Argo Workflows and Argo CD are powerful tools, but unifying them under a multi-tenant experience is necessary to run at scale across multiple teams in any large organization. Argo Workflows and Argo CD use different approaches to RBAC and both have different security considerations and available security features. We at Ethos, the Adobe Cloud Platform, have designed an architecture to create a secure multi-tenant CI/CD experience for our developer teams. Join our talk to learn how we achieved multi-tenancy through the isolation of each component of our developer CI/CD workflows, such as building, scanning, pushing, workflow artifacts, workflow secrets, as well as the restriction of application deployment with Argo CD AppProjects and RBAC.