Joby Bejoy developed ML-DSA key and certificate support for the aws/rolesanywhere-credential-helper repository, enabling compatibility with ML-DSA-44, ML-DSA-65, and ML-DSA-87 key types. He updated the Makefile to automate key generation and certificate handling, and revised the signing logic to accommodate the new cryptographic standards. Using Go, he implemented unit tests to validate the new key and certificate flows, ensuring robust test coverage and backward compatibility. His work focused on enhancing cryptographic compatibility and improving security posture, with a technical approach that emphasized automation, maintainability, and risk reduction through comprehensive testing and workflow updates.