>By ten years of experience, you should probably have used all the major tech stacks in your area of expertise. If you're BE, probably Go, Node, Rails, Django,

>By ten years of experience, you should probably have used all the major tech stacks in your area of expertise. If you're BE, probably Go, Node, Rails, Django, Spring, maybe even PHP. If mobile you should be able to use native, capacitor, PWA, Flutter, React Native, maybe KMP. And so on. That's not real life. Most Devs get a job and learn a stack and then they stay in that stack unless there is a reason to change Most BE will know one of either Java or .Net or Python. As that is what most corporates use.