If a co-founder is a software developer, I'd like someone with experience writing a web app front to back. Maybe someone that specializes in something I'm not too familiar with. I noticed you're into systems programming, I'd love to work with someone with that kind of experience!
As far as qualities go, I'd like someone who can work remotely and get shit done. Someone that will communicate immediately how they feel about the project. For example, if they didn't want to be a part of it anymore, they would just come out and tell me and not just disappear.
I am currently living in Midland, TX. I'll be moving to El Paso, TX soon. Nearest tech city is Austin, TX. I drive there occasionally for meet ups. As soon as my wife finishes school, we're off to California.