Senior Full-Stack Developer – Stripe Billing Integration for GeekPay

We are looking for an experienced full-stack developer with proven Stripe Billing experience to replace our existing SamCart subscription system with a native Stripe integration. Stripe will serve as the system of record for subscriptions, billing, payments, invoices, and customer management. GeekPay will rely on Stripe webhook events to synchronize subscription status and automatically enable or restrict access to our SaaS platform. We offer multiple subscription plans (e.g., different pricing tiers and billing options), and the solution should support creating and managing these plans within Stripe. GeekPay will store the associated subscription information needed to determine a customer’s plan and application access but will rely on Stripe for all subscription lifecycle management. The ideal candidate has experience implementing Stripe Billing, Stripe Checkout, the Stripe Customer Portal, and secure webhook processing in production environments. Experience migrating from another subscription platform to Stripe is a plus. Responsibilities: * Integrate Stripe Billing with GeekPay * Implement Stripe Checkout and Customer Portal * Configure and process Stripe webhooks * Synchronize account status between Stripe and GeekPay * Automatically manage application access based on Stripe subscription events * Assist with migration from SamCart to Stripe Tech Stack * Backend: PHP * Database: MySQL (if applicable) * Stripe Billing * REST APIs * Git Please include examples of previous Stripe Billing projects, your experience with webhook integrations, and your estimated timeline for completion.