You can try the Slack #Careers channel
There isn't a job board anymore. This might return in the future, but won't be of help for you now.
Finding an experience Mx developer in Texas/US is hard. If you do have experience java/.net/… developers, learning Mendix with a steep learning curve is the best route to take.
If you need assistance on this, being a Mx trainer for 12+ yrs I might be able to help you ;-)