I’m a civil engineer who loves GIS because I know what it was like to work without it! I’ve been responsible for the creation and maintenance of my locality’s public works (my employer) GIS layers since the mid to late 1990s. That being said, civil engineering is still my main job function, and I am self trained in GIS.
check out ESRI for career opportunities. There are lots! GIS Jobs | Careers in Geographic Information Systems
My son is a senior at JMU. His main major is intelligence analysis. However, they require at least a minor. After bouncing around, he settled on double majoring in Geographic Science. He interned with a really strong company over the summer who offered him a job after graduation with a salary much higher than I would have guessed. The job encompasses both his GIS and IA skills.