administrador
/administɾaˈdoɾ/ · B2 · noun · m
administrator
👔💻 administrador = administrar (to manage) + -dor (one who does it)
Spanish -dor marks the person doing an action, like English -er or -or. Administrador is the one who administers: it can be a manager of affairs or the person who manages a computer system. It looks like English administrator, so the meaning carries over.