Full Stack Developer – Custom Subscription Portal (Shopify / Webhook Integration)

Overview: We are looking for an experienced Full Stack Developer to build a streamlined, custom subscription portal for our e-commerce brand. The portal will allow customers to manage their ongoing subscriptions (view next bill date, pause, skip, swap products, update payment methods, and cancel) seamlessly with a fast, modern UI. Key Responsibilities: Build a clean, responsive front-end user portal (React / Vue / custom Tailwind or CSS). Integrate back-end architecture with our subscription & payment platform via REST/GraphQL APIs and webhooks. Implement key customer self-serve management features: View active/paused subscriptions and billing schedules. Skip next delivery, pause/resume, or cancel subscription. Update shipping addresses and payment methods. Swap items or adjust quantities. Secure user authentication and state management. Ensure mobile-first responsiveness and rapid load speeds. Requirements: Front-End: React, Vue.js, or modern JavaScript frameworks + CSS/Tailwind. Back-End: Node.js, Python, or PHP for webhook handling and API integrations. E-Commerce Experience: Proven track record working with e-commerce APIs (Shopify Admin/Storefront API, payment gateway webhooks, or direct subscription engines like Checkout Champ / Recharge). Clean, well-documented code with security best practices for handling customer data. Preferred Qualifications: Experience designing seamless, low-friction checkout or account portals. Experience setting up serverless functions (AWS Lambda, Vercel, or Cloudflare Workers) for high-reliability webhook listeners. To Apply: Please send a brief overview of relevant portals, webhooks, or e-commerce integrations you’ve built, along with links to live projects or GitHub repositories.