Martin Stühmer - Chief Technology Officer at Integrated Worlds GmbH

Martin Stühmer

Chief Technology Officer at Integrated Worlds GmbH

Stuttgart Region Germany

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Summary

🤩

Rockstar

🎓

Top School

Martin Stühmer is a technology leader and CTO with 12 years of experience steering architecture-driven digital transformation and agile delivery across consulting and product teams. Based in the Stuttgart region, he blends hands-on software craftsmanship (.NET, Azure) with strategic client engagement from roles at CGI and senior architecture positions. He teaches and practices Risk and Cost Driven Architecture (RCDA), translating pragmatic architectural decision frameworks into scalable, delivery-focused outcomes. An active open-source contributor, Martin has improved performance and maintainability in popular .NET projects such as Nager.Date and enhanced stack-trace tooling in Ben.Demystifier, showing attention to both developer productivity and runtime efficiency. Colleagues value his ability to bridge business context and technical trade-offs while coaching teams to embed architecture as an enabler of delivery. Outside work he balances a family life with continuous learning, bringing empathy and curiosity to leadership.

12 years of coding experience

6 years of employment as a software developer

Fachinformatiker für Anwendungsentwicklung, Fachinformatiker für Anwendungsentwicklung at Georg-Simon-Ohm-Schule Köln

German, English

Stackoverflow

Stats

111reputation

4kreached

7answers

0questions

Github Skills (23)

exceptions10

net10

dotnet10

data-api10

asp-net10

api10

stacktrace10

dotnet-core10

error-handling10

csharp10

reflection9

asp-net-core9

rest-api9

reflections9

testing8

Programming languages (11)

C#TypeScriptPowerShellJavaSCSSScalaJavaScriptGo

Github contributions (5)

nager/Nager.Date

Jan 2021 - Nov 2021

Worldwide holidays (REST API), NuGet or docker container :earth_americas:

Role in this project:

Back-end Developer

Contributions:92 reviews, 38 commits, 57 PRs in 9 months

Contributions summary:Martin primarily focused on optimizing the codebase and refactoring existing components. They converted the `NoHolidaysProvider` to a singleton to minimize object references and refactored the `DateSystem.GetWeekendProvider` for improved efficiency. Furthermore, the user updated providers for different countries and fixed several issues related to public holiday calculations. Their contributions demonstrate a strong understanding of the codebase and a focus on performance improvements.

public-holidayscalculate-holidaysc-sharpbank-holidayspublicholidays

benaadams/Ben.Demystifier

Nov 2019 - Dec 2019

High performance understanding for stack traces (Make error logs more productive)

Role in this project:

Back-end Developer

Contributions:7 commits, 8 PRs, 8 comments in 6 days

Contributions summary:Martin primarily contributed to the `ben.demystifier` project, focused on improving stack trace readability. They implemented features like supporting `params`, `Nullable<T>`, and `dynamic` parameters. Several commits involved refactoring and simplifying existing code related to method and parameter analysis within the `EnhancedStackTrace` class. Additionally, they addressed bugs and improved code efficiency by removing unreachable code.

tracesdotnetstack-tracesunderstandinglogging

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