Fluxstore/Flutter modifications / WP/WooCommerce required

I want to advise the following: The work needs to be performed on our VM Mac, which is on the cloud. It's accessible via Windows RDP and through Web access. Source code cannot be provided to you to work on this on your computer. This is non-negotiable.

I need a dev to work with me on some changes to my Fluxstore/Flutter & WordPress/WooCommerce app.

Changes required:

• I need to edit the checkout page on the app to have a couple extra fields.
- These fields should sync to the customers' profile & order.
- The fields are things like "where should we drop off, buzzer number, floor number".

• I need to re-arrange the Profile items.
- Things like, username, profile name

• We need the WP User "Phone number" field to sync with the app <> site.
- It needs to send an OTP via Digits plugin (as we have now), to verify the change. Fluxstore already supports login/register integration via Digits.

• We need to make gift cards being able to sell on the site. Right now we have Yith GF but we can use any one, that is easy to integrate with the app.
- There is no integration atm with this type of thing on flutter that we're aware of

Those are the changes required at this time.
Please PM me with your offers.