You may not need a PhD or tons of experience to learn Deep Learning, but what about the gap between that and getting a job?
If you are that type of person then you can kill it with just a few weeks of hard study on your own.
False. Being a great software engineer is not enough to get a job in deep learning. For the same price, or a little more, you can hire an "expert" scientist or engineer with a PhD in CS/stats/ML.