Depending on your embryonic product and where you are geographically, you might be able to find someone excellent. You up your chances if building your product

Depending on your embryonic product and where you are geographically, you might be able to find someone excellent. You up your chances if building your product helps someone build a portfolio (especially open source). Offering some equity would be good too, but you'd have to very carefully balance the amount of ownership versus the candidates skill. My email is in my profile. Get in touch if you want to talk more. I might know someone who might be willing to donate some time, if the project is right.