PHP Expert for Saas Project

We have an existing very customized project that needs improvements, bug fixes, and further development. The project is based on PHP/Javascript and interacts with three APIs: Shopify, Stripe, and a third custom API. The developer will be responsible for reviewing existing code, recommending improvements, fixing bugs, and implementing more features. This is a potentially long term project paid hourly.

Must have:
- Shopify Storefront API or JSBuy SDK experience
- PHP experience
- Ability to overlap 4 hours with US PST timezone

Nice to have:
- Python / Django experience