I actually just refer to myself as a Digital Janitor these days, even though I'm hired as SRE. Funny enough, it's met with much more understanding, and it is ironically kind of fitting as well.
I'm fine with that though, honestly. Plumbing is a super valuable profession
On my more ambitious days, I still would rather be a Software Gardener than a Software Engineer though
I've been thinking its less "Tech Debt" and more "Tech Sewage", as with sewage its a part of our normal day, and we just flush it down the drain hoping it never resurfaces, or at least that we won't be the one dealing with it.