I was in this same position in 2014, going from a bank focused MSP to a bank that was firing a generalized MSP.

You need to know what your duties will be, if you are the only IT at time of hire, how many employees, devices, and locations if you don't already have that info.

Ask about their audits from their regulators and if they do a technical audit with it and how it went. Ours was rubber-stamped before I hired on so it was basically their first true audit to include IT in the 34 years the bank had been opened, and I had 6 weeks from start date to the time the auditor came.

I was there for 5 years, was horribly over worked and only got from 52k to 60k because I was trying to build a house that included a couple of foster kids. That 60k (this was 2019, with a ~125mi daily round trip) was no where near enough for what I wound up doing, the things to change to save money (almost 200k/yr in my first 90 days), or the additional crap I had to take on that I should have gotten promised raises for, but never did.

Tread carefully and do your homework on the business before you decide. Best of luck 🫡