Jakub Jareš
Senior Software Developer Engineer at Microsoft
Prague, Prague, Czechia
Summary
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Rockstar🎓
Top SchoolJakub Jareš is a senior software developer engineer based in Prague with 12 years of experience building backend systems, SDKs and test automation for Microsoft and enterprise clients. He’s fluent in C#, F#, PowerShell and Go, and has driven improvements across high-profile open-source projects like PowerShellEditorServices, the .NET SDK and Visual Studio Test Platform, focusing on test robustness, build reliability and deployment workflows. A former Microsoft MVP and PowerShell Community Hero, he speaks at conferences about testing and development and mentors teams on architecture and best practices. Jakub combines hands-on backend and CI/CD work with deep testing expertise—often fixing subtle compatibility and build issues—and has a track record of turning legacy systems into modern, testable services.
12 years of coding experience
11 years of employment as a software developer
school-leaving exam, Electrical engineering, telecommunications, and computer technologies, school-leaving exam, Electrical engineering, telecommunications, and computer technologies at SPSE Jecnajunior high, junior high at Gymnazium Celakoviceelementary school, elementary school at Zakladni skola Prerov nad Labem
English, Czech
Stackoverflow
896reputation
85kreached
21answers
2questions
Github Skills (43)
unit-testing10
cakephp10
pester10
mstest10
msbuild10
testing10
net10
dotnet-new10
dotnet10
testkit10
vscode-extension10
teste10
asp-net10
automation10
dotnet-sdk10
Programming languages (17)
Github contributions (5)
microsoft/vstest
Dec 2019 - Jan 2023
Visual Studio Test Platform is the runner and engine that powers test explorer and vstest.console.
Role in this project:
Backend Developer & Automation Engineer
Backend Developer & Automation EngineerContributions:28 releases, 1067 reviews, 240 commits in 3 years 2 months
Contributions summary:Jakub focused on improving the test platform by modifying the build process and test execution. They made changes to prevent assembly locking during localization builds and to use the `RunSettingsFilePath` from the project file when running tests with `dotnet test`. Furthermore, they updated the build script, integrated updates from the arcade repository, and addressed issues related to test verbosity and running tests within a test host.
visual-studiodotnetconsoletest-platformtesting
microsoft/testfx
Jan 2020 - Apr 2022
This repository holds the source code of Microsoft.Testing.Platform (MTP), a lightweight alternative to VSTest, as well as MSTest adapter and framework.
Role in this project:QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:7 releases, 422 reviews, 19 commits in 2 years 3 months
Contributions summary:Jakub's commits primarily focus on modifying and updating existing unit tests within the `MSTest.CoreAdapter.Unit.Tests` directory. These changes involve reverting a previous commit related to data-driven tests, fixing test parameters, and merging branch changes. Furthermore, the user addresses potential null references in error handlers, specifically within the test execution process, demonstrating a focus on improving the robustness and stability of the testing framework. The user also made adjustments to the output, which might indicate a focus on debugging or reporting.
mstest-frameworkdotnetmstestv2test-frameworktest-runner
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