[dorait]

Some companies do provide a technical track in which you can become a Principal Engineer with no management responsibility. But if you have experience in solving problems, you may be good as a mentor/coach to other devs.

The longer term solution to this problem may be technical consulting.

[reluctantly]

There is a technical track at my company and I'm fairly high on the IC track. I took a fairly good sized pay cut when I stepped back to IC, which I was completely fine with in exchanged for the type of work. The mentoring is one of the few things I like about managing, but there's so much other downside to my quality of life and my technical skills just suffer.