Rivindum Mendis enhanced security and configurability in the wso2/reference-implementation-consumerdatastandards-au repository by enabling client-controlled signing algorithms for Open Banking authorization responses and enforcing a PS256-only policy through TOML configuration. In wso2-extensions/identity-inbound-auth-oauth, he implemented ES256 and RS384 JWS algorithm support for OAuth2 utilities, updating constants and mappings in Java and adding unit tests to ensure robust token validation. He also upgraded identity framework dependencies in wso2/product-is to reduce drift and improved test reliability by correcting assertion logic. His work demonstrated depth in backend development, cryptography, and configuration management, addressing both security and maintainability requirements.