At the age of ~35, I'm about to start my fifth academic appointment at the postdoc/staff scientist/research fellow level. The apparent lack of progress, both career and research-wise, has made me want to consider a chance of scenery.
In my present line of work, one picks up a great deal of knowledge about the various things needed to make the lab "tick", ranging from high-tech instruments to utilities, without ever really attaining a professional level of expertise in any particular topic.
Are there any enterprises willing to overlook a lack of formal qualifications for a jack of many trades with a PhD? I believe there are many competent people in the same boat across the various STEM disciplines.
The big upside was that it was a job that you don't need any specific credentials to get, and it gave me the perspective and "soft skills" - really just learning how to work in a team outside an academic setting - to get a tech job that could use some of my academic background as well as the business experience I had.
As a rocket scientist, speaking figuratively, you are already drastically to be a software engineer. I would spend a year full time outside of your day job vigorously building a software side project embracing hard problems. You should them have no problem sliding into a good software engineering job.
I work for a big bank and one of my coworkers is a software engineer who in a previous life was a particle physicist on the Super Collider Super Conductor project.
for banks/hedge funds/etc roles, look at the book "Capital Markets for Quantitative Professionals" to get up to speed on background knowledge.
I went to industry immediately after grad school and it has been pretty dope. It might feel differently to you, since you spent so much time in the academy.