Outside of the published stories, we've also placed technologists into innovation hubs to support startups, with social enterprises, universities, and also into nonprofits (including the Red Cross in Kenya) for roles from database management to devops to full stack web development.
I loved this article. Really hits at the problem we're trying to solve. We find these 6 questions helpful to ask if you should (or shouldn't) volunteer your skills overseas: blog.movingworlds.org/6-questions-to-ask-yourself-before-volunteering-overseas/