Valentin Breuß
Head Of Software Development at BAUR GmbH
Feldkirch, Vorarlberg, Austria
Summary
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Rockstar🎓
Top SchoolValentin Breuß is a Head of Software Development based in Feldkirch, Austria, with over a decade of hands-on engineering experience and five years in senior leadership roles guiding software teams. He has progressed from embedded and application development to leading digital solution delivery and engineering organizations, most recently heading development at BAUR GmbH after steering engineering at TIG. A practical back-end contributor to notable open-source .NET projects like System.IO.Abstractions and FluentAssertions, he focuses on testability, robust file-system abstractions and clearer unit-test diagnostics—improvements that benefit large developer audiences. Valentin combines pragmatic refactoring and modernization (including .NET 7 support) with a strong quality mindset cultivated through continued training in software quality and development practices. Colleagues value his blend of technical depth and delivery orientation, and he often surfaces subtle reliability fixes that prevent tricky runtime issues in production.
5 years of coding experience
6 years of employment as a software developer
Matura, Matura at Bundesrealgymnasium FeldkirchDiplom, Diplom at Technische Universität MünchenGFU Cyrus AGSoftware Quality LabTrigon Entwicklungsberatung
German, English
Stackoverflow
59reputation
2kreached
0answers
1question
Github Skills (18)
assertion10
unit-testing10
filesystem10
testing10
net10
dotnet10
fluentassertions10
io10
asp-net10
tdd10
mocking10
csharp10
unit-test10
cross-platform9
refactor9
Programming languages (3)
Github contributions (5)
TestableIO/System.IO.Abstractions
Aug 2022 - Dec 2022
Just like System.Web.Abstractions, but for System.IO. Yay for testable IO access!
Role in this project:
Back-end Developer
Back-end DeveloperContributions:105 reviews, 7 commits, 130 PRs in 4 months
Contributions summary:Valentin primarily contributed to bug fixes and feature enhancements within the `system.io.abstractions` project. They addressed issues related to file moving operations, ensuring correct behavior with read-only attributes and handling file duplication scenarios. Additionally, the user implemented features to manage file creation, access, and write times within the mock file system. Furthermore, the user refactored the project, splitting it into wrapper and abstraction layers and enabling .NET 7.0 support.
fsdotnettestingsystem-ioio
fluentassertions/fluentassertions
Aug 2022 - Jan 2025
A very extensive set of extension methods that allow you to more naturally specify the expected outcome of a TDD or BDD-style unit tests. Targets .NET Framework 4.7, as well as .NET Core 2.1, .NET Core 3.0, .NET 6, .NET Standard 2.0 and 2.1. Supports the unit test frameworks MSTest2, NUnit3, XUnit2, MSpec, and NSpec3.
Role in this project:Back-end Developer
Back-end DeveloperContributions:76 reviews, 39 PRs, 171 comments in 2 years 5 months
Contributions summary:Valentin's commits primarily involve refactoring and improving string assertion methods within the FluentAssertions library. They focused on enhancing the failure messages for string comparisons, particularly for multiline strings, and implemented logic for more precise error reporting. The user also addressed code quality issues identified by static analysis tools and improved the testing coverage related to string assertions by introducing new test cases. These changes contribute to a more robust and user-friendly testing experience for developers using the library.
bdd-styleoutcomeunitc-sharptdd
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