My Zen Cart store currently uses CEON's Advanced Shipper Module.
The problem is that now UPS and USPS have both since changed their API. I need someone to either fix the issues regarding UPS's change to XML/SOAP and USPS's new change in their API.
This solution could compose of writing an entirely new module that does exactly what Advanced Shipper module does, or to fix the current module.
If you are going to write another module, you should know how advanced shipper works. I'm using it because it allows me to control which products have certain shipping options. Some of our products can only be shipped via UPS. And the rest are usually USPS. Some products CANNOT be sold outside of the US, and some products don't have products to ship (Training seat reservations).
The module also allows customers to purchase a combination of products with those different limitations. For example, in the cart could consist of a product that can only be shipped through UPS, and then the others are USPS. So the cart separates the cost of the two products and gives two different rates, and totals the total shipping cost.
Applicants should know Zen Cart inside and out and should also familiarize yourself with CEON's Advanced Shipper module.