I have slid sideways my whole career, ever farther from the full-stack origins careening through and past DDIMM controller firmware and hardware procedures (one of my first true loves), through functional testing (Python) and structural testing (VHDL) of processors, as well as the constrained subset of embedded C chip-ops. Also slid through that run-on. Now I'm prototyping some wizard shit (if you will will excuse my classical romulan) for a product in stealth.

TL;DR: If you are eager to learn and do, you can eventually switch to anything close to your current profession - in other words, this option is to not think about a big jump, imo, and rather small steps.