> indeed.com puts the average software engineer in silicon valley at $112k with a $5k bonus per year
That figure or the number you edited it to at $141k, is on the low side. The median software developer in the US is at ~$110,000. The top 10% bracket starts at around $165,000.
Emphasis that $110k figure is median, average is higher. The average software developer in SV with 10 years of experience is going to be a lot closer to $200k or over.