There isn't always a position open, you can't assume that every company had unlimited funds to hire unlimited engineers. For example at my company we keeep sev

There isn't always a position open, you can't assume that every company had unlimited funds to hire unlimited engineers. For example at my company we keeep several slots a year open for co-ops but not that many full-time positions open up. But we aren't in SV so I guess it may be different for huge SV companies who churn through employees.