I just left my current job of six years. Last January I applied and got a supervisor role which would put me on a team of 3 other sups (large client). Instead without any heads up they shifted that role to have me on-board two completely new clients by myself. This meant establishing processes, creating build documents, essentially becoming the first point of contact for information and escalations, and being at the clients beck and call.
Immediately I knew I would need lower and upper management to be assigned to these clients as the workload was becoming unmanageable. Every time I asked, the canned response would be “0h, we are working on it.” Or “It's in the pipeline.”
I started my new position in January 2021, and quickly burnt myself out by August. By this time they assigned me a lead tech, but the need to be “on” 100% of the time, and being called on how to do things even on vacation, after hours, and days sick, made me mentally check out.
A new job prospect presented itself to me and I gave them a 2 month notice. The idea was that there should be more than enough time to teach up a replacement.
To my surprise they opened 5 total positions almost immediately and got them filled. 2 leads 2 supervisors, a dedicated manager, and they staffed all the techs up for the 2 clients I was managing. Must be nice that the ship I'm jumping off finally has all it's sails up.
Oh and when I told them the news, no counter offer was ever put on the table. Just “alright” (not like I would have stayed anyways). And that teaching period I gave to them ended up being management pulling me into a meeting on my last two days with my replacement “so let's write down everything you do and how you do it.”
In my humble advice, if there isn't a snowballs' chance you are going back to the place, just leave.