Martin Stühmer

Hello there, I’m Martin, software architect and developer from the Cologne/Bonn area. Right from the start of my professional career, I decided in favor of .NET and Microsoft technologies and tools and have always incorporated them into my work. With more than 15 years of experience in the field of software architecture and development with .NET, my focus is particularly on increasing the quality and performance of development teams, the interaction of the software solution with the target environment and the actual application down to the last byte.

In my position as Director Consulting Services @ CGI, I act as enterprise architect and developer for cloud native and .NET solutions. I am also a trainer for cloud and software architecture. In addition to my professional life, I am involved in the open source communities and currently provide them with various NuGet packages with different focuses and functionalities.

A strong willingness to learn and develop is also part of my everyday life. This was taken to a new level for me in 2021 after I successfully completed my IHK trainer and my Microsoft certified trainer this year. In addition, I was able to qualify as a trainer for CGI’s Risk and Cost Driven Architecture program in 2022.

Published blogs

.NET 10 RC 1 is Knocking at the Door: Architectural Impact, C# 14, and Performance

.NET 10 RC 1 is Knocking at the Door: Architectural Impact, C# 14, and Performance

.NET 10 RC 1 is knocking at the door, marking the first release candidate and offering the .NET community a detailed preview of what’s to come in the next LTS cycle. While not the final release, RC 1 is “go-live” supported and represents the feature-complete platform that will soon become .NET 10 LTS. In this article, I’ll try to give a rough overview of the architectural impact of .NET 10 RC 1, focusing on the latest C# 14 features, under-the-hood performance improvements, and strategic considerations for the upcoming LTS.

Visual Studio 2026 - Why AI-Native Tooling Will Matter

Visual Studio 2026 - Why AI-Native Tooling Will Matter

Let’s skip the typical release-cycle enthusiasm for a second: Most IDE updates come and go. New features, some refactoring helpers, a bit of polish, then back to business as usual. Visual Studio 2026 is different. For once, the promise of “AI-native” isn’t just marketing. If Microsoft lands even half of what they’re previewing, it’s going to matter—a lot.

How to Use Copilot Without Becoming Its Puppet

How to Use Copilot Without Becoming Its Puppet

In a previous article, we laid it out – unfiltered: Copilot turns junior devs into syntax secretaries.

Not because it’s evil. But because it removes friction before understanding.

It gives you working code before you know what working even means. It creates the illusion of progress, while slowly eroding the very skills that define a software engineer: reasoning, decision-making, and technical ownership.