WordPress Plugin Developer for Subscription Pass, QR Redemption & Vending Machine Integration

We are looking for an experienced WordPress developer to build a custom subscription and QR redemption platform as a WordPress plugin. This project will run on a WordPress website hosted with Elementor Hosting. We are not looking for a standalone SaaS platform or separate application server for this phase. The solution should be built as a custom WordPress plugin that behaves like a mobile-friendly web application within the website. The platform will include: - Customer account creation using email and magic-link login - Subscription pass purchase and management - Stripe integration (Apple Pay, Google Pay, and credit cards) - Auto-renewing monthly subscriptions - Customer dashboard - QR code generation and management - Apple Wallet and Google Wallet pass support - QR regeneration with immediate invalidation of previous codes - Administrative dashboard and reporting - Promotional QR campaigns tied to email capture and marketing consent - Customer database shared between subscription and promotional users The platform must integrate with a commercial vending machine system through an existing API. The machine: - Scans a QR code - Sends a validation request to our server - Receives an approve/decline response - Dispenses a product if approved - Sends a callback after dispensing The machine API documentation and integration specifications will be provided. Required reporting includes: - Active subscriptions - Revenue - Redemptions by machine - Redemptions by location - Redemptions by day - Renewal activity - Failed renewals - Subscriber growth Required experience: - Custom WordPress plugin development - PHP - WooCommerce and/or subscription systems - Stripe integrations - REST API integrations - Database design and administration - QR code systems Please respond with: - Examples of similar projects - Relevant WordPress plugin work - Experience with subscriptions and payment systems - Experience integrating with third-party hardware, kiosks, vending systems, POS systems, or IoT devices - Your recommended architecture for this project - Estimated fixed-price budget range - Estimated timeline We are looking for an experienced developer who can help refine the technical approach as well as implement it.