A.R.
Grapevine/Southlake has a great school system and would be about midway between your jobs. Coppell is another good option. Just know that the freeways going to Ft Worth are under construction (all of them) and the traffic can be a nightmare. Construction won't be done for a couple of years.
ETA - Rush hour FM to Ft. Worth is going to be about the same as Coppell or Carrollton. All those freeways around the airport are under major construction: 114, 183, 820, 35 - and they all back up pretty bad.