Why would you be happy doing this type of work?
Because it's the kind of work I've always enjoyed doing. All the tests I took early in my career said I was best suited for this kind of work. I agreed and made my career plans accordingly.
Someone who likes his or her work demonstrates enthusiasm, initiative, and energy that others can't match. There's a great law of life that few people realize: We like most what we do best, and we do best what we like most!