• I like what I do
• I get to travel and see the world
• I’m paid handsomely
• It’s a niche skill set that is hard to find
• plenty of job security
• I like my coworkers

…so yeah, I’d say it’s fulfilling

EDIT: To give a vague privacy friendly answer as to what I do, it’s a particular kind of IT, and it involves highly specialized purpose-built server clusters that spend most of their time on the backdeck of ships.