Yes but not a single software engineer or other engineer in my field has a professional engineer designation. It's not required to practice in most fields outside of civil/structural engineering.
Most of us in electronics in the 1970s in the UK had physics degrees I think. And when I moved sideways into software much later the physics background was eminently useful when modelling machinery and physical processes.
But I too have met engineers with music and also medical backgrounds. But that's all more than half a century ago, it seems that employers expect much more narrowly focussed qualifications these days.
And in case people are looking for an open source alternative, Fly.io's tokenizer is a credential-injecting proxy: https://fly.io/blog/tokenized-tokens/
