Michal Virgovic worked on two open source projects, focusing on both documentation reliability and scalable controller development. In the codefresh-io/argo-cd repository, he improved developer onboarding by fixing a broken Markdown link, ensuring documentation integrity across environments. Later, in the external-secrets/external-secrets repository, Michal migrated the External Secrets Controller from Kubernetes Endpoints to EndpointSlices, updating RBAC permissions and refactoring readiness checks for better scalability and startup reliability in large clusters. His work leveraged Go, Kubernetes, and YAML, demonstrating depth in both infrastructure and documentation. Each contribution addressed specific pain points, resulting in more robust and maintainable project foundations.