Very few, since Jainism is a split from the polytheistic Hinduism, and Jains are non-violent and reliant on self effort in progressing the soul on the spiritual ladder to divine consciousness. As an almost diametric opposite, Judaism is a monotheistic religion with a jealous and angry God who demands (and creates) extreme violence.
There are no similarities that I can see, except possibly that both tend to be well educated. Jains do not believe in a single God, are non-violent, believe that each individual can achieve divinity by his own actions, are ascetic, are totally honest in all aspects of their lives, and are detached from material possessions. Judaism is pretty much the exact opposite.