Stefan Alexandru developed and integrated SonarQube quality scan workflows for the peviitor-ro/search-engine and peviitor-ro/oportunitatisicariere repositories, focusing on automating code analysis within CI/CD pipelines. Using Shell and YAML, Stefan standardized SonarQube configurations, including project keys, source directories, and exclusions, to ensure consistent quality metrics across both projects. The implementation supported Node.js 18 compatibility and enabled both on-demand and continuous quality scans, improving maintainability and feedback loops for developers. By aligning code quality tooling and automating analysis, Stefan enhanced the reliability of the development process without introducing new bugs, demonstrating a methodical approach to DevOps and code quality.