Worked on reliability and correctness improvements in open source Java projects, focusing on bug fixes that enhanced stability and security. In the JetBrains/intellij-plugin-verifier repository, addressed JAR filesystem caching by normalizing URIs, ensuring that different URIs referencing the same JAR were treated identically. This prevented resource leaks and premature closures in complex monorepo environments, with comprehensive tests validating the solution. Later, contributed to apache/httpcomponents-client by correcting the parsing of the HttpOnly cookie attribute, aligning with RFC standards and reinforcing secure cookie handling. Utilized Java and Kotlin, applying skills in file system management, HTTP, and unit testing to deliver robust solutions.