If you're not Jewish and of Jewish ancestry?
You're screwed. There is no easy way to gain
a long term visa otherwise.
I personally know several non-jewish ex-pats living and working in Israel (and a ton of jewish ones), so it must be at least possible (although might not be easy).
If you know how they got their visa that could be very interesting. From what I read, the other major way to gain work entry is to have a company sponsor you (which your own startup doesn't usually count for that).
