Subscription & Membership App Development

We are looking for an experienced Backend Developer to build the server-side infrastructure for a subscription and membership-based mobile application that will support both iOS and Android clients. Scope of Work: - Design and develop a secure, scalable backend architecture. - Build RESTful APIs for mobile applications. - Implement user authentication and authorization. - Develop subscription and membership management logic. - Integrate payment providers (Apple In-App Purchases, Google Play Billing, and/or Stripe). - Manage user profiles, membership tiers, and subscription status. - Implement push notification support (backend integration). - Build admin APIs for user and subscription management. - Optimize database performance and ensure data security. - Write clean, well-documented, and maintainable code. Preferred Tech Stack (Open to Suggestions): - Node.js (NestJS/Express) - PostgreSQL or MongoDB - Redis for caching - AWS, Google Cloud, or DigitalOcean - Firebase services (optional) Required Experience: - Proven experience building scalable backend systems. - Strong API development experience. - Experience with subscription billing and payment integrations. - Knowledge of authentication (JWT, OAuth, etc.). - Database design and optimization. - Experience with cloud deployment and CI/CD. - Good communication skills and ability to work independently. To Apply, Please Include: - A brief introduction and your backend experience. - Relevant projects involving subscriptions, memberships, or payment systems. - Your preferred backend stack and why. - Your estimated timeline for a production-ready MVP. - Your hourly rate or fixed-price estimate. We are looking for a reliable developer who can build a robust, secure, and scalable backend that will serve as the foundation of our mobile application. Long-term collaboration is possible for future enhancements and maintenance.