Martin Stühmer

Who I Am

I’m Martin, CTO at Integrated Worlds GmbH in the Stuttgart region. I’ve been building .NET systems for nearly 20 years—since Framework 2.0 when SOAP was cutting-edge and ORMs were controversial.

Today I lead technology strategy for cloud-native solutions on Azure. Before this, I was Director Consulting Services at CGI, working with enterprise teams on architecture and transformation. I’m a Microsoft Certified Trainer and IHK-certified instructor, and I maintain several open-source NuGet packages.

What I Do

As CTO, I don’t just make decisions from a distance. I write code, review PRs, debug production issues, and mentor teams. Technology leadership means staying hands-on and feeling the consequences of your choices.

As a trainer and mentor, I focus on fundamentals that outlast framework hype. Static analyzers, testing strategies, performance patterns, maintainable architecture—the stuff that actually prevents production fires.

As an open-source maintainer, I publish packages that solve problems I’ve hit repeatedly in real systems. When strangers depend on your code, you write better tests and clearer docs.

What I’ve Learned

Almost two decades means I’ve made every mistake: over-engineered systems, bet on Silverlight and WCF (oops), built “flexible” architectures that were just complicated, shipped code I’m not proud of.

Here’s what stuck:

  • Quality isn’t optional – Analyzers catch bugs in milliseconds, tests prevent regressions, and both are faster than firefighting
  • Fundamentals outlast frameworks – Patterns and principles survive; specific tools don’t always
  • Context beats dogma – “Best practices” depend on your team, domain, and constraints
  • Evidence beats opinion – Measure, benchmark, validate before deciding
  • Pragmatism wins – Good-enough architecture that ships beats perfect architecture that doesn’t

What I Write About

I share perspectives from production systems and real teams. I’m skeptical of buzzword-driven development and allergic to cargo-cult practices. If a trend lacks substance or a pattern doesn’t hold up under pressure, I’ll say so.

This blog is for developers, solution architects and operators who maintain production systems and care about quality, not just shipping fast.

Published blogs

.NET Job Scheduling — Choosing the Right Framework

.NET Job Scheduling — Choosing the Right Framework

Synthesizing the series into actionable guidance with feature comparisons, suitability ratings, and decision frameworks. Select the scheduler that matches your operational model, infrastructure constraints, and team priorities.
.NET Job Scheduling — TickerQ and Modern Architecture

.NET Job Scheduling — TickerQ and Modern Architecture

TickerQ represents the next generation of .NET schedulers with compile-time validation, reflection-free execution, and SignalR-powered monitoring. Understand when modern architecture patterns and performance optimizations justify adopting newer frameworks over established alternatives.
Power of Ten Rules: More Relevant Than Ever for .NET

Power of Ten Rules: More Relevant Than Ever for .NET

Gerard Holzmann’s Power of Ten rules prevented spacecraft failures and exposed Toyota’s fatal throttle bugs. Four rules transfer directly to C# with superior enforcement. Three become irrelevant thanks to the managed runtime.

The verdict: These principles aren’t just valid. They’re finally enforceable without heroic manual effort.

.NET Job Scheduling — NCronJob and Native Minimalism

.NET Job Scheduling — NCronJob and Native Minimalism

NCronJob leverages IHostedService for lightweight scheduling with zero external dependencies. Understand when minimal infrastructure and native ASP.NET Core integration outweigh advanced features for cloud-native architectures.
.NET Job Scheduling — Coravel and Fluent Simplicity

.NET Job Scheduling — Coravel and Fluent Simplicity

Coravel prioritizes developer velocity with fluent APIs, zero infrastructure, and integrated features like queuing and caching. Understand when convenience and rapid iteration trump persistence and clustering for practical application development.