Hassen Ben Hadj Hassen

Developed a diabetes management app using React, Node.js, MongoDB, and Prisma. Built features for blood sugar tracking, AI-powered meal logging, reducing manual entry time. Integrated a GPT-based chatbot for safe, empathetic patient guidance. Designed dashboards and PDF exports for doctor use.

Collaborated on the frontend of the flagship educational platform (Alemi), focusing on responsive design and clean UI components. Built reusable React components and dynamic pages; worked closely with designers to ensure pixel-perfect implementations and improved UI accessibility.

Built and maintained full-stack SaaS applications using React, Node.js, MongoDB, and Prisma, supporting 500+ daily active users. Developed data-driven dashboards and optimized frontend rendering for large datasets. Implemented secure authentication and role-based access control, dockerized apps, and deployed self-hosted iRed Mail as part of infra. Delivered AI-assisted features (automatic logging and data analysis), improved mobile responsiveness and frontend performance by 40%, and secured 10+ client portals using Nginx + Certbot with 100% SSL compliance. Managed Linux servers, CI/CD pipelines, and monitoring systems. End-to-end deployment with Docker on AWS, reducing manual deployment effort by 30%.