E-commerce Developer for Multi-Platform Integration

I need an experienced e-commerce developer to finalize my Grace & Grind online store and integrate it with Shopify, Amazon, and Etsy. The core stack is set up (Netlify + Supabase + Stripe/Snipcart + Printful + SendGrid) and about 80% complete.

Key Tasks:
- Fixing checkout/cart/favorites
- Ensuring Printful product sync
- Finalizing forms & email flows
- Setting up Shopify, Amazon, and Etsy integrations
- Security (env vars, webhooks, key rotation)
- Other code enhancements and bug fix
- QA testing before launch

Ideal Skills & Experience:
- Strong background in e-commerce development
- Experience with Netlify, Supabase, Stripe, Snipcart, Printful, and SendGrid
- Familiarity with Shopify, Amazon, and Etsy integrations
- Strong security practices
- Attention to detail and thorough QA testing

Please include relevant experience in your application.