Jan Záruba
Senior Software Engineer at Microsoft
Prague, Prague, Czechia
Summary
👤
Senior🎓
Top SchoolJan Záruba is a Senior Software Engineer with 11+ years of hands-on experience building and modernizing large .NET systems, currently contributing to Microsoft's Identity team on cloud buildout, automation and modelling. He has a deep full‑stack background across C#, VB.NET, ASP.NET, SQL, AWS/Azure, Node.js and container/microservice migrations, and a track record of moving legacy platforms to .NET Core and CI/CD pipelines. Jan has led and mentored teams up to 20 engineers while also maintaining an active freelance practice tackling refactoring, performance tuning and greenfield projects for international clients. He is especially comfortable integrating complex audio/video and third‑party APIs, and has repeatedly reverse‑engineered undocumented services to deliver practical solutions. Known for unusual but pragmatic approaches, he blends low‑level interoperability (Win32, P/Invoke, C++/CLI) with high‑level cloud automation to solve hard engineering problems. Based in Prague, he holds an MSc in Computer Science and keeps a steady mix of long‑term product work and consultancy to stay technically sharp.
11 years of coding experience
17 years of employment as a software developer
Elementary education, Elementary education at U Školské zahrady elementary schoolMaturita (GCSE), Electrotechnics, Automation, Maturita (GCSE), Electrotechnics, Automation at Secondary School of Electrical Engineering V Úžlabině, Praha 10Msc (Ing.), Computer science, Msc (Ing.), Computer science at Czech Technical University in Prague, Faculty of Electrical Engineering
English, Croatian, Czech, Bosnian, Serbian, Arabic
Stackoverflow
910reputation
269kreached
14answers
0questions
Github Skills (116)
nunit10
asp-net-core10
asp-net10
code-analysis10
visual-studio10
roslyn10
dotnet10
csharp10
jscript10
html-parser9
testing9
htmlagilitypack9
test-framework9
fsharp9
read-write9
Programming languages (6)
Github contributions (5)
DzonnyDZ/JScript.NET
Aug 2015 - Aug 2021
Allow to build console applications, desktop applications and DLLs in JavaScript (JScript.NET) in Visual Studio.
Contributions:2 releases, 8 commits, 1 PR in 6 years
jscriptconsoledesktop-applicationsjavascriptdesktop
DzonnyDZ/Tools
Sep 2015 - Oct 2019
Contributions:2 releases, 20 commits, 42 pushes in 4 years 1 month
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