Aerospace: Most people are unaware of California’s role in aerospace technology and research, which takes place at institutions located throughout the region. In fact, according to a 2014 report, this industry is actually larger than agriculture and Hollywood, combined. This is good news for those interested in engineering, aeronautics, astronautics, and of course science. Indeed has a pretty solid section for related jobs, which include titles like data analysis engineer, laboratory structure test mechanic, and aircraft design engineer.