She went to some local meetups, and got lucky to find a good developer.

So attend some meetups and ask around. If anyone is interested get work samples and vet by giving him/her a short paid relevant assignment.

You can also find great remote developers, but vet them with short communication and coding assignments. Github/Linkedin/Dribbble are good resources to find someone remote.

Good luck and I hope you find someone well rounded with excellent communication skills.