Hi and technical artist position information

Hi all,
I am a 3d designer and I have been working as 3d artist for the last 7 years. Recently I decided that I was a little bit bored so I started fooling around with unreal and I love it.
because I have some coding knowledge and all my 3d background I thought that a interesting change in my career would be to become a technical artist.
the problem: I don't even really know what is a technical artist.
I have made a couple of scripts (that I will post here this week) as I think is a good starting point but any recommendation about what should I know is very welcome.