[karmakaze]

> it just drives me insane to have someone other than me doing the "big picture" design work and getting to interface with the customer

Sounds like you want the role you had at the smaller company. At a larger company you'll typically either be a product person and talk to the customer, or develop the software, rarely both. Not all of them have solution architects, in which case you should be given the high-level 'what' problems to solve, and design/build it out filling in the 'how' (with the caveat that this can again be split into UX and backend). I have yet to see true fullstack development work well at a large company.