Worked on the openshift/installer repository to address a validation issue in vCenter configuration, ensuring that error messages referenced the correct 'user' field as defined in the install-config.yaml schema. This targeted bug fix involved updating backend logic written in Go and revising associated unit tests to reflect the corrected field path and messaging. By aligning validation feedback with the schema, the work reduced user confusion and improved onboarding for operators. The approach emphasized robust unit testing and full traceability, tying changes directly to a documented issue and commit, and demonstrated careful attention to backend development and schema consistency.