Rendez-vous Facile

Build a reliable, secure SaaS platform for online appointment management, targeting Moroccan professionals - doctors, lawyers, physiotherapists, notaries - facing high no-show rates and time-consuming manual scheduling.

The technical challenge: design a multi-tenant system capable of serving hundreds of independent practices, each with its own hours, practitioners and rules, while remaining embeddable on existing websites in minutes via a simple widget. The business challenge: convince traditional professions to switch to a digital tool while respecting strict patient data confidentiality (GDPR, professional secrecy).

I architected a scalable Node.js backend (Express, MongoDB) with a documented REST API and a robust JWT authentication system. On the frontend, a reactive React interface offers an interactive drag-and-drop calendar, management of recurring availability slots and exceptional unavailabilities.

The business model relies on three subscription tiers (Solo, Practice, Multi-site) with progressive quotas on practitioner count, monthly bookings and advanced features (automated reminders, statistics, accounting exports). I integrated a Moroccan SMS API for D-1 and H-2 reminders, paired with transactional emails.

A one-line embeddable JavaScript widget for any website, Stripe billing for subscriptions, an analytics dashboard tracking occupancy rates. Cloud hosting with daily backups and encryption of sensitive data.

Appointment booking SaaS delivered in production: Node.js and Express backend on MongoDB, documented REST API, JWT authentication, and a React interface with a drag-and-drop interactive calendar.

Installation time was the decisive factor for adoption. The booking widget embeds in a single line of JavaScript on an existing site, letting a practice offer online booking without rebuilding its website. That constraint was effectively mandatory to win over lightly digitised professions - doctors, lawyers, physiotherapists, notaries - who would not have commissioned a web project for this alone.

The multi-tenant architecture isolates each practice with its own opening hours, practitioners, recurring availability and exceptional closures. Automated reminders go out by SMS through a Moroccan API one day and two hours ahead, backed by transactional emails: this is the mechanism that directly addresses the no-show problem behind the project.

The three-tier subscription model (Solo, Practice, Multi-site) is operational, with progressive quotas on practitioners and monthly appointments, advanced follow-up and accounting export features, and Stripe payment.

Patient data confidentiality and professional secrecy were treated as design constraints: cloud hosting with daily encrypted backups and strict access management.