What is a tiler?

Speaking of a tiler on a building?

I'll explain in a very understandable and accurate but unprofessional way what it means to be a tiler:

1, a construction worker who does work containing cement, yellow sand and gravel.

2, the construction workers who do the work containing all the stone wall and floor tiles.

As long as it compounds one of the above 2, it's a tiler.

As long as it does not match any of the above, it is not a tiler.