Hi!
In your case, however, the answer probably is: you cannot contribute there at all, since you are a Wikimedia employee and this is a content-related community discussion. ;-)
Many WMF employees contribute to wikis in their non-work time, as far as I know. I don't even seek to participate in the discussion (though I don't think WMF employment would disqualify me from contributing in volunteer capacity, given my affiliations - as they are - are clearly stated) - but only to know the results so I could contribute in editor capacity, following whatever rules are there.