Shopify Checkout Payment Integration with COD

I need a Shopify developer to integrate Shopify Payments and PayU Payment Gateway into my checkout. Additionally, I need a partial Cash On Delivery (COD) option that requires a fixed amount upfront for all orders.

Key Requirements:
- Integrate Shopify Payments and PayU Payment Gateway
- Implement a fixed upfront partial COD option

Ideal Skills:
- Extensive experience with Shopify
- Proficiency in integrating payment gateways
- Knowledge of implementing checkout modifications