Typical comp shape
Engineering managers usually earn similar to senior ic; rank-based. Common employers include Amazon, Microsoft, Salesforce.
What Hawaii changes
In Hawaii, every RSU vest, NSO exercise, and ESPP purchase carries 11% state tax on top of federal. For a senior engineering manager with $300k+ of equity income, the state layer routinely adds $25-45k to the annual bill.
Planning cadence
For a engineering manager in Hawaii, the three planning windows are: after each RSU vest (withholding check and sell-vs-hold), before any ISO exercise (AMT model at federal only), and in Q4 (estimated tax top-up to clear the safe harbor).