Case Study - Building Scalable Multisite Platforms for the Healthcare Industry

Overview

Sanofi, a global leader in the pharmaceutical industry, required scalable, high-performance web platforms to support its multisite architecture. As part of Sanofi’s Accelerator program, I focused on delivering robust front-end solutions using React and Next.js, while ensuring seamless back-end integrations with Node.js.

One of the key projects was Beyfortus, a vaccine website aimed at preventing bronchiolitis in infants, targeting the US market. My challenge was to maintain a high-quality, scalable web architecture while ensuring performance, maintainability, and rapid development in a multinational environment.

Key Contributions

1️⃣ Developing a Scalable Multisite Platform

I built and maintained multiple websites under a unified platform, ensuring:

• Code reusability across different Sanofi projects.
• Scalable architecture using Next.js and Nx monorepo.
• Fast, accessible web pages optimized for healthcare services.

2️⃣ Building the Beyfortus Website for US Markets

I contributed to Beyfortus, a vaccine information website designed to educate and inform healthcare professionals and parents about bronchiolitis prevention. Key improvements included:

• Enhanced performance optimization for SEO and accessibility.
• Interactive, user-friendly UI components built with Storybook.
• Seamless deployment and updates using GitHub Actions and CI/CD pipelines.

3️⃣ Component-Driven Development with Storybook & Chromatic

To ensure consistent UI design and development, I implemented:

• Storybook for isolated component testing and development.
• Chromatic for visual regression testing, maintaining design consistency across Sanofi’s digital platforms.

4️⃣ End-to-End Testing with Cypress

Quality assurance was a top priority, achieved through:

• Comprehensive E2E testing using Cypress.
• Automated workflows to catch UI and functional regressions early.
• CI/CD integration with GitHub Actions for a smooth development pipeline.

5️⃣ Agile Collaboration in a Multinational Environment

• Worked in a fast-paced Agile setup, managing tasks in JIRA.
• Fluency in English was essential for collaborating with multinational teams.
• Ensured seamless front-end & back-end integration, improving platform stability.

Conclusion: Scalable Web Solutions for Healthcare

By implementing modern front-end technologies, scalable architecture, and a robust testing framework, I successfully enhanced Sanofi’s digital platform, ensuring it met the highest standards of performance, security, and maintainability.

My work on the Beyfortus website helped deliver a critical health information platform, improving user experience and accessibility for a global audience.

What I Did