Tibor Blénessy
Staff Software Engineer at Sonar
Košice, Region of Košice, Slovakia
Summary
🤩
Rockstar🎓
Top SchoolTibor Blénessy is a Staff Software Engineer with 11 years of experience, specializing in static analysis, code security, and language-aware tooling for Java, JavaScript, and TypeScript. Based in Košice, Slovakia, he has driven rule development and quality checks for SonarSource’s flagship analyzers (sonar-java and SonarJS), improving detection across annotations, string handling, JSX parsing and other nuanced language features. His background spans enterprise financial messaging and Java web applications, giving him practical expertise in reliable, production-grade systems. Known for balancing deep language semantics with pragmatic engineering, he enhances both analyzer precision and test coverage to reduce real-world security and quality risks.
11 years of coding experience
10 years of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at Charles University in Prague, Faculty of Mathematics and PhysicsErasmus exchange student, Software Engineering, Erasmus exchange student, Software Engineering at Università della Svizzera italiana (USI) / University of Lugano
English, French, Slovak, Czech
Stackoverflow
4,322reputation
386kreached
61answers
8questions
sonarqube
top-1%
logging
top-5%
java
top-5%
Github Skills (23)
javascript10
static-analysis10
sonarqube10
testing10
typescript10
eslint10
software-quality10
java10
javas10
code-analysis10
typescript-types10
typescripts10
security9
logging9
jsx8
Programming languages (14)
Github contributions (5)
SonarSource/SonarJS
Jan 2018 - Jan 2023
SonarSource Static Analyzer for JavaScript and TypeScript
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:37 releases, 640 reviews, 390 commits in 5 years
Contributions summary:Tibor contributed primarily to the JavaScript and TypeScript codebase of the SonarJS project. Their work involved fixing bugs in the parsing of JSX member expressions and modifying code related to the generation of code quality rules. The user also updated dependencies, added new code quality rules, and refactored existing code to improve performance. Furthermore, the user worked on improving the test coverage and ensuring the code's compliance with JavaScript and TypeScript standards.
static-analyzerlintersonarcloudlanguage-teamjavascript
SonarSource/sonar-java
Nov 2016 - Jul 2020
:coffee: SonarSource Static Analyzer for Java Code Quality and Security
Role in this project:Back-end Developer
Back-end DeveloperContributions:6 releases, 4 reviews, 361 commits in 3 years 8 months
Contributions summary:Tibor primarily contributed to the codebase by implementing new rules and features related to static analysis for Java code quality and security within the SonarSource/sonar-java repository. They focused on improving checks related to various Java features, including handling of annotations, String literals, and methods. Their work involved modifying existing code, adding unit tests, and creating new rules, which demonstrates an active role in enhancing the static analysis capabilities of the project.
static-analyzerlintersonarcloudcoffeelanguage-team
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