Full Stack Developer for Gym App

We need a full stack developer to build a gym user management application with a modern web interface and reliable backend. The project includes user authentication, membership tracking, and a dashboard for managing gym operations. You will also help integrate Shopify for payments and Calendly for scheduling, and support deployment on AWS. The ideal freelancer can deliver a clean, responsive application, connect external services smoothly, and ensure the system is secure, scalable, and easy to maintain.