Worked on enhancing the Buffer API within the nodejs/node repository, focusing on improving compatibility and security for binary data handling. Developed a feature allowing Buffer methods to operate directly on Uint8Array instances, broadening the API’s usability for developers working with TypedArrays. The technical approach involved removing dependencies on internal writable properties, thereby introducing tamper protection and reducing potential security risks. This work was implemented using JavaScript and required expertise in API design and buffer management. The changes addressed compatibility issues and mitigated a class of tampering vulnerabilities, resulting in a more robust and user-friendly Buffer API for the JavaScript ecosystem.