Venus is hot enough to sterilize anything that even approaches its surface. Earth's most radical extremophiles don't even come close to being able to withstand that. Even life made out of many common metals wouldn't be able to exist because it would melt them.
Since we don't know the limits of what might be considered "life," I suppose we can't 100% say it's impossible, but that's why I said "life as we know it."
There are many materials that melt above 500C, so it gives theoretical possibility for existence of life on Venus.
I couldn't be carbon-based life though.
BTW, Venus civilization would have similar reasons of not going to Earth as our reasons are of not going to Mars: way too cold and not sufficient atmospheric pressure.
I understand that it's extremely unfriendly to Earth's life forms, but life could be based on different chemical elements?
How do we even know that Venus does not have life?
Venus could even have civilization at the technical level Earth had it until couple of hundred years ago and we still wouldn't know about it.