Can anybody (excluding me, of course) see my voting history?
Do moderators have access to that?
No, moderators cannot see your exact voting history.
For technically reasons it is of course possible for the SE staff to retrieve this data, but my understanding is that they don't do this without good reason.
It is, however, possible for moderators to see some statistics about your votes. For example they are able to see when you have certain patterns of voting for specific users. These measures are for detecting fraudulent voting patterns. Which posts specifically have been voted on is unavailable.