I applied there years ago when I was still at a regional and never heard anything from them. I know a few people who have worked at Jeppesen but all were in the Denver office. I have heard Jeppesen is a good company to work for but in terms of cost of living Denver would probably be better than San Jose. If you do get a job offer there, remember to take the cost of living (and lack of flight benefits) into account before moving out there.