How to integrate checkout API's that do not currently integrate with shopify- developer needed

[MichailKara]

Hi there,

I need help putting an API onto my current website with the shopify basic account and the streamline theme from archetype themes.
we are looking to integrate with 2 external companies for IOSS purposes that have API's that can calculate and collect tax from EU customers at checkout. We are looking for a developer to help us do this/

One of the companies called Taxamo Assure has said 

"Are you planning to hire a developer to integrate with Shopify? I ask this because we do not have an integration between Shopify and Taxamo Assure." 

The other company Hurricane has an API called Aura 
https://hurricanecommerce.com/wp-content/uploads/2021/02/AURA-Single-Page-Flyer.pdf

This is also not currently integrated with shopify.

If someone can help us with this would be much appreciated - look forward to hearing from you!