The Feed the Future is a program of the U.S. government which focuses on improving the agriculture and the standard of living in developing countries. Below is a link to job opportunities:
Feed the Future has a variety of job postings open to support implementation of the U.S. Government Global Food Security Strategy.
We've compiled them into one web page here:
https://feedthefuture.gov/lp/o
This page will be updated as more opportunities arise.