There is a huge void that you can fill with your skills here in Africa,that is if you are interested. I believe you will make more impact and touch lives than in the US,which i believe is saturated?
Our charity www.rose-international.org is looking to have a basic web app developed that will allow local m&e of donor money that is used to pay for school fees (Tuition is charged for public schools here, and many kids are orphaned and have no way of paying the school fees).
We also aren't shy about sending people to Zambia to help out. If you're curious, or want more information, my email is in my profile. I'd love to hear from you.