Rock the JVM

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The training on Scala, Kotlin, big data, streaming, functional programming and the JVM. 100000 engineers taught and counting! Taught Scala, Kotlin, functional programming, Akka, Apache Spark and more, in live trainings at some of the best companies in the world, including Apple and Adobe. rockthejvm.com

Home Videos Live Playlists

Simon Peyton Jones on Haskell, Verse, Strong Type Systems and Tasteful Abstractions

Simon Peyton Jones on Haskell, Verse, Strong Type Systems and Tasteful Abstractions Rock the JVM

1.9K views - 2 days ago

Jon Gjengset on Rust Internals, Vibe Coding, and Teaching by Streaming

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Jon Gjengset on Rust Internals, Vibe Coding, and Teaching by Streaming Rock the JVM and Jon Gjengset

13.7K views - 3 weeks ago

José Valim on Elixir, AI Tools, Gradual Type Systems, and Being a Prolific Open-Source Contributor

José Valim on Elixir, AI Tools, Gradual Type Systems, and Being a Prolific Open-Source Contributor Rock the JVM

2.5K views - 1 month ago

Richard Feldman on Roc, AI, Teaching, and Avoiding Fancy Functional Programming

Richard Feldman on Roc, AI, Teaching, and Avoiding Fancy Functional Programming Rock the JVM

2.7K views - 1 month ago

A New Scala Ethos - Scala Days 2025 talk by Daniel Ciocîrlan

A New Scala Ethos - Scala Days 2025 talk by Daniel Ciocîrlan Rock the JVM

4.5K views - 4 months ago

Haoyi Li on Mill, Scala at Scale, Conference Touring and Moving Up the Stack

Haoyi Li on Mill, Scala at Scale, Conference Touring and Moving Up the Stack Rock the JVM

3K views - 5 months ago

Grady Booch on Software Architecture, Effective Communication, and Computing as a Human Experience

Grady Booch on Software Architecture, Effective Communication, and Computing as a Human Experience Rock the JVM

3.2K views - 7 months ago

John De Goes on API Design, Effect Systems, Entrepreneurship and The Ultimate Coder

John De Goes on API Design, Effect Systems, Entrepreneurship and The Ultimate Coder Rock the JVM

5.4K views - 8 months ago

Robert Martin on Clojure, AI, Programming Languages and the Craft of Good Code

Robert Martin on Clojure, AI, Programming Languages and the Craft of Good Code Rock the JVM

15.3K views - 9 months ago

Jonas Bonér on Akka, Distributed Systems, Open-Source Sustainability and the Backbone of Agentic AI

Jonas Bonér on Akka, Distributed Systems, Open-Source Sustainability and the Backbone of Agentic AI Rock the JVM

2.9K views - 10 months ago

Rúnar Bjarnason on Unison, Scala, Distributed Systems and Delightful Programming

Rúnar Bjarnason on Unison, Scala, Distributed Systems and Delightful Programming Rock the JVM

2.4K views - 11 months ago

Paul Snively on Programming Languages, Reliable Code and Good Taste in Software Engineering

Paul Snively on Programming Languages, Reliable Code and Good Taste in Software Engineering Rock the JVM

3.5K views - 1 year ago

James Ward on Effect Oriented Programming, Writing Code in the Age of AI, Curiosity and Exploration

James Ward on Effect Oriented Programming, Writing Code in the Age of AI, Curiosity and Exploration Rock the JVM

3.8K views - 1 year ago

Martin Odersky on the Future of Scala, Learning, Teaching and the Quest for the Perfect Language

Martin Odersky on the Future of Scala, Learning, Teaching and the Quest for the Perfect Language Rock the JVM

13.5K views - 1 year ago

Introduction to Scala 3 Macros - How Macros Work, Quoting, Matching and Reflection

Introduction to Scala 3 Macros - How Macros Work, Quoting, Matching and Reflection Rock the JVM

2.8K views - 1 year ago

Scala 3 Inlines - Code Generation at Compile Time

Scala 3 Inlines - Code Generation at Compile Time Rock the JVM

2.3K views - 1 year ago

Where Are the Scala Frameworks? Functional Scala 2024 talk

Where Are the Scala Frameworks? Functional Scala 2024 talk Rock the JVM

5.8K views - 1 year ago

Java Structured Concurrency - a Comprehensive Guide

Java Structured Concurrency - a Comprehensive Guide Rock the JVM

8K views - 1 year ago

Tools For Scala Startups (ScalaIO 2024) - which libraries should you use for a full-stack product?

Tools For Scala Startups (ScalaIO 2024) - which libraries should you use for a full-stack product? Rock the JVM

5.1K views - 1 year ago

How to Write Full-Stack Scala Applications - ZIO

How to Write Full-Stack Scala Applications - ZIO Rock the JVM

4.7K views - 1 year ago

Scala & Kotlin Comparison, What Kotlin Can (Graciously) Steal from Scala [KKON 2024 talk]

Scala & Kotlin Comparison, What Kotlin Can (Graciously) Steal from Scala [KKON 2024 talk] Rock the JVM

5.3K views - 1 year ago

Testing Functional Kotlin with the Raise DSL: How to Use JUnit, Kotest, MockK, AssertJ and Mockito

Testing Functional Kotlin with the Raise DSL: How to Use JUnit, Kotest, MockK, AssertJ and Mockito Rock the JVM

1.8K views - 1 year ago

Automatic Dependency Injection in Scala - Just the Type System!

Automatic Dependency Injection in Scala - Just the Type System! Rock the JVM

5K views - 1 year ago

A Remote Code Execution System with Apache Pekko & Scala

A Remote Code Execution System with Apache Pekko & Scala Rock the JVM

4.1K views - 1 year ago

The Power of Recursion - How To Think Code Clearly

The Power of Recursion - How To Think Code Clearly Rock the JVM

3.6K views - 1 year ago

Kotlin Scope Functions for Expressiveness: let, run, with, apply

Kotlin Scope Functions for Expressiveness: let, run, with, apply Rock the JVM

2.6K views - 1 year ago

htmx, ScalaTags and ZIO HTTP - Single-Page Web Applications in Scala

htmx, ScalaTags and ZIO HTTP - Single-Page Web Applications in Scala Rock the JVM

4.2K views - 1 year ago

Scala PostgreSQL Integration With Skunk

Scala PostgreSQL Integration With Skunk Rock the JVM

3.1K views - 1 year ago

Kotlin Tutorial - Kotlin at Light Speed, Part 5 - Functional Programming in Kotlin

Kotlin Tutorial - Kotlin at Light Speed, Part 5 - Functional Programming in Kotlin Rock the JVM

3.9K views - 2 years ago

Generative Art in Scala, No AI Required

Generative Art in Scala, No AI Required Rock the JVM

3.1K views - 2 years ago

Hands-on Kotlin Tutorial - Kotlin at Light Speed, Part 6 - Nullables, Special Methods, Extensions

Hands-on Kotlin Tutorial - Kotlin at Light Speed, Part 6 - Nullables, Special Methods, Extensions Rock the JVM

1.4K views - 2 years ago

Hands-on Kotlin Tutorial - Kotlin at Light Speed, Part 5 - Functional Programming in Kotlin

Hands-on Kotlin Tutorial - Kotlin at Light Speed, Part 5 - Functional Programming in Kotlin Rock the JVM

2K views - 2 years ago

Hands-on Kotlin Tutorial - Kotlin at Light Speed, Part 4 - Collections Standard Library

Hands-on Kotlin Tutorial - Kotlin at Light Speed, Part 4 - Collections Standard Library Rock the JVM

1.4K views - 2 years ago

Hands-on Kotlin Tutorial - Kotlin at Light Speed, Part 3 - Object-Oriented Programming in Kotlin

Hands-on Kotlin Tutorial - Kotlin at Light Speed, Part 3 - Object-Oriented Programming in Kotlin Rock the JVM

2.5K views - 2 years ago

Hands-on Kotlin Tutorial - Kotlin at Light Speed, Part 2: Syntax, Expressions, Control Flow

Hands-on Kotlin Tutorial - Kotlin at Light Speed, Part 2: Syntax, Expressions, Control Flow Rock the JVM

2.9K views - 2 years ago

Hands-on Kotlin Tutorial - Kotlin at Light Speed, Part 1: Getting started

Hands-on Kotlin Tutorial - Kotlin at Light Speed, Part 1: Getting started Rock the JVM

5.5K views - 2 years ago

Kotlin Type Classes - a Practical Pattern to Organize Your Code

Kotlin Type Classes - a Practical Pattern to Organize Your Code Rock the JVM

3.3K views - 2 years ago

How to Write Full-Stack Scala Applications - Typelevel

How to Write Full-Stack Scala Applications - Typelevel Rock the JVM

8.8K views - 2 years ago

ZIO Rite of Passage: A Full-Stack Scala Project-Based Course with ZIO

ZIO Rite of Passage: A Full-Stack Scala Project-Based Course with ZIO Rock the JVM

1.7K views - 2 years ago

A Load Balancer in Scala with Cats Effect and Http4s

A Load Balancer in Scala with Cats Effect and Http4s Rock the JVM

5.6K views - 2 years ago

Microservices and gRPC in Scala with FS2 and Scalapb

Microservices and gRPC in Scala with FS2 and Scalapb Rock the JVM

4.3K views - 2 years ago

Functional Error Handling in Kotlin, Part 3 - the Raise DSL

Functional Error Handling in Kotlin, Part 3 - the Raise DSL Rock the JVM

2.5K views - 2 years ago

OAuth Authentication in Scala with Http4s

OAuth Authentication in Scala with Http4s Rock the JVM

3.1K views - 2 years ago

Kotlin Context Receivers - How to Use, Why, and Best Practice

Kotlin Context Receivers - How to Use, Why, and Best Practice Rock the JVM

6.2K views - 2 years ago

Functional Error Handling In Kotlin: Either and Result

Functional Error Handling In Kotlin: Either and Result Rock the JVM

6.7K views - 2 years ago

HTTP Authentication in Scala with Http4s: Passwords, Digests, Sessions, JWTs

HTTP Authentication in Scala with Http4s: Passwords, Digests, Sessions, JWTs Rock the JVM

4.2K views - 2 years ago

Functional Error Handling in Kotlin, Nullables and Options

Functional Error Handling in Kotlin, Nullables and Options Rock the JVM

4K views - 2 years ago

Scala Server Security with Http4s: CORS and CSRF

Scala Server Security with Http4s: CORS and CSRF Rock the JVM

2.1K views - 2 years ago

Full Stack Scala 3 with the Typelevel Stack - a Conference Talk

Full Stack Scala 3 with the Typelevel Stack - a Conference Talk Rock the JVM

4.3K views - 3 years ago

Java Virtual Threads - How Virtual Threads Work, Scheduling, Cooperation and More

Java Virtual Threads - How Virtual Threads Work, Scheduling, Cooperation and More Rock the JVM

12.5K views - 3 years ago

The Typelevel Rite of Passage: A Full-Stack Scala 3 Project-Based Course

The Typelevel Rite of Passage: A Full-Stack Scala 3 Project-Based Course Rock the JVM

4K views - 3 years ago

Type-Level Programming in Scala: A Hardcore Tic-Tac-Toe

Type-Level Programming in Scala: A Hardcore Tic-Tac-Toe Rock the JVM

7.2K views - 3 years ago

Akka Streams - Working with Stage Actors

Akka Streams - Working with Stage Actors Rock the JVM

3.4K views - 3 years ago

Flink SQL Tutorial - a Gentle Introduction

Flink SQL Tutorial - a Gentle Introduction Rock the JVM

8.5K views - 3 years ago

Optimizing Kafka Producers and Consumers: A Hands-On Guide

Optimizing Kafka Producers and Consumers: A Hands-On Guide Rock the JVM

10.9K views - 3 years ago

Scala CLI Tutorial: Building and Running Scala, Directives, Scala Native and a Pure Sudoku Solver

Scala CLI Tutorial: Building and Running Scala, Directives, Scala Native and a Pure Sudoku Solver Rock the JVM

6.9K views - 3 years ago

Kotlin Coroutines Tutorial, Part 2: Cooperative Scheduling, Cancellation, Coroutine Context

Kotlin Coroutines Tutorial, Part 2: Cooperative Scheduling, Cancellation, Coroutine Context Rock the JVM

7.3K views - 3 years ago

Kotlin Coroutines Tutorial, Part 1: Suspend Functions, Coroutine Scopes, Async and More

Kotlin Coroutines Tutorial, Part 1: Suspend Functions, Coroutine Scopes, Async and More Rock the JVM

20.2K views - 3 years ago

Finagle Tutorial: Twitter's Scala RPC Library

Finagle Tutorial: Twitter's Scala RPC Library Rock the JVM

6.2K views - 3 years ago

Top 10 Skills to Learn to Be a Scala Developer

Top 10 Skills to Learn to Be a Scala Developer Rock the JVM

19.4K views - 3 years ago