I wouldnt worry about padding it out, you dont want it too long anyway, I just list each job and have bullet points of the main roles I did in each job. I also have a little summary paragraph at the beginning that fully details my experience which is the bit I generally tweak dependant on the role I am going for.
Just keep it short and concise so he knows at a glance you can do the job you are going for, and highlights the things he and you would flesh out in an interview.
Decent start guide here is ITrelated but still worth a read.