group speakers.title

Open-source software engineer with over 15yrs of experience in the field and people manager of a worldwide distributed and diverse team of engineers. Contributor of RESTEasy and many other successful open-source projects (WildFly, Quarkus, Apache CXF, Apache WSS4J, Apache Santuario, ...)

Andres is a Java/Groovy developer and a Java Champion with more than 20 years of experience in software design and development. He has been involved in web and desktop application development since the early days of Java. Andres is a true believer in open source and has participated on popular projects like Groovy, Griffon, and DbUnit, as well as starting his own projects. Founding member of the Griffon framework and Hackergarten community event. Creator of JReleaser.

Staff Developer Advocate for Snyk, Java Champion, and Software Engineer with over a decade of hands-on experience in creating and maintaining software. He is passionate about Java, (Pure) Functional Programming and Cybersecurity. Brian is a JUG leader for the Virtual JUG and the NLJUG. He also co-leads the DevSecCon community and is a community manager for Foojay. He is a regular international speaker on mostly Java-related conferences like JavaOne, Devnexus, Devoxx, Jfokus, JavaZone and many more. Besides all that, Brian is a military reserve for the Royal Netherlands Air Force and a Taekwondo Master / Teacher.

After growing up in the German countryside, I studied in the United States (M.S. in computer science from Syracuse University, and a Ph.D. in mathematics from the University of Michigan in Ann Arbor). For four years, I was VP and CTO of an Internet startup that went from 3 people in a tiny office to a public company. I taught computer science at San Jose State University and held visiting appointments at universities in Germany, Switzerland, Vietnam, and Macau. In my copious spare time I write books and articles on programming languages and computer science education.

Christian is a software developer, Microsoft MVP and Oracle ACE for Java with over 15 years of experience in the field. He loves to write code in Java, TypeScript and JavaScript. In his spare time he tries to convince others to also start using these languages by giving engaging live-coding conference talks and trainings. When there‘s time left he records videos trying to explain the most complex concepts of TypeScript in a simple way.

Céline is a Software Engineer at Swiss Post with a passion for problem solving. As a Co-Lead Developer for the Swiss Post E-Voting project, she has gained significant experience in back-end and front-end development, deployment processes, cryptography, and security.

Ever being frustrated as a child by the single kilobyte of RAM in his ZX80 computer, Connor has loved the challenges that come with storing data, which ultimately led to a career in databases. When Y2K did not end the world as people thought, he started presenting on SQL and Databases, and since then he has spoken at over 200 conferences around the world. He has co-authored three books on database technology, and splits his time between helping developers via his YouTube channel, blog and podcast, and helping his rescue greyhound with treats, walks and cuddles.

César Soto Valero is currently a Data Scientist at SEB Group. He has experience building and maintaining AI/ML systems serving millions of customers in real-time. César earned a PhD in Computer Science from KTH Royal Institute of Technology, where his research focused on inventing novel low-level program analysis techniques to mitigate software bloat and improve the efficiency, security, and maintainability of large codebases. With a background spanning both academic research and industrial engineering, César bridges the gap between theory and practice by translating research breakthroughs into robust, production-grade software systems. He is passionate about engineering, AI, and the practical challenges of deploying scalable, reliable software solutions that serve real user needs.

Neciu Dan is the technical co-founder and tech lead of CareerOS, where he spearheads the development, maintenance, and scaling of the main application. Bringing over 12 years of engineering expertise to the table, Dan has a proven track record in the tech industry, having previously served as a Senior Product Engineer at the New York E-commerce brand, AdoreMe, and as a Senior Software Engineer at the food delivery company, Glovo. Beyond his technical contributions, Dan is an esteemed international speaker and mentor. He passionately encourages best development practices, with a keen focus on testing, accessibility, and security. His recent speaking engagements include esteemed conferences like React Alicante, Utah JS, Techorama Belgium, and Frontmania Netherlands.

David Tanzer is a freelance developer, trainer and technical coach with two decades of experience. He not only supports clients with long-term projects; He also helps developers and teams to gain new knowledge and to improve their existing skills. His main focus is on modern software engineering- On delivering hiqh-quality software continuously using testing, automation, feedback and collaboration.

Dimitris has 25 years of experience in IT and he is currently Sr. Director of Engineering (Red Hat) at IBM in charge of the Cloud Native Runtimes group that includes the Quarkus, Vert.x, SpringBoot, and Node.js teams. He also served as the JBoss AS project lead and he has been a JBoss addict and contributor from the early start-up days. He worked previously at Intracom and Motorola in the areas of NMS/OSS, designing reusable frameworks and distributed systems. Dimitris studied computer science at the Technological Educational Institute of Athens and received an M.Sc. by research from University College Dublin, Ireland.Dimitris is also a passionate advocate of Open source technologies and has presented at a variety of events and conferences around the world. He has been an invited speaker at various Java/Linux community events and user groups, and he has delivered inspirational talks on technology and Open Source in universities and educational institutes. In his spare time he has also helped with the organization of technology enablement events for children, like Scratch Days, Devoxx4Kids and JCrete4Kids.

Eberhard Wolff has 20+ years of experience as an architect and consultant - often on the intersection of business and technology. He is the Head of Architecture at SWAGLab in Germany. As a speaker, he has given talks at international conferences and as an author, he has written more than 100 articles and books e.g. about Microservices and Continuous Delivery. His technological focus is on modern architectures – often involving Cloud, Domain-driven Design, DevOps, or Microservices.

I am a Compiler Engineer in the Java Platform Group at Oracle.I mostly work on the Hotspot C2 JIT compiler, with a focus on compiler optimizations, auto vectorization and the Vector API.

Fabrizio Beretta Piccoli is a dynamic Application Manager for E-Voting at Swiss Post, where he supports the development and management of secure electronic voting solutions. With a background in ICT, DevOps, and application management, Fabrizio has experience working with diverse teams and stakeholders across Switzerland.Fabrizio is known for clear communication, a collaborative approach, and the ability to explain technical topics to different audiences. Fluent in Italian, French, English, and German, he values teamwork and knowledge sharing, and enjoys working in multicultural environments. Fabrizio is committed to supporting digital innovation and public service in Switzerland

Faris Aziz is a Staff Frontend Engineer specializing in React, Next.js, monetization systems, and resilient web architecture. He's led teams in early-stage startups and scaling companies, built career ladders from scratch, and shipped systems used by millions. His work spans greenfield builds and legacy refactors across Fintech, SaaS, Fitness, and Connected TV, with companies like Smallpdf, Fiit, Discovery, GCN, and Navro. He focuses on building performant, user-centric applications with solid observability and maintainability. Faris co-organizes ZurichJS, contributes to tools like Raycast, and spends time contemplating life's great questions, like why the build works on his machine but nowhere else.

Developer Advocate

I've been working for many years in the computer field. In the last 15 years I've cultivated a strong passion in Java development and the under the hood details of OpenJDK, C and (x86) Assembly.Big fan of DDD (Domain Driven Design) world, I've developed several Event-Sourcing high performance solutions in the medical and IoT field.I'm an active member of various online communities on performance (https://groups.google.com/forum/#!forum/mechanical-sympathy), Senior Principal (Software) Performance Engineer and Performance Lead for Red Hat/IBM on Quarkus, Red Hat Top Inventor (2019).I've collaborated to different projects related high-performance computing both as committer and contributors eg Quarkus, Vert-x, Netty committer, JCTools author, PMC of ActiveMQ Apache Artemis (Messaging Broker), HdrHistogram, JGroups-raft, ...

Giovanni Degiorgi is a forward-thinking Solution Architect at Swiss Post, based in Lugano, Switzerland. With a strong focus on digital transformation and cloud adoption, he plays a key role in guiding Swiss Post’s transition toward scalable, secure, and data-driven solutions. His expertise in cloud architecture and machine learning systems has been instrumental in driving innovation and operational efficiency across the organization.Giovanni recently earned a Master’s degree in Machine Learning and Artificial Intelligence from SUPSI (University of Applied Sciences and Arts of Southern Switzerland), which deepened his technical foundation and strengthened his ability to bridge traditional IT infrastructure with modern AI-driven architectures.In his current role, he supports development teams in defining foundational blueprints for cloud and MLOps practices on AWS—streamlining the deployment, monitoring, and lifecycle management of machine learning models in production.

I’ve spent over a decade in IT working with the two perennial stepchildren of software: people and processes. With a first education in industrial design, I learned early that visualisation shapes understanding – and that the journey is the destination. As a huge fan of knowledge management and organisational theory, I today explore how IT teams build knowledge, make decisions, and achieve the flow. As AI pushes us toward instant output, I focus on what keeps humans sharp, curious, and creative in a world where the output seems to count more than ever.

Jasmin Fluri is a database and DevOps consultant at Schaltstelle GmbH, based in Bern, Switzerland. She lectures on software engineering, databases, and data warehousing at the University of Applied Sciences North-western Switzerland. As an Oracle ACE Pro and a recipient of the Redgate 100 recognition for influential voices in the database community, Jasmin aims to share good technical knowledge and help teams work well together in the database field.Jasmin’s core goal is to empower development teams to deliver reliable, scalable, and maintainable solutions by implementing streamlined engineering processes and automation practices. She specializes in setting up robust CI/CD pipelines, database infrastructure automation, and effective collaboration workflows.

As an observability architect, my job is to make sure that telemetry data keeps flowing, whatever happens!

Jonas Bandi is a freelance developer, consultant and trainer. His current passion is bringing modern front-end development to traditional enterprise projects.Coming from a Java & .NET background he is now primarily working with JavaScript, Angular & React. Jonas is currently building the web-stack for a leading wholesale supply company in Switzerland.In the past years he shared his knowledge in dozens of in-house workshops at companies all over Switzerland. Jonas is also a lecturer at the University of Applied Sciences (BFH) in Bern.

Josh (@starbuxman) has been the first Spring Developer Advocate since 2010. Josh is a Java Champion, author of 7 books (including "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, Axon, Spring Cloud, Activiti, Vaadin, etc), a Youtuber (Coffee + Software with Josh Long as well as my Spring Tips series ), and a podcaster ("A Bootiful Podcast").

Kevin Dubois is a software architect and platform engineer with a career spanning over 20 years. He is often featured as a keynote speaker at conferences around the world where he shares his experience and knowledge about cloud native & AI software development, developer experience, open source and Java. Kevin is also an author and Java Champion. He currently works as a Senior Principal Developer Advocate at IBM, and is also Technical Lead for the CNCF Developer Experience Technical Advisory Group.

Loïc Magnette is a seasoned software developer with a strong background in consulting. Currently a senior developer at Oniryx, he specializes in Java and Angular, delivering innovative solutions and sharing his knowledge as a speaker. As a co-organizer of the Belgian Java User Group (BeJUG), he fosters connections within the developer community. Outside of tech, Loïc’s passion for wildlife inspires his work and creativity.