Devoxx Poland Courses

The First 80% of Reading One Billion Rows Really Fast

Explore optimizing Java performance from 130 seconds to 10 seconds processing billion-row CSV files using plain Java 21 techniques and performance analysis tools.

• YouTube
• 50 minutes
• Self-Paced
• Free Video

What Every Software Architect Should Know About Infrastructure

Explore essential infrastructure considerations for software architects, covering continuous delivery, cloud strategies, CAP theorem, and avoiding common pitfalls in system design.

• YouTube
• 42 minutes
• Self-Paced
• Free Video

Secure Coding Essentials in Java to Protect Your Application

Master secure Java coding practices to protect applications from common vulnerabilities like injection attacks, input validation errors, and arbitrary code execution threats.

• YouTube
• 48 minutes
• Self-Paced
• Free Video

A Fun and Absurd Introduction to Vector Databases

Discover vector databases through a fun introduction covering data translation to vectors, querying techniques, and applications in AI, search engines, and natural language interfaces.

• YouTube
• 49 minutes
• Self-Paced
• Free Video

Fast Java Startups with Lambda SnapStart

Discover how Lambda SnapStart accelerates Java application cold starts, reducing latency and improving serverless performance in AWS environments.

• YouTube
• 29 minutes
• Self-Paced
• Free Video

Say It Works on My Machine One More Time... I Dare You!

Discover how to eliminate the infamous "works on my machine" problem through practical containerization and deployment strategies for consistent development environments.

• YouTube
• 54 minutes
• Self-Paced
• Free Video

Our Journey from Gitflow to Trunk Based Development

Discover how to transition from Gitflow to Trunk Based Development through real-world experiences and practical insights from industry implementation challenges.

• YouTube
• 50 minutes
• Self-Paced
• Free Video

S, BB, X, Y, Z, a - A Plethora of Generations in Tech

Explore how different generations navigate and shape the technology landscape, from Silent Generation to Gen Alpha, and their unique contributions to tech evolution.

• YouTube
• 41 minutes
• Self-Paced
• Free Video

Learn the Old, Learn the New - Understanding Programming Languages Through Historical Context

Explore programming language evolution by studying historical influences to better understand modern and future technologies in software development.

• YouTube
• 56 minutes
• Self-Paced
• Free Video

Java and AI - Build LLM App with LangChain4j - Part 2

Master LangChain4j framework to build AI-powered Java applications with multiple LLM providers, image generation, RAG implementation, and Quarkus integration for deployment-ready apps.

• YouTube
• 51 minutes
• Self-Paced
• Free Video

Java and AI - Build LLM App with LangChain4j - Part 1

Explore LangChain4j framework to build AI-powered Java applications with multiple LLM providers, image generation, RAG implementation, and Quarkus integration for deployment-ready apps.

• YouTube
• 1 hour
• Self-Paced
• Free Video

Know Your Java? - Part 2

Uncover surprising Java behaviors and deepen your understanding of language quirks that trip up experienced developers through practical examples and expert insights.

• YouTube
• 54 minutes
• Self-Paced
• Free Video

Know Your Java? - Part 1

Uncover surprising Java behaviors and deepen your understanding of language quirks that trip up experienced developers through practical examples and expert insights.

• YouTube
• 59 minutes
• Self-Paced
• Free Video

The Engineer's Guide to Sustainable IT

Discover practical strategies for reducing environmental impact through sustainable software development and green IT practices.

• YouTube
• 14 minutes
• Self-Paced
• Free Video

No Trust, No Team

Discover how trust forms the foundation of effective teamwork and learn practical strategies to build stronger, more collaborative development teams.

• YouTube
• 39 minutes
• Self-Paced
• Free Video