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.
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.
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
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.
While you’re busy optimizing database queries and adding cache layers, thousands of string searches per second are quietly eating your CPU budget. The problem isn’t visible in your APM dashboard because it’s distributed across every request. But it’s there. Compounding. Scaling linearly with load.
I discovered this the hard way when a log processing API started choking under production traffic. The bottleneck? String validation and sanitization. The fix? A .NET 8 feature that delivered a 5x performance improvement and let us shut down servers instead of adding them. And it’s gotten even better in .NET 9 and 10.
Clean Code is often praised but rarely practiced effectively. This article explores how misunderstood ideals and over-engineering harm .NET systems, how to recognize such failures early, and which C# best practices and official guidelines truly support maintainable software.
The ConstantExpectedAttribute, introduced in .NET 7, provides a powerful mechanism to signal compiler expectations about constant values. This enables better performance optimizations, enhanced IDE tooling, and clearer API contracts. Learn how to leverage this attribute to build more efficient and maintainable .NET applications.
In every mature .NET landscape, legacy projects represent both heritage and hazard.
They once powered entire business models — now they silently consume time, budget, and attention.
The decision to retire or modernize them isn’t about technology fashion. It’s about sustaining the organization’s capacity for value creation.
TUnit brings compile-time test discovery and native AOT support to .NET testing — but is it ready for enterprise adoption? A pragmatic analysis of performance gains, tooling maturity, and migration timing for teams evaluating alternatives to MSTest, xUnit, and NUnit.
