I have 15 years experience.
i used to work in London on Banking, big Pharma, Media projects as a contractor.
From simple coding, i moved up to leading projects as a systems architect. So i have seen the full lifecycle and the ramifications for how you built, test, deploy and update code.
These days i prefer the quiet life and working remotely on various projects.
Golang has been a revolution for me compared to all the other languages and runtimes out there.