Every job is the job before the next job. The age of careers is long gone. My grandfather and my father got jobs (singular) and toughed them out for decades. I am not able to list all the jobs I've had. Technology jobs are all the more mercurial. Some of the best opportunities in life come from being in the right place to have semi-random encounters (see The Luck Factor PDF). If these claims are not false, the choice might be more clear to you now.