Rosalie is a developer (formerly intern) at WMDE. As Rosalie's manager at WMDE, I confirm this by submitting this request.
Please grant her +2 permissions on mediawiki/*, to align with other WMDE developers.
Her Gerrit/LDAP username is: Rosalie Perside (WMDE).
Technically speaking, it probably entails adding Rosalie's user account to wmde-mediawiki group on Gerrit.