I'm not quite sure what a technical officer is. I think it was his job to order parts and such for the aircraft. He also was a pilot, and I know he had at least 2 kills. I read it somewhere in one of the Kildruff books.
Actually, I just found something more. on page 130, it says that Krefft did the same job for JG1, while the larger administrative tasks went to Obltn Karl Bodenschatz from
Jasta Boelcke. My guess is they did the paper work and such for the staffel, as well as making sure there is supplies. This is only a guess though.
Hope that helped a bit.
Naval 10