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Camille Nigon is an AI Solutions Architect at Red Hat, where she helps bring cutting-edge, open-source AI solutions to life. With a strong background in data science and a passion for solving real-world problems, Camille loves using AI to tackle tough challenges and make a meaningful impact.She's a big believer in the power of collaboration and open innovation, and she’s especially passionate about creating more inclusive spaces in tech. Camille is actively involved in initiatives that promote diversity and help make technology accessible to everyone.

Carlos Sanchez is a Principal Scientist at Adobe Experience Manager, specializing in software automation, from build tools to Continuous Delivery and Progressive Delivery. Involved in Open Source for over 20 years, he is the author of the Jenkins Kubernetes plugin and a member of the Apache Software Foundation amongst other open source groups, contributing to several projects, such as Kubernetes, Jenkins or Apache Maven.

Cédric Champeau is a member of the Micronaut Framework team at Oracle. He is specialized in developer productivity and maintains among others the official GraalVM and Micronaut plugins for Gradle and Maven. He has worked for Gradle Inc. for several years on dependency management and other developer productivity issues. A former contributor to the Groovy language, he implemented its static compiler. Outside of computing, Cédric is an astronomy enthusiast.

Christian is a software developer and Microsoft MVP 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 on his YouTube channel for over 7000 subscribers.

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.

Daniel Afonso is a Senior Developer Advocate at PagerDuty, SolidJS DX team member, Instructor at Egghead.io, and Author of State Management with React Query. Daniel has a full-stack background, having worked with different languages and frameworks on various projects from IoT to Fraud Detection. He is passionate about learning and teaching and has spoken at multiple conferences around the world about topics he loves. In his free time, when he's not learning new technologies or writing about them, he's probably reading comics or watching superhero movies and shows.

Dmitry Kekelidze is a technology leader and solution architect with over 14 years of experience transforming large-scale enterprise systems. At CERN—the world’s leading scientific organization—he drives the modernization of mission-critical business platforms in HR, finance, and document management. His work focuses on architecture, agile delivery, and leading hybrid engineering teams through complex modernization and integration projects. Dmitry is passionate about platform governance, developer productivity, and leveraging AI to enhance software quality. A frequent speaker on orchestration and software architecture, he enjoys sharing insights from building secure, scalable, and future-ready systems.

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.

Staff Software Engineer and Lead Architect for Business Computing, CERN

Hi, my name is Joe. I'm a PhD researcher in High Energy Physics at University College London, working within the CDT in Data Intensive Science and the ATLAS collaboration at CERN. I build tools to increase the efficiency of large experimental collaborations, so that we can learn more about physics!One such tool is Contur, which repurposes published measurements from ATLAS and CMS to constrain physics beyond the Standard Model. This data re-use allows theorists to directly compare the signatures of their model against data from hundreds of analyses, all without the need for a bespoke search from the LHC experiments. This reduces model to insight time from years to hours.Another challenge in large scientific collaborations is the amount of internal documentation, often disjointed, spread across multiple forms and difficult to search. To address this problem of efficient information retrieval, we propose chATLAS, an AI assistant for the ATLAS collaboration that works using retrieval augmented generation (RAG). I am the core developer of chATLAS, tasked with scaling the tool from proof-of-concept to production. In 6 months of production, chATLAS has answered 5,000 queries from ATLAS physicists, and was recently endorsed by a group convener as the go-to tool for information retrieval in the collaboration of over 3,000 physicists.Outside particle physics, I have applied natural language processing and large language models to social science, with a quantitative study of immigration rhetoric in UK politics with The Guardian.

Jos gets a smile on his face when he makes other people happy by letting a computer do what they don’t like to do. He has been trying to do so professionally for the past 16 years.In his spare time, Jos likes to play tennis. He is a trainer/coach for kids playing the typical Dutch sport korfball.

Software Engineer with nearly 4 years of experience in data management, backend services, web development, and performance analysis across domains such as Scientific Research, Retail, and AI. My core expertise is in Java and Spring Boot, with a new found love for AI-integrated systems.Currently a Full-Stack Developer in the Finance and Administrative sector, focused on building and maintaining in-house systems and third-party integrations within the Domain of Human Resources.

Kevlin Henney is an independent consultant, speaker, writer and trainer. His work with companies is focused on code, design, practices and people. Kevlin is a contributor to the Modern Software Engineering YouTube channel. He has also contributed to open- and closed-source codebases, been a columnist for a number of magazines and sites. He is co-author of A Pattern Language for Distributed Computing and On Patterns and Pattern Languages. He is also editor of 97 Things Every Programmer Should Know and co-editor of 97 Things Every Java Programmer Should Know.

Maarten Vandeperre is an experienced software professional who recently joined Red Hat as an Appdev & AI Specialized Solutions Architect. With a strong background in software development and architecture, he brings a wealth of expertise to his role. Maarten's primary focus is on application development and AI, with a particular emphasis on leveraging Red Hat's OpenShift platform from a developer's perspective.One of Maarten's true passions lies in advocating for "clean architecture" as a guiding principle in software development. He firmly believes in the importance of designing software systems that are modular, maintainable, and scalable. As part of his dedication to this approach, Maarten strives to map these principles to infrastructure solutions, ensuring that the underlying technology supports and enhances the overall architecture. His deep understanding of integration technologies, such as API Gateways, Keycloak, Kafka, service mesh, and Camel, enables him to create seamless connections between systems while adhering to clean architectural principles, which empower organizations to thrive in the ever-evolving digital landscape.

A seasoned Senior Staff Engineer at Bitvavo, the leading crypto exchange in the Benelux, with over two decades in the IT industry. A passionate advocate for technology, distributed systems, and engineering culture, Marcos Maia has built a diverse career spanning multiple countries and roles, from engineering to architecture and consultancy. With a focus on finance, investment, and telecom sectors, he shares his expertise in development practices, low-latency systems, engineering culture, and Apache Kafka through engaging talks for leadership, developers, students, and clients.

Marit van Dijk is a software developer with over 20 years of diverse experience across various roles and companies. As a Java Champion and Developer Advocate at JetBrains, she is passionate about building awesome software in collaboration with amazing people, and making developers’ lives better.Marit is committed to continuous learning and actively shares her expertise in programming, software development, testing, and test automation.Marit regularly presents at international conferences, participates in webinars, and appears on podcasts. Additionally, she writes blog posts and tutorials, creates videos, and is a contributor to the book “97 Things Every Java Programmer Should Know” (O’Reilly Media).

Member of the Spring Boot team. Team lead for start.spring.io and Spring Initializr. Open Source enthusiast.

Oleg Lobanov is a Staff Engineer at Bitvavo with 16 years of experience in engineering. He leads the architectural vision and technical evolution of Bitvavo’s ultra-low-latency exchange platform, drawing on deep expertise in building distributed, fault-tolerant, and latency-critical systems. Oleg specializes in advanced performance optimization, including JVM garbage collection minimization, efficient inter-process communication, and highly optimized data structures.

Olena is a Staff Developer Advocate at Confluent and a recognized expert in data streaming and analytics. With two decades of experience in software engineering, she has built mission-critical applications, led high-performing teams, and driven large-scale technology adoption at industry leaders like Nokia, HERE Technologies, AWS, and Aiven.A passionate advocate for real-time data processing and AI-driven applications, Olena empowers developers and organizations to use the power of streaming data. She is an AWS Community Builder, a dedicated mentor, and a volunteer instructor at a nonprofit tech school, helping to shape the next generation of engineers.As an international speaker and thought leader, Olena regularly presents at top global conferences, sharing deep technical insights and hands-on expertise. Whether through her talks, workshops, or content, she is committed to making complex technologies accessible and inspiring innovation in the developer community.

Patrick Baumgartner is a Java Champion, passionate software crafter, and technical agile coach at 42talents. He helps teams build elegant, simple, and robust solutions, specializing in cloud software with Java, the Spring ecosystem, and other open-source technologies.Patrick is an active member of the Software Craft, Java, and Agile communities in Switzerland. As a trainer and coach, he focuses on making a real impact by sharing knowledge, experimenting, and fostering continuous improvement. He enjoys learning with and from others.

Italian, adopted by France not long ago, I am a constant learner, dedicated to computer science and discovery—whether uncovering solutions or gaining insights.

Meet Ronald Dehuysser, a software architect from Belgium and creator of JobRunr. Seamlessly integrating with Spring Boot, Micronaut, and Quarkus, JobRunr is Ronald's solution for efficient distributed background job processing.When he's not working on open-source software, he is probably either rock climbing or sipping a fine Belgian Duvel beer.

Soroosh is a software engineer and software architecture enthusiast, passionate about building simple but impactful solutions. With over 10 years of experience in diverse domains, including Telecom, Media & Entertainment, and E-Commerce. He has worked with small startups and large enterprises serving 80 million active subscribers. Currently working as a Solution Architect at Rabobank via Code Nomads. Soroosh strongly believes in the power of collaborative learning and enjoys sharing his experiences and insights with other developers.

Victor Uria Valle is a Full Stack Software Engineer at CERN, where he works on modernizing and developing enterprise applications that support the lab’s scientific operations. Victor's work includes upgrading CERN’s core document management systems using modern Java and Spring-based technologies.Passionate about clean architecture, maintainable code, and legacy system transformation, he also leads the Applications and Services Community of Practice at CERN, fostering collaboration and technical excellence.He is an active speaker in the developer community, with talks at Voxxed Days CERN 2024 (“Custom Spring Data Projections Beyond JPA”), Voxxed Days CERN 2025 (“Guice: Why lightweight dependency injection frameworks are not enough”), and CERN Spring Campus 2025 on Python-powered trading strategies and advanced Power BI data visualization.