Stephan Janssen
Devoxx founder | AI-augmented programming and Java innovation expert
About
Stephan Janssen is the founder of Devoxx, one of the world's leading developer conference series, now in its 19th edition in Belgium. His deep involvement in the developer community spans decades, bringing together thousands of technologists to explore cutting-edge innovations in software development.
Janssen focuses on the emerging era of AI Augmented Programming (AAP), particularly exploring how modern Java can be leveraged to build sophisticated AI systems. His work demonstrates practical approaches to integrating large language models into development workflows, including building custom RAG (Retrieval-Augmented Generation) systems that leverage 30+ LLMs for enhanced performance.
Through his presentations, he bridges the gap between traditional Java development and the latest AI capabilities, showing developers how to harness these technologies using familiar tools and languages. His conference talks span both technical deep-dives into AI-augmented programming and reflective perspectives on Devoxx's evolution, sharing insights from the conference's journey through past, present, and future challenges in the developer ecosystem.
What Stephan Talks About
AI Augmented Programming (AAP) using modern Java
Building custom RAG systems with 30+ large language models
The evolution and future of developer conferences and community building
Practical implementation of AI tools in Java development workflows
Leveraging LLMs for enhanced development performance
Featured5 with video
The Era of AAP: Ai Augmented Programming using Modern Java
As we enter the era of AI-Augmented Programming (AAP), developers stand at the threshold of a profound shift in software creation and maintenance. This talk delves into the emerging paradigm where Java and Large Language Models (LLMs) are leveraged to enhance and automate various stages of the development lifecycle. We'll explore how Java and LLMs are reshaping Integrated Development Environments (IDEs) and transforming developer workflows. The presentation will demo the integration of both local and remote LLMs, demonstrating their practical applications in coding assistance, debugging, and even generating entire projects from high-level prompts. We’ll also explore a new and exciting approach named Test-Driven Generation (TDG), which uses LLMs to align testing and code generation for a streamlined, quality-driven development process.
| Event | Year | Location |
|---|---|---|
| Devoxx×3 | 2025, 2024, 2022 |
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Who has Stephan shared a stage with?
Speakers who appeared at the same event editions as Stephan
| Speaker | Shared events | Where they appeared together |
|---|---|---|
| Mete AtamelLLM applications and serverless architecture speaker | Cloud-native development expert | 3 | Devoxx Belgium 2022, Devoxx Belgium 2024, Devoxx Belgium 2025View shared history → |
| Natan SilnitskyKafka and microservices expert | Large-scale system migration and developer productivity | 3 | Devoxx Belgium 2022, Devoxx Belgium 2024, Devoxx Belgium 2025View shared history → |
| Alexander ChatzizachariasDeveloper tools and creative coding explorer | Vector databases and unconventional tech experiments | 2 | Devoxx Belgium 2024, Devoxx Belgium 2025View shared history → |
| Ana Maria MihalceanuJava and Kubernetes speaker | JDK security and performance optimization | 2 | Devoxx Belgium 2022, Devoxx Belgium 2024View shared history → |
| Anton ArhipovIntelliJ IDEA expert | Kotlin and Java development tools specialist | 2 | Devoxx Belgium 2024, Devoxx Belgium 2025View shared history → |
| Cristian SchuszterSoftware architecture and Spring Security expert | Speaking at Devoxx conferences | 2 | Devoxx Belgium 2024, Devoxx Belgium 2025View shared history → |
| Maciej WalkowiakSpring Boot and JPA performance specialist | Devoxx speaker | 2 | Devoxx Belgium 2022, Devoxx Belgium 2024View shared history → |
| Markus KettJava cloud-native architecture specialist | In-memory computing and microservices expert | 2 | Devoxx Belgium 2022, Devoxx Belgium 2025View shared history → |
Similar Speakers
Related by topic and shared stages
Mete Atamel
LLM applications and serverless architecture speaker | Cloud-native development expert
Both at Devoxx Belgium 2025, Devoxx Belgium 2022
Alexander Chatzizacharias
Developer tools and creative coding explorer | Vector databases and unconventional tech experiments
Both at Devoxx Belgium 2025, Devoxx Belgium 2024
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