The new federal minimum requirement that goes into effect Dec. 1 (for those in the special job-duties related exemptions; there's a higher one for pay alone) is $47,476/yr, anyway.
The California minimum for a salaried exempt employee under the exemption for computer-related professions is $87,185.14. [0]
The 2×minimum wage rule applies to professional [1], administrative [2], and executive [3] employees who have over 50% of their time in highly-responsible work of types defined in the law. It doesn't seem likely to apply to the entry level, and jr. dev positions you are talking about (and not "assistants", either, except for executive assistants to whom some portion of discretionary authority from the executive is delegated.)
And, in either the federal or state case, if they are paid less than that amount, they are not exempt from wage and hour (e.g., overtime) rules.
> I support raising the minimum wage in itself, but if that goes up anymore, I simply will not hire certain positions (entry level positions, assistants, maybe even jr devs) because it doesn't make sense at 2x for their skill level and/or role.
I don't understand this. Other than the fact that basically none of the positions you identify are likely to be covered by the double minimum wage threshold that you are complaining about (devs for sure would be covered by the much higher computer-related threshold, and generic entry level employees and assistants aren't likely to qualify under any exemption in the first place, regardless of salary), even if they were you absolutely can hire them for lower salaries, they just aren't exempt from wage and hour laws (e.g., overtime requirements, etc.) if you do. You seem to fail to understand either the applicability or the meaning of California's law here.
[0] http://www.dir.ca.gov/dlse/LC515-5.pdf
[1] http://www.dir.ca.gov/dlse/Glossary.asp?Button1=P#profession...
[2] http://www.dir.ca.gov/dlse/Glossary.asp?Button1=A#administra...
[3] http://www.dir.ca.gov/dlse/Glossary.asp?Button1=E#executive%...