If I were you, I would apply for positions like the following ones in non-faang companies:
- Director of engineering
- VP of engineering
- Principal engineer
You have 15 years of experience and Microsoft in your CV. That’s all what it takes to impress non-faang companies. Research a bit what it takes to pass interviews for the positions listed above. Prepare yourself for a month or so and start applying. Fake it till you make it, you have all the “raw material” others would die for.