Aside from where the startup is, it is also hugely dependent on who that first engineering hire is. If it's a junior developer with a lot of potential but not

Aside from where the startup is, it is also hugely dependent on who that first engineering hire is. If it's a junior developer with a lot of potential but not much experience that they are taking a chance on because one or more of the founders are quite advanced technically themselves and are willing to mentor, train, etc, even 1% is quite generous. If the hire is either on par with the founders in terms of technical skills and experience or even the sole technical employee expected to be lead the effort and eventually build the team, even 5% can be considered quite low, depending on what the founders bring to the table.