Miguel contributed to the Khan/jenkins-jobs repository by enhancing deployment workflows and addressing critical CI/CD issues over a two-month period. He implemented a GraphQL safelist extension in Groovy, allowing Jenkins-created ZND deployments to proceed without manual intervention, which improved automation reliability. Miguel also enabled temporary support for non-master branch deployments to facilitate frontend repository decoupling, using Jenkins Pipeline and Groovy scripting to manage workflow changes. Additionally, he resolved a sorting bug in Jenkins Groovy scripts by introducing a helper function that correctly maps commit hashes to branch names. His work demonstrated depth in CI/CD automation and deployment pipeline maintenance.