Devoxx Courses

Stranger Danger - Your Node.js Attack Surface Just Got Bigger

A live hacking session shows how Node.js security risks extend into containers, cloud deployment, and Kubernetes, with practical fixes for demonstrated exploits.

• YouTube
• 51 minutes
• Self-Paced
• Conference Talk

The Capabilities of Semantic Search

A comparison of symbolic and semantic search introduces Jina’s pipeline for searching across text, images, audio, presentations, and video.

• YouTube
• 22 minutes
• Self-Paced
• Conference Talk

Dissecting Our Legacy - The Strangler Fig Pattern

Shows how change data capture and Debezium can support the Strangler Fig approach to modernizing legacy systems.

• YouTube
• 39 minutes
• Self-Paced
• Conference Talk

How and Why to Upgrade to Java 17

Johan Janssen explains how and why to upgrade to Java 17.

• YouTube
• 36 minutes
• Self-Paced
• Conference Talk

Respectful REST APIs – Sunset and Deprecation HTTP Headers

Explore how the Sunset and Deprecation HTTP headers help REST APIs communicate planned changes.

• YouTube
• 44 minutes
• Self-Paced
• Conference Talk

Do You Use Optional Class as It Should Be?

Explore best practices and common pitfalls when using Java's Optional class to handle null values and improve code readability in this insightful talk.

• YouTube
• 58 minutes
• Self-Paced
• Conference Talk

Assuring Data Quality at Scale

Explains how to build data quality capabilities into data platforms, using monitoring, profiling, checks, and remediation to maintain trust in stream and batch data.

• YouTube
• 50 minutes
• Self-Paced
• Conference Talk

Cypher Sleuthing - Tips and Tricks for Querying a Graph Database

Explore Cypher query logic, temporal values, and common pitfalls that can derail accurate or performant graph database results.

• YouTube
• 53 minutes
• Self-Paced
• Conference Talk

Humane On Call - Alerting Doesn't Have to Be Painful

Learn to make on-call alerting less painful by reducing noise, automating tasks, building actionable triggers, and continually tuning monitoring.

• YouTube
• 44 minutes
• Self-Paced
• Conference Talk

Continuous Integration and Delivery in the Cloud Native World

See how Tekton builds applications inside Kubernetes and Argo CD deploys them through declarative, self-healing delivery workflows.

• YouTube
• 52 minutes
• Self-Paced
• Conference Talk

Replicating Production in Your Tests with the Magic of Containers

See how MicroShed and Testcontainers use containers to bring production-like environments into application tests with minimal changes to test code.

• YouTube
• 46 minutes
• Self-Paced
• Conference Talk

Race Between Pair Programming Tools

A comparison of IDE-integrated tools for remote pair programming, including their trade-offs and when each tool may be a good fit.

• YouTube
• 44 minutes
• Self-Paced
• Conference Talk

Java and Ransomware - What's in It for You?

Explore how ransomware attacks unfold, why they happen, and how vulnerable CI/CD pipelines can put Java applications and data at risk.

• YouTube
• 47 minutes
• Self-Paced
• Conference Talk

The Automation Challenge - Kubernetes Operators vs Helm Charts

Compare Kubernetes Operators and Helm charts through code examples to see when each automation approach fits and how they complement one another.

• YouTube
• 32 minutes
• Self-Paced
• Conference Talk

The Art of Code

A look at code as an art form, from fractals and self-replicating programs to live coding as performance.

• YouTube
• 54 minutes
• Self-Paced
• Conference Talk