Costin Zaharia
Software Developer at SonarSource
Geneva, Geneva, Switzerland
Summary
🤩
Rockstar🎓
Top SchoolCostin Zaharia is a software developer based in Geneva with six years of professional experience and a decade-long background in .NET development. He currently contributes at SonarSource, focusing on improving .NET static analysis and the SonarScanner tooling, including test, dependency, and coverage integrations for modern C# and VB.NET. Previously he progressed through engineering and architect roles at Ullink and coresystems, combining hands-on coding with product-facing technical design. An active open-source contributor, Costin has implemented language feature support in widely used projects like StyleCopAnalyzers and helped modernize SonarSource repositories for incremental PR analysis and security scanning. He is skilled at reducing code smells and improving test quality, often addressing subtle test false positives and build issues that unblock teams. Comfortable across backend and full-stack responsibilities, he brings practical tooling expertise that improves developer experience and CI reliability.
6 years of coding experience
11 years of employment as a software developer
High School Diploma, High School Diploma at Colegiul National C. NegriUniversitatea Babeș-Bolyai din Cluj-Napoca
English
Github Skills (26)
unit-testing10
msbuild10
testing10
net10
dotnet10
asp-net10
vbnet10
code-analysis10
compile10
coverlet10
dotnet-core10
compiler10
csharp10
vnet10
test-automation9
Programming languages (8)
Github contributions (5)
SonarSource/sonar-dotnet
Oct 2019 - Jan 2023
Code analyzer for C# and VB.NET projects
Role in this project:
Backend Developer
Backend DeveloperContributions:12 releases, 2001 reviews, 588 commits in 3 years 4 months
Contributions summary:Costin primarily worked on improving the SonarSource .NET code analyzer for C# and VB.NET projects. Their contributions focused on upgrading test project dependencies and supporting the latest C# and VB.NET versions. Additionally, the user addressed code smells and FP in tests by reviewing code and adding improved test cases.
roslynvbnetlanguage-teamcode-analyzercode-quality
SonarSource/sonar-scanner-msbuild
Aug 2021 - Jan 2023
SonarScanner for .NET
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:1 release, 608 reviews, 44 commits in 1 year 6 months
Contributions summary:Costin's commits primarily focused on enhancing the SonarScanner for .NET project. They updated assembly names to align with sonar-dotnet, implemented a WhiteSource scan for security, and integrated the coverlet coverage collector for testing. Furthermore, the user worked on incremental pull request analysis features and updated Java integration tests dependencies, showcasing a diverse set of contributions across different aspects of the project. The user also cleaned up the code and fixed various build issues.
dotnetsonarcloudlanguage-teamsonarscannercsharp
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