JAVA & JVM
The core of modern Java and JVM ecosystem. Language features, performance, memory management, and JVM internals. For engineers who want to understand how it really works.
ARCHITECTURE
Designing systems that survive scale. Distributed systems, microservices and monoliths, event-driven architectures, and the compromises engineers face when systems grow.
RELIABILITY
Building software that works in production. Practices that improve system quality and resilience. Testing strategies, observability, chaos engineering, and reliability-focused design.
CLOUD & DEVOPS
The infrastructure behind modern software. Cloud-native systems, CI/CD pipelines, and platform engineering that enable teams to build and operate software at scale.
AI ENGINEERING
AI as part of the engineering stack. Practical approaches to using it in development workflows and production systems, from AI-assisted coding to integrating AI into backend.
SOFT SKILLS
Engineering beyond the code. Technical leadership, communication, and decision-making skills needed to build and evolve complex systems within teams.
2025 EDITION IN NUMBERS
600
Attendees
60
Lectures
30
Partners
20
Years
Why join JDD?
JDD is a conference for developers and software engineers who build and evolve real-world systems. With Java and JVM at its core, JDD explores modern software engineering in the context of distributed architectures, AI-powered development, cloud-native infrastructure, and secure, scalable platforms.
The conference brings together developers, architects, backend engineers, and technical leaders working on complex, long-lived systems. The focus is on production experience, architectural decisions, and practical lessons learned from building software that operates at scale.
At JDD, we examine how engineering continues to evolve – how AI becomes part of everyday workflows and system design, how security is integrated into development practices, and how infrastructure choices shape performance and resilience. Designed primarily for mid and senior engineers, JDD is a space for experience exchange and meaningful networking, created in collaboration with Java User Groups.
Our outrageously brilliant speakers
TICKETS
Ticket prices go up in:
* The amount of tickets is limited.
Ticket includes:
- coffee break and lunch,
- the afterparty,
- Q&A sessions,
- meetings and conversations with speakers,
- representatives of companies / networking,
- certificate of attendance
Ticket includes:
- coffee break and lunch,
- the afterparty,
- Q&A sessions,
- meetings and conversations with speakers,
- representatives of companies / networking,
- certificate of attendance
LATEST NEWS
JDD 2025 – The heart of JAVA beats here!
Another edition of JDD Conference is behind us – and what an unforgettable experience it was! For two inspiring days, over 600 developers, architects, and technology enthusiasts gathered in Kraków[…]
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Skills required for Java Developers in 2025
The IT market in 2025 is changing faster than ever before. Automation, artificial intelligence, cloud computing, and new software development paradigms mean that programmers are required not only to be[…]
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Will Java die out in 2025, in the age of AI, or will it still be needed in the IT market?
For several years now, we have been hearing statements such as “Java is dying” and that it is being increasingly pushed out of the market by AI, Python, Kotlin, and[…]
Read moreEVENT SCHEDULE
Track 1
Track 2: Performance
Track 3
JUGmajster + Track 4
Track 1
Track 2
Track 3: Soft Skills
Track 4
* The organizers reserve the right to make changes to the conference program.
OUR PARTNERS
BECOME A PARTNER
Connect with engineers building real systems
Join the JDD community and connect with developers, architects and engineering leaders. Showcase your expertise and network with a highly technical audience working across the JVM ecosystem, distributed systems, cloud platforms and AI engineering.
JDD 2025 HIGHLIGHTS
