Worked on security remediation and dependency hygiene for the elastic/crawler repository, focusing on upgrading protobuf-java from version 3.21.5 to 3.25.5 to address vulnerabilities identified by Snyk. Applied Java development and dependency management skills to update all relevant dependency files and replace the outdated JAR, ensuring improved build reliability and supporting compliance requirements. Established a clear audit trail through a traceable commit, which aids in future maintenance and verification. The work reduced the vulnerability surface of the project and contributed to more consistent builds, reflecting a methodical approach to maintaining software security and integrity within a Java-based environment.