Shopify Loyalty SaaS App Development

I'm seeking a skilled full-stack developer (or team) to build "Intellix Loyalty", a comprehensive Shopify loyalty and rewards app. This white-label SaaS platform will enable merchants to reward customers with points, store credit, and tiered perks both online and in-store.

Key Features to Develop Include:
- Points system: earn & redeem based on rules
- Store credit issuance & redemption
- VIP tier levels with upgrade logic
- Referral program: unique links, rewards, tracking
- Campaign triggers: birthdays, inactivity, etc.
- Customer portal widget: points balance, VIP tier status
- Admin dashboard for merchants
- Integration with Shopify Admin & Storefront API
- Shopify Billing API for subscriptions

Ideal Skills and Experience:
- Proficient in full-stack development
- Experience building Shopify apps
- Strong knowledge of API integrations
- Familiarity with loyalty programs and rewards systems
- Ability to create scalable, production-ready applications

Please provide a portfolio showcasing relevant work and a brief outline of your approach to this project.