TL;DR: I want to quit my job, take time to think, look at other jobs, and maybe get hired back if both me and my boss feel like it. How can I proceed ?
There are similar questions but my plan is different. I don't want to quit like "I'm off to infinity and beyond" quit. I want to be honest about my hope to come back if issues are resolved, salary negotiations properly done, and mental/physical health improved.
Is it reasonable, and if is, how can I do ?
Lately I felt the need to quit because of
stress related health problems
having 1 (or 1.5 ?) project managers over me to manage a great and unclear number of simultaneous projects.
because of that, doing everything without having matching pay (15% underpayed), authority, and defined role AKA "we don't get bored here"
things rely too much on me. I'm regularly asked to do and know new stuff, then I add it succesfully to the evergrowing pile of what I manage. It goes faster than I can document, teach, delegate, and improve tools.
not feeling understood. When I talk about these issues, I get positive feedback, promises, things change during 2 weeks, and then it comes back to the same state.
I thought maybe getting away could sort those issues. I would get the rest I need, a fresh mind to think about what job I want. Moreover, the company I work for would be forced to fix those problems. They would have no other choices than choose tool improvement over documentation and ninja secrets learning. Choose less projects over trying to do everything at once. I see this as a win-win perspective.
However I like my job and my colleagues and I have the hope to see my company resolve those issues without my help - I mean THANKS to my absence of help. So I don't see why I couldn't get back on board after that. Two of my older colleagues have done that successfully. Both for them and for the improvement of organization. My hierachy trusts me and needs me bad, alas too bad for my own good.
EDIT : I'm not looking for a safety net, as I am guaranteed to find job anywhere else, plus my boss once said "don't hesitate to come back" to a resigning former colleague (even if that former colleague was less trusted).
Context : first job after graduation, 9 years experience, software development, France.