Has he looked into finance? The UK banking scene is predominately in his age group (not that it matters). I'm 24 and worked in a team of people ranging from 30-60 i suppose. Also the sector is moving towards noSQL so it could be a good fit
I'm ben <squiggly a> perurbis <dot> com
Just like I hope that [your favorite social startup] does not have my user information in MongoDB. I don't want to lose my [points | badges | messages | likes | some other mundane detail that I cannot live without in my first world problem kind of way.