If your upper bound does not greatly exceed that number*, then all of the actually senior folks that I know are not going to be interested in your role. Most of my contacts are outside the Bay.

I know lots of people who would consider applying to your senior role, all else being good, if you're offering, say $250k or so -- but none of them are the people on my mental list of senior engineering contacts. Still, you might hire one of my mid-level engineering contacts, and you might be happy with them, since if you're paying only around $250k (or even only $350k) you probably won't have many of the other group to compare with (and all of the people whose names I'm thinking of are all great engineers)

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* assuming we're talking total compensation.