// Appointment is a SaaS-based scheduling and booking platform built for clinics, doctors, and businesses to manage appointments seamlessly.
Overview:
Appointment is a SaaS-based scheduling and booking platform built for clinics, doctors, and businesses to manage appointments seamlessly. The system is designed with multi-tenant architecture to ensure isolated data per organization, and multi-language support (i18n) for international accessibility. Core features include booking, cancellation, provider availability management, and real-time notifications.
My Role:
Designed and developed the backend architecture with Node.js and TypeScript.
Implemented multi-tenant architecture ensuring secure data separation for each clinic/business.
Built backend modules: users, providers, businesses, departments, sub-departments, and bookings.
Implemented the complete appointment lifecycle: create, cancel (by user or provider), disable slots (by provider).
Designed the frontend architecture using Micro-Frontend principles with React and Next.js, enabling independent development and deployment of different modules (User, Provider, Admin).
Implemented i18n support across backend and frontend for multi-language booking experiences.
Designed GraphQL APIs and React Query hooks for efficient client-server interaction.
Integrated a notification system (email, SMS, in-app) for confirmations and reminders.
Technologies:
Node.js, TypeScript, Express, MongoDB, GraphQL, React, Next.js, Micro-Frontend, Redux Toolkit, React Query, Tailwind CSS, Shadcn/UI, Docker, Kubernetes, i18n
Challenges & Achievements:
Built a scalable booking engine capable of handling thousands of concurrent appointments.
Designed provider availability management with flexible rules for working hours, holidays, and slot disabling.
Implemented a multi-tenant structure where each business/clinic has isolated users, providers, and bookings.
Added multi-language support across the system (UI, notifications, emails).
Designed Micro-Frontend architecture for modular, scalable, and independently deployable frontends.
Integrated notifications for real-time updates to users and providers.