Not sure how to measure developer demand, but as a "valley-insider" I regularly observe directly engineers being paid about 40% more today than they were in 200

Not sure how to measure developer demand, but as a "valley-insider" I regularly observe directly engineers being paid about 40% more today than they were in 2008. Also, I recently heard of a mobile developer getting a base salary of 900k, but that's hearsay so who knows.. In any case developer salaries have risen very sharply in my experience.