It's only FOSS by appearance really - it's still a team of well-paid engineers that operate like any other startup, with the difference that you can read the code of their apps and the bug-tracker is public.
They operate on their own schedules and priorities, and it's tricky to get your PR into any of the clients.
Well paid, but not lavishly paid by Silicon Valley standards. Salaries listed in their IRS form 990 have the CEO making ~$200k and other engineers in the ~$120k-$180k range.
They operate on their own schedules and priorities, and it's tricky to get your PR into any of the clients.