Facebook API Postback Integration

I'm looking for a developer to set up API postbacks to Facebook using Anytrack from my existing Shopify store. The goal is accurate cross-device attribution.

Requirements:
- Use Anytrack's webhook to post back purchase and custom event data.
- Ensure cross-device tracking for accurate attribution.

Ideal skills:
- Experience with Shopify and Anytrack.
- Proficiency in API integrations and webhooks.
- Strong understanding of cross-device tracking.

Please provide examples of similar work done.