For the curious, newer versions of MUMPS are still used as the core database framework by a lot of electronic health records companies. Most notably, it’s the backbone of Epic Systems, the largest EHR company in the US.
I was alone in a room with one of my interviewers, who seemed pretty sharp. I asked him "do you like working here?"
He looked at me, glanced at the closed door, leaned forward and said in a low voice "nobody likes working here. If you have another option, take it."
I thanked him and left and I'm very glad I did.
At least the front end is much more modern.
A few years ago, they _did_ develop a TypeScript wrapper framework (which was transpiled down into MUMPS). They heavily encouraged newer application code to use this, but it never caught on, was quietly abandoned after a bit.
Internally, MUMPS was often criticized or laughed at, but I doubt it’s going anywhere anytime soon.