There are also exits along they way via acquisitions that can produce good outcomes. But overall yes, it's true that it's quite rare for a startup engineer to b

There are also exits along they way via acquisitions that can produce good outcomes. But overall yes, it's true that it's quite rare for a startup engineer to become a multi-millionaire based on a few years work early in their career. However it does happen and it's an opportunity uniquely available in the startup sector. The great thing is you have a choice. You can go work for an established company and make $150k+ or a startup that you believe in and would have fun at and maybe have a shot at really big money 5-10 years from now. Up to you.