My father was a truck driver.
truck driver (commonly referred to as a trucker, that's it
Yes, he did it for 20 years.
a truckie in Australia and New Zealand; a lorry driver, or driver in Ireland, the United Kingdom, 
He never was a trucker outside the US.
Trucker Path is an American transportation network company 
I have heard of them before.
transportation network company (TNC), sometimes known as a mobility service