Mikael Smith worked on the apache/hadoop repository, focusing on backend development and network programming using Java. He addressed a security issue in Hadoop’s Datanode by implementing a fix for HTTPS redirect handling, ensuring that external clients requiring secure connections are properly supported. Mikael introduced a redirect rewrite handler that rewrites HTTP redirects to HTTPS, thereby enforcing secure redirection policies. He also developed comprehensive tests to validate the Datanode server’s HTTP policy behavior, improving reliability and interoperability with secure clients. This work demonstrated depth in HTTP/HTTPS protocol handling and testing, contributing to more robust and secure Hadoop deployments in production environments.