rewrite this. I want to put it on linkedin

Now that I'm done with my PhD, I take a moment and look at the way I have taken to get to this point. 

I started as an electrical engineering doctoral student, while my background was in mechanical engineering and mechatronics engineering. So, I had so much stuff to self-study while working on my research, since I had to work on custom hardware design of brain-computer interfaces. This means that I had to learn digital signal processing and machine learning from one side, brain and neural systems from another side, and digital hardware design from another side.  Limit your response to 550 words.
user