I was going to make the same comment. I believe he worked as a developer for RIM (Blackberry). I would urge all to check him out on YouTube. Entertaining and you will likely learn something new.
My only regret about getting into his channel is that now I have seen all of his videos and I have to wait 7 days for each new one.
His channel is great for more than just its content; it's also inspirational. My father has been a hobbyist woodworker and he has a small basement shop. Growing up I would frequently be down there with him 'helping' here and there, but never really built much of anything on my own besides a few small projects.
Watching Matthias' videos rekindled my interest in the hobby and I even picked up some new tricks along the way. It has also been great to get back into the shop with my dad and spend real quality time with him.