Maarten Balliauw

Maarten Balliauw

.NET and web. Works at JetBrains.

Antwerpen, Belgium


Maarten Balliauw loves building web and cloud apps. His main interests are in .NET web technologies, C#, Microsoft Azure and application performance. He is Developer Advocate at JetBrains. Creator and maintainer of https://speaker.travel. He's an ASP Insider and former Microsoft MVP. Maarten is a frequent speaker at various national and international events and organizes Azure User Group events in Belgium. In his free time, he brews his own beer. Maarten's blog can be found at https://blog.maartenballiauw.be.

Area of Expertise

  • Information & Communications Technology


  • .net
  • .net core
  • Azure
  • JetBrains
  • Software Architecture
  • Web
  • Web API
  • dotNet
  • performance

#nullable enable - unlock the power of C# nullability

Get ready to bid farewell to the dreaded System.NullReferenceException and step into the wonderful world of C# nullability!

In this session, we'll unravel the hidden magic behind nullability syntax and annotations, unleashing the power of static analysis. But hold on, it's not as simple as a sprinkle of ? and ! here and there. We'll delve into the depths and discover that it's no silver bullet either. Yep, you'll still need to keep an eye on those non-nullable variables!

Come along on a journey through the essentials of C# nullability, and let's explore techniques and approaches for integrating it into your existing code bases.

Nerd sniping myself into a rabbit hole... Streaming online audio to a Sonos speaker

After buying a set of Sonos-compatible speakers at IKEA, I was disappointed there's no support for playing audio from a popular video streaming service. They stream Internet radio, podcasts and what not. Well, not that service I want it to play!

Determined - and not knowing how deep the rabbit hole would be - I ventured on a trip that included network sniffing on my access point, learning about UPnP and running a web server on my phone (without knowing how to write anything Android), learning how MP4 audio is packaged (and has to be re-packaged). This ultimately resulted in an Android app for personal use, which does what I initially wanted: play audio from that popular video streaming service on Sonos.

Join me for this story about an adventure that has no practical use, probably violates Terms of Service, but was fun to build!

Debugging .NET apps with Rider

We've come a long way from the days of relying on "echo" statements to understand code behavior. Historically debuggers were used to help locate and fix bugs. Nowadays, the debugger can help you do much more than that. Are we using our debugging tools effectively?

In this practical and demo-driven approach, we will explore invaluable tips and tricks of the debugger tools available in JetBrains Rider, such as smart step-into, dependent breakpoints, the immediate window, and more. You will also learn new ways to use the IDE's debugger in your everyday work. Don't miss this opportunity to enhance your bug hunting skills and take your software debugging journey to the next level!

Get the maximum out of Minimal APIs with ASP.NET Core

A lightweight HTTP API can use a lot of the ASP.NET Core Middleware, such as routing, authentication and authorization. Using the full-blown MVC framework for such API is just overkill!

But MVC does have some things that you'll miss when using plain "app.MapGet": you have to handle HTTP request/response handling and model binding yourself.
ASP.NET Core 6.0 introduces the missing link between writing low-level HTTP and a full-blown MVC or Razor application: minimal APIs.

In this talk, we will explore what minimal APIs are, what they are not, and how/where your applications can benefit from this lightweight model to building HTTP applications.

Become a productive .NET developer with JetBrains Rider

With .NET Core, an explosion of .NET IDE's happened! There's good old Visual Studio, but also VS Code, VS for Mac, and JetBrains Rider. In this talk, we'll dive into the latter. We'll explore navigation, automatic inspections and quick fixes, code generation, built-in tooling like version control integration and local history and look at the special scenario's the debugger has to offer. Come to this session to learn about Rider, and learn plenty of tips & tricks to enhance your development productivity.

Microservices for building an IDE – The innards of JetBrains Rider

Ever wondered how IDE’s are built? In this talk, we’ll skip the marketing bit and dive into the architecture and implementation of JetBrains Rider. We’ll look at how and why we have built (and open sourced) a reactive protocol, and how the IDE uses a “microservices” architecture to communicate with the debugger, Roslyn, a WPF renderer and even other tools like Unity3D. We’ll explore how things are wired together, both in-process and across those microservices. Let’s dive in!

Maarten Balliauw

.NET and web. Works at JetBrains.

Antwerpen, Belgium


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