GeeCON Conference Courses

Keep Your Dependencies in Check

Explore tools and strategies for efficiently managing and updating dependencies to enhance application security and maintain business value delivery.

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

Event Streaming for the Best of All Worlds - Apache Pulsar vs Apache Kafka

Explore event-driven messaging systems, focusing on Apache Pulsar's unique capabilities in supporting both streaming and queueing semantics for modern, cloud-native applications.

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

The Tale of Math and Scalability - Predicting System Performance

Explore how mathematical principles can predict and enhance software system scalability, uncovering the hidden math behind efficient engineering practices.

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

Declarative HTTP Client in Micronaut Framework - Live Coding Session

Explore Micronaut's declarative HTTP client, learning to handle client-server communication, prepare for network issues, and effectively test your implementations.

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

Transaction Isolation and Concurrency Control in Databases - PostgreSQL Case Study

Explore transaction isolation in databases, focusing on PostgreSQL. Learn about locking, versioning, and their impact on throughput and consistency. Gain practical insights through hands-on demonstrations.

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

Admire Kotlin, Adhere to Java - GeeCON Prague 2022

Explore Kotlin's strengths while understanding Java's enduring value in modern software development. Learn to leverage both languages effectively.

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

Simple, Modern Java Microservices in the Cloud

Explore modern Java microservices development for startups, focusing on simplicity, productivity, and cloud deployment. Learn architectural approaches and unconventional design choices.

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

Trusted Decentralized Package Network - Enhancing Software Supply Chain Security

Explore Pyrsia, an open-source project enhancing software supply chain security through distributed networks, blockchain, and seamless integration with popular packages.

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

CompletableFuture and Its Quirks in Java - Live Coding Session

Explore CompletableFuture's quirks, traps, and surprises in Java through live coding, covering thread pools, exception handling, cancellations, and unintuitive API methods.

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

Contextual Abstractions in Scala 3 - Saying Goodbye to Implicits

Explore Scala 3's new contextual abstractions, replacing implicits with clearer constructs like 'given' and 'using'. Learn to write more expressive and understandable code.

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

Distributed Object Graphs with MicroStream

Explore MicroStream: a cloud-native persistence layer for microservices offering fast in-memory processing, easy implementation, and cost-effective solutions for Java object graphs.

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

Malevolent Architect: Only Bad Decisions in Software Development - GeeCON 2022

Explore architectural pitfalls and solutions in software development, covering debugging, logging, burnout, and more. Learn to make informed decisions and navigate challenges effectively.

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

What the CRaC - Lightning Fast JVM Startup

Explore CRaC, an OpenJDK project addressing JVM warmup issues in microservices. Learn about its snapshot approach for faster startup times while maintaining runtime performance.

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

Serverless APIs - Creating Cloud-Based APIs in Minutes

Explore serverless API creation in AWS, Azure, and GCP using API Gateway and cloud functions. Compare solutions, discuss security, and understand limitations.

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

Introduction and Pitfalls of Java's New Concurrency Model - Virtual Threads and Structured Concurrency

Explore Java 19's virtual threads and structured concurrency, revolutionizing multithreading for high-throughput applications. Learn implementation techniques and avoid common pitfalls.

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