Christophe Zürn
Software Developer at SonarSource
Gland, Vaud, Switzerland
Summary
🤩
Rockstar🎓
Top SchoolChristophe Zürn is a software developer with 8 years of experience, currently contributing to SonarSource’s code quality tools from Gland, Switzerland. He specializes in back-end and full‑stack engineering with a strong security focus, having implemented vulnerability mitigations and refined static analysis rules across high-profile SonarSource projects for Java, JavaScript/TypeScript, and .NET. Christophe brings hands-on experience building REST services and mobile-related back ends from his time as Lead Development Engineer at Swissquote, along with front-end work in HTML5/JS and React. His open-source contributions emphasize reducing false positives, improving control flow analysis, and adding nuanced quality rules—work that improves developer tooling used widely in industry. Comfortable across the stack, he pairs academic training from EPFL with pragmatic production experience in testing, integration, and secure coding. A less obvious strength is his knack for converting complex static-analysis edge cases into reliable, maintainable checks that prevent real-world vulnerabilities.
8 years of coding experience
3 years of employment as a software developer
Master's degree, Computer Science, Master's degree, Computer Science at EPFL (École polytechnique fédérale de Lausanne)
Github Skills (27)
static-code-analysis10
javascript10
static-analysis10
sonarqube10
testing10
it-security10
net10
typescript10
dotnet10
eslint10
software-quality10
java10
security10
asp-net10
javas10
Programming languages (12)
Github contributions (5)
SonarSource/sonar-dotnet
Aug 2018 - Jan 2023
Code analyzer for C# and VB.NET projects
Role in this project:
Back-end Developer
Back-end DeveloperContributions:66 commits, 150 PRs, 247 pushes in 4 years 4 months
Contributions summary:Christophe's commits primarily focus on improving code quality and addressing security vulnerabilities related to cookie usage within the C# and VB.NET code analyzer. They fixed rule violations related to hardcoded credentials and implemented checks for correct event handler signatures. Additionally, the user corrected false positives in several rules by accounting for new coding patterns and improving the control flow graph for better analysis. These changes suggest a focus on refining the analyzer's ability to detect and report potential security issues.
roslynvbnetlanguage-teamcode-analyzercode-quality
SonarSource/sonar-java
Mar 2018 - Dec 2022
:coffee: SonarSource Static Analyzer for Java Code Quality and Security
Role in this project:Back-end Developer & Security Engineer
Back-end Developer & Security EngineerContributions:7 reviews, 71 commits, 108 PRs in 4 years 9 months
Contributions summary:Christophe's contributions primarily revolve around enhancing the security and code quality of the SonarJava project. They focused on identifying and mitigating potential vulnerabilities related to command-line arguments, standard input, and the use of sockets. Additionally, they implemented checks for incorrect assertion argument order and improved the handling of test assertions. Their work reflects a strong emphasis on security best practices and code maintainability.
static-analyzerlintersonarcloudcoffeelanguage-team
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.