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Proven Instructor and Methods
Flipped Classroom: Students Drive
Short Classes Fit Busy Schedules
Only 4-6 per class
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Groxio Trainings Define Careers

Groxio's fiercely loyal students say our classes are carreer defining experiences. Our trainings have small classes where the students mob program on a common project and help each other to debug broken code when things inevitably go wrong. The instructor becomes a programming coach, and the student's only job is to break through.

Bruce Tate

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Professional Elixir 101

Elixir is a language with almost magical self healing properties. Its concurrency and reliability features make the language one of the most highest paid ones in the world, and its web frameworks show supreme power and astounding productivity. Before you can learn those tools, you need to know how the Elixir programming language works. Learn the important programming techniques you'll need to get to the good stuff, from data structures to functional programming.


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Professional Elixir and OTP

From the book Designing Elixir Systems with OTP, this course will arm you with understanding of the core Elixir abstractions you need to be successful. Going beyond a checklist of features, this class will provide you with systems to understand and instantly recall the important design considerations you need when you're designing any Elixir system, whether you're making a web app or a thermostat.


What to Expect

Good training starts with design and abstractions. This course is Groxio's primary Elixir course, covering basic design and abstractions for Elixir and OTP. Starting with the basics for idiomatic Elixir design, the training will take you beyond what you can find in books and online documentation. It will show you critical abstractions like behaviours and inversion of control that are much easier to absorb in a classroom setting. Custom versions of this course come in two to four days.

Software Layering
Functional Cores
Core Designs
Boundary Layers
Supervision Trees
Dynamic Supervision
Effective APIs
Data Structure Design

Duration: 2 1/2 Days

Nov 7- 8

Book a team training instead

How It Works

In Groxio courses, students go through the core abstractions for the course several times, using techniques like role playing and building simple solutions to build understanding and quick recall. Then, the students use that knowledge to build something nontrivial. Along the way, each student will get several chances to drive with coaching from the instructor and teammates in small groups. Each training is customized based on the progress and desires of the people in the class, so each class is a unique experience. After each session, the class convenes to discuss the techniques they applied.


Groxio courses emphasize breadth over depth. Additionally, Groxio courses will adjust to the skill levels and desires of the students. For these reasons, you should not expect an exhaustive list of language or framework features. Instead, you'll see a short, overarching broad list of objectives.

  1. Explore Elixir design concepts including function composition, organizational strategies, and Elixir data structures.
  2. Understand processes, message passing, and the Actor-based model in Elixir programs.
  3. Handle uncertainty and process machinery in an Elixir boundary layer with and without GenServers.
  4. Understand and apply Supervisor configuration.
  5. Apply GenServer message passing principles in an Elixir application.
  6. Understand why Elixir is a good language for managing concurrency and uncertainty.

Mid Beginner to Early Intermediate

You will need to know how to code Elixir, but extensive experience is not required. The small class sizes allow us the flexibility to address multiple skill levels in the same class. You should have a working installation of Elixir version 14, a working observer, and a working installation of Phoenix.

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Professional LiveView

From the book Programming Phoenix LiveView, this course will walk you through the strategies you'll need to build flexible, self-healing interactive web applications that scale well and survive the test of time. Focusing on design and abstractions, you'll learn how to layer your code with components and multi-layer APIs using idiomatic generated and custom code.


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Professional Phoenix with Ecto

From the book Programming Phoenix, this class is our de facto Phoenix back end course. We'll cover principles for working with multi-layered functional programming systems. On the data side, we'll get to know Ecto query design principles, and how to safely manage change with changesets. We'll work with boundary layers, and explore different ways to deal with failure. We'll explore advanced foundations of Phoenix from PubSub to plugs. This was the most requested course for Groxio to add in 2023.


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Why Do Groxio Students Love Us?

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“ I was really happy to learn about starting dynamic processes that I name on the fly. ”

Bill | Groxio Training

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“ I've been able to continue building my career in Elixir with confidence. ”

Liv | Groxio Training

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“ I always have fun. I'm a beginner and have to type in front of everyone. I just come as myself. ”

Paulo | Groxio Training

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“ It's about learning how to learn... allowing us to follow our own path. For me, it's life changing. ”

Christine | Elixir em Foco

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“ I learned important concepts to learn everything else in the Elixir Ecosystem. ”

Yuri | Groxio Training

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“ The biggest insight I had was the CRC pattern... That underlying pattern shapes programming. ”

Zaki | Groxio Training