If Pathfinder Ryder manages to make peace with the krogan, Jonah is sent by the Initiative to the Elaaden Outpost. As a designer for agricultural machinery that performs best in arid conditions such as on Elaaden, he is tasked to develop agricultural techniques. In the outpost, he installs and tests an irrigation system.
He mostly works with the krogan biologists of New Tuchanka to provide them what they need. He is persuaded that, with his help, krogan will be able to grow crops on the planet.