It's not something that's a very big issue in Judaism. Some Jews believe in it; some simply say that we die, and that's it. We really just don't sit around worrying about the next life; we believe in living THIS one, because we KNOW we have that, and we believe that's why we're here. If there's a next life, then the powers that be will take care of it.
There is a concept of reincarnation in Judaism, but only in rare instances. Some believe that if a person's life is cut off abruptly, "before his time," that they may be "sent back" to finish up what they started. But there are about as many beliefs about what comes after this life as there are Jews to consider the issue. Our favorite saying: "Two Jews, at LEAST three opinions!" We love to discuss stuff, and argue about it.