Shopify Regional Order Tagging

I need a Shopify expert who can create a system to automatically tag orders based on the shipping address being more than 15km from a specific location. Here's what I'm looking for:

- Developing an automated tagging system on my Shopify store
- Skillfully handling Shopify's platform functionalities
- Seamless integration with my existing order processing workflow

Ideal Skills:
- Proficiency in Shopify's admin API
- Experience with automation tools or custom scripts
- Strong understanding of e-commerce order fulfillment processes

Please provide examples of similar systems you've set up. Experience with Shopify automation is a must.