brian Benz

Java Champion and a Cloud Advocate at Microsoft

Brian is a Java Champion and a Cloud Advocate at Microsoft, helping developers get the most out of Azure. Before Joining Microsoft, he was a program manager, evangelist, solution architect, consultant, developer, and author at IBM, Deloitte, and other companies. Find him on Twitter @bbenz. A current list of Brian's talks can be found at https://aka.ms/brianspeaking.

Bruno Borges

Bruno Borges

Principal Program Manager, Microsoft

Greetings, I’m Bruno, a Brazilian living in Vancouver, Canada. I’m a Product Manager at Microsoft. We help Microsoft internal teams and Azure customers to optimize Java workloads for better performance and lower cost. We also ship the Microsoft Build of OpenJDK. Before that I was on Azure DevRel, a Cloud Developer Engagement PM at Oracle, and a Java developer at heart. But most importantly, I'm opinionated!.

Brian Spendolini

Brian Spendolini

Sr. Product Manager, Microsoft

Brian is a Senior Product Manager at Microsoft, with a concentration in databases and cloud services resulting in the ability to architect, maintain, and successfully deploy large enterprise grade applications and reporting platforms.

Carlos Gauto

Carlos Gauto

Project Leader, Mercado Libre

Charly is an IT Project Leader with more than 17 years of experience, he worked as QA Automation Manager leading services in LATAM and USA. He is also a speaker, Playwright Ambassador, K6 Champion, BrowserStack Champion and Test Automation related content creator.

Cesar Soares

Cesar Soares

Senior Compiler Engineer, Microsoft

I am a seasoned professional in computer science, holding a Bachelor's, a Master's, and a Ph.D. in the field. With a total industry experience of 10 years, I have developed a deep expertise and understanding in various aspects of computer science. In addition to my academic experience, while being a member of Microsoft Java Engineering Group, I have been an active contributor to OpenJDK for the past 3 years. This combination of theoretical knowledge and practical skills makes me a well-rounded and valuable asset in the tech community.

Dan Haywood

Dan Haywood

Consultant, Haywood Associates Ltd.

Dan Haywood is an independent consultant most known for his work on domain-driven design and the naked objects pattern. He is a committer on Apache Causeway, a Spring Boot-based framework for building line-of-business applications, and also an ASF member.

Daniel Kec

Daniel Kec

Helidon developer, Oracle

Daniel is a Java Developer for fifteen years now. Currently working at Oracle on Helidon project which enabled him to tinker with the coolest open source technologies. While working on Reactive Operators, Reactive Messaging and Long Running Actions for Helidon was fun, working with Loom features opens another chapter for otherwise passionate reactive devotee.

Daniel Oh

Daniel Oh

Senior Principal Developer Advocate at Red Hat

Daniel Oh is a 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.

Emily Jiang

Emily Jiang

Cloud Native Architect and Chief Advocate at IBM

Emily Jiang is a Java Champion. She is Liberty Cloud Native Architect and Chief Advocate, Senior Technical Staff Member (STSM) in IBM, based at Hursley Lab in the UK. Emily is a MicroProfile guru and has been working on MicroProfile since 2016 and leads a number of specifications including MicroProfile Config and Fault Tolerance. She interacts with most of the other MicroProfile specifications. She is also active in Jakarta EE specifications. She is a co-lead in Jakarta Config and also a Jakarta Context and Dependency Injection (CDI) committer. At IBM, she leads the effort of implementing all of MicroProfile specifications on Open Liberty.

Josh Long

Josh Long

Spring Developer Advocate at Broadcom

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.

Julia Liuson

Julia Liuson

President of Microsoft's Developer Division and GitHub

Julia Liuson is President of Microsoft’s Developer Division where she leads the technical and business strategy, product development and engineering teams for Visual Studio, Visual Studio Code, all Microsoft programming languages and runtime (.NET and C#, TypeScript, OpenJDK, C++, Python and more), Azure DevOps, Azure SDKs, and Azure Application Development PaaS and Serverless offerings. She also manages GitHub as an independent operating entity.

Lize Raes

Lize Raes

Software Engineer at Open Tide

Lize Raes is a Senior Software Engineer and Head of AI at a Swiss company specializing in software for drug discovery and gene technology. In parallel, she develops LLM-powered apps and is a core member of the LangChain4j team. Lize loves using technology to solve societal issues. This has driven her in the past to work as a cochlear implant researcher at Ghent University, to develop a COVID-19 prognosis model and advise the Belgian government, and to engage as a committee member for the CNCF + UN hackathon. In her free time, you will find her behind the piano or in her woodworking atelier.

Loiane Groner

Loiane Groner

Citibank | GDE | MVP | Java Champion | Oracle ACE

Loiane Groner is a Development Manager at Citibank and has authored books for Packt Publishing. Google Developer Expert in Angular, Microsoft MVP in Developer Technologies, Oracle ACE, and Java Champion. In her spare time, she loves contributing to the community, and she publishes tech videos on Youtube and creates free programming courses at https://loiane.training.

Manish Sharma

Manish Sharma

Principal Program Manager, Microsoft

Manish is a seasoned professional with over 19 years of industry experience. He has worked with various technologies including Oracle, Marklogic, MongoDB, Redis Cache, Lucene & Solr, and is currently part of the Azure Cosmos DB Engineering team. He is also the author of “Cosmos DB for MongoDB Developers” published by Apress. Additionally, he is a certified AWS & Azure Solution Architect and a PMP Professional.

Mark Heckler

Mark Heckler

Principal Cloud Developer Advocate for Java/JVM Languages at Microsoft

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 Pollack

Mark Pollack

Spring Engineer at Broadcom

Dr. Mark Pollack has been involved with the Spring (Java) framework since 2003, contributing JMS functionality. He is the founder and technical lead of the Spring CLI and Spring AI projects, focusing on improving Java application development with an emphasis on AI integration and developer-focused command-line tooling. His previous roles include being the founder and technical lead of several notable Spring projects, including Spring Cloud Data Flow, Spring XD, Spring Data, Spring Shell, Spring AMQP, and Spring.NET. Before his work with Spring, Mark was involved in offline computing in high-energy nuclear physics at Brookhaven National Laboratory and also served as a technical lead in the financial services industry, concentrating on front-office trading systems.

Mark Swatosh

Mark Swatosh

Software Engineer at IBM

Mark Swatosh has worked as a software developer in the enterprise Java space for over a decade. He is a software developer at IBM working on Open Liberty, and a Jakarta EE committer for the Jakarta Data and Jakarta Concurrency projects. He is also a fan of energy efficient building, living in a Net-Zero home he designed with his wife.

Martin Lippert

Martin Lippert

Spring Tools Lead, VMware / Broadcom

Martin works at VMware on developer tooling for the Spring and Spring Boot. He co-leads the team that ships all the Spring Tools for Eclipse, Visual Studio Code, Theia, and more.

Mary Grygleski

Mary Grygleski

Senior Developer Advocate at DataStax

Mary is a Java Champion and a passionate Senior Developer Advocate at DataStax, a leading data management company that champions Open Source software and specializes in Big Data, DB-as-a-service, Streaming, and Cloud-Native systems. She spent 3.5 years as a very effective advocate at IBM, focusing on Java, Jakarta EE, OpenJ9, Open Source, Cloud, and Distributed Systems. She transitioned from Unix/C to Java around 2000 and has never looked back since then. She considers herself a polyglot and loves to continue learning new and better ways to solve real-life problems. She is an active tech community builder outside of her day job, and currently the President of the Chicago Java Users Group (CJUG), as well as a co-organizer for several IBM-sponsored meetup groups in the Greater Chicago area.

Mohit Suman

Mohit Suman

Senior Product Manager, Red Hat

Mohit Suman is based out of beautiful country India. He works as a Senior Technical Product Manager at Red Hat, Developer Experience. He holds experience in Product Management, Software Engineering and Architecture in fields ranging from large-scale distributed computing and developer productivity.

Nagarjuna Vipparthi

Nagarjuna Vipparthi

Senior Product Manager, Developer Division, Microsoft

Nagarjuna is a Senior Product Manager in Microsoft Developer Division, focusing on Azure Load Testing. He has a decade of experience spanning product management, automation testing, machine learning and web application development.

Nick Zhu

Nick Zhu

VS Code, Java development, Cloud-native, Microsoft

Developer at heart.

Nikita Nallamothu

Nikita Nallamothu

Senior Product Manager, Microsoft

Nikita is a Senior Product Manager at Microsoft from Hyderabad, India. She has been at Microsoft for more than 4 years and has worked in the developer space ever since. She has worked on Azure DevOps, GitHub and is currently focussing on Azure Load Testing. A true advocate for developers, Nikita is passionate about creating products that make the lives of developers easier and more efficient.

Oleg Šelajev

Oleg Šelajev

Head of Developer Relations, AtomicJar

Oleg Šelajev is a head of developer relations at AtomicJar working on making local development and testing bring joy. Developer. Java Champion. Docker captain. Loves all languages.

Otavio Santana

Otavio Santana

Software Engineer & Architect and Open Source Committer, Otaviojava

Otavio, a passionate cloud and Java expert, empowers software engineers with open-source best practices for highly scalable, efficient software. He's a renowned contributor to the Java and open-source ecosystems, receiving numerous awards and accolades. Otavio's interests include history, economy, travel, and fluency in multiple languages, all seasoned with a sense of humor.

Patrick Baumgartner

Patrick Baumgartner

Software Crafter at 42talents

Patrick Baumgartner works as a passionate software crafter, coach, and trainer at 42talents. He works with people to create beautiful and simple solutions and enjoys building software for the cloud with Java, the Spring ecosystem, OSGi, Neo4j and ElasticSearch and other open-source technologies.

Reza Rahman

Reza Rahman

Principal Program Manager, Java on Azure at Microsoft

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. Reza has been an official Java technologist at Oracle. He is the author of the popular book EJB 3 in Action from Manning Publishing. Reza has long been a frequent speaker at Java User Groups and conferences worldwide including JavaOne and Devoxx. He has been the lead for the Java EE track at JavaOne as well as a JavaOne Rock Star Speaker award recipient. He was the program chair for the inaugural JakartaOne conference. Reza is an avid contributor to industry journals like JavaLobby/DZone and TheServerSide. He has been a member of the Java EE, EJB and JMS expert groups over the years. Reza implemented the EJB container for the Resin open source Java EE application server. He helps lead the Philadelphia Java User Group.

Roland Grunberg

Roland Grunberg

IDE Extensions Team Lead, Red Hat

Software developer, and IDE Extensions team lead at Red Hat. I help maintain the popular Java language support extension for VS Code.

Rory Preddy

Rory Preddy

Principal Cloud Advocate, Microsoft

Rory works in the Developer Relations team at Microsoft as a Principal 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.

Sami Ekblad

Sami Ekblad

Developer Experience Lead, Vaadin

Sami is an original team member from Vaadin. With the mission of "empowering developers to build cool things", he is an experienced web application developer. He has built web applications and reusable components for web development for Vaadin and other web frameworks. Taking software where it has not existed before, the current hobby is a hardware project for his sailing boat and using the MQTT as the backend.

Sandra Ahlgrimm

Sandra Ahlgrimm

Senior Cloud Advocate, Microsoft

Sandra worked at some Axel Springer Companies where she learned a lot about coding and DevOps in large companies. That knowledge helped her a lot in setting up the automated infrastructure and DevOps pipeline plus the agile momentum in the StartUp she worked afterwards. In her first year at Microsoft, she helped several companies with their container, Kubernetes, DevOps, agile processes before moving 5 years ago to the cloud advocacy team where she keeps focusing on open source technologies and heavily in Java.

Sean Li

Sean Li

Product Manager, Java on Azure, Microsoft

Sean Li is a product manager from the Java on Azure team. In his role, Sean helped to enable Spring integrations with Azure services, and bring to market Azure Spring Cloud, an Azure first-party PaaS jointly built with VMWare, to simplify development of Spring applications on Azure. Prior to Spring, Sean helped driving feature definition and customer engagements for Azure Blockchain services and Azure Database for MySQL.

Simon Ritter

Simon Ritter

Deputy CTO, Azul Systems

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, 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. Simon 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).

Theresa Mammarella

Theresa Mammarella

Software Engineer at IBM

Theresa Mammarella is a software engineer working on the Eclipse OpenJ9 JVM at IBM. She enjoys helping developers harness the full potential of their tools to create innovative, secure and performant solutions. Theresa is a frequent conference speaker and community organizer, giving talks around the world at Jfokus, Devoxx, DevNexus, JavaZone, KCDC, Java User Groups and more.

Timo Salm

Timo Salm

Timo Salm at Tanzu by Broadcom

Timo Salm is the first Solution Engineer for Developer Experience at Tanzu by Broadcom in EMEA, focusing on internal developer platforms and commercial Spring products. In this role, he's responsible for educating customers on the value of these products and ensuring that they succeed by working closely on different levels of abstractions of modern applications and modern infrastructure.

YK Chang

YK Chang

Architect & Developer Advocate, IBM

Yee-Kang (YK) Chang is an architect and developer advocate on the IBM's Java application platform team. He works on Open Liberty and contributes to various OSS projects like Eclipse LSP4Jakarta and LSP4MP. YK is keen on how we can make life easier and better for developers.

Yoshio Terada

Yoshio Terada

Sr. Cloud Advocate, Java Champion at Microsoft

I joined the Microsoft in 2015. Since then, I've evangelized and advocated for Java on Azure and the development of Cloud Native micro-services App on Azure as well as Kubernetes. For most of my technical career I have been an advocate and evangelist for numerous technologies; including Java, Cloud Native micro-services, Microsoft Azure and Kubernetes. With over 10 years of experiences as a Java Evangelist, I was selected as one of the “We are professional. 100 people energizing the world” by Japanese media company NIKKEI in 2013. As part of this, I have been a board member of the Japanese Java Users Group and an Oracle Java Champion since 2016.