Within the last 4 years for sure, and before that as well. Not the norm, but for high performing engineers it’s definitely possibly without equity appreciation. But I do think it speaks to the parents comment — if you put in the extra work the payoffs at the right company definitely have higher ROI than two jobs where you’re lying / hiding / stressing about being mediocre. Just my two cents.

Note, it’s not just the initial promotion. It’s the wider compensation band it opens up.

which company? I've had friends get promoted at then Facebook and Amazon and not receive a 50% increase with EE/S let alone double. I doubt it happens very often even for top people unless they were underpaid.

I edited my comment but will reply here to for clarity.

It’s not the initial promo that necessarily gives you doubling. It’s the wider compensation bands the promotion opens up. Sustained performance can have high upside in a 2-4 year time horizon for high performers.