Ask HN: Regarding Bringing on Our 1st Technical Co-founder

We have met someone we would like to work who programs in Python. They seem like a good fit, and are ready to be on board. They currently have a full time position but are willing to quit to work full time if we can offer something in the form of equity and bring them on as a technical co-founder position.

Here is where we are at until this point. Two co-founders non technical. Working full time since September and have a working prototype we are privately beta testing. We have been working on this non stop without taking salaries, and have funded this ourselves. We currently have no funding but have applied to different startup accelerators (including Y combinator).

What is appropriate in terms of offering a percentage equity? And what sort of vesting schedule? If there are any other details or questions please feel free to ask in the comment section. Our startup is SpotHero.