Leonard Roussard
Freelance developer specialized in Web, AI and Design

Freelance developer and entrepreneur with expertise in web development, focusing on premium design and user-centered experiences.
Full-Stack Developer
Working on multiple client projects focusing on web development and AI integration. Refactored WeTurn platform (sustainable fashion recycling platform) using Next.js, TypeScript, and React. Developed AI chatbot for Garuda Buddhist school using Next.js. Building contract management system for Dune Assurance insurance company. Trained multiple developers on Cursor AI coding tool to improve productivity.
Freelance Developer
Specialized in full-stack development, design, AI, and Discord bot development. Created custom solutions using Node.js, Next.js, MongoDB, and various API integrations. Notable projects include LDV Sentinel for esports management and Piepacker support system.
Managed esports teams using NLP and psychology techniques. Responsible for player recruitment, team organization, and conflict resolution. Developed custom management tools and scheduling systems on discord.
Provided comprehensive tutoring in mathematics, French, English, and physics up to high school level. Developed personalized teaching approaches for individual student needs.
Completed a 3-month internship. Created a monitoring dashboard for the IT team using Centreon, and exported data that was locked by third party using Node.js and Postman.
Currently studying data and AI, with a focus on applying these technologies to web development and design.
Master in Data & AI Engineering
Online UX/UI Design Course
Lower Sixth year IB
Web Development, algorithms & data structures
3D CAD Autodesk Course
Significant projects and technical achievements.
Cursor AI Training Program
Designed and delivered comprehensive training program on Cursor AI coding tool for development teams. Covered RAG implementation, LLM functionality optimization, effective prompting techniques, and Cursor primitives for enhanced developer productivity.
Dune Platform
Building a comprehensive contract management system for an insurance company. Developing streamlined contract processing and management features with focus on insurance industry-specific requirements.
Cyto webapp
Developed a comprehensive fintech platform for invoice and document management. Built automated invoicing system with real-time payment tracking, secure document storage, financial analytics dashboard, and integrated multiple payment gateways with accounting software APIs.
Garuda AI Chatbot
Developed an AI-powered chatbot for a Buddhist school to enhance student and visitor interactions. Built using Next.js with intelligent conversation capabilities and integrated AI functionality for educational support.
Valo.eco refactor
Refactored a sustainable fashion recycling platform for clothing waste management. Improved UX/UI using Next.js, TypeScript, and React while enhancing user experience and platform performance.
Currently working on a new esport team management platform for the french scene.
Built a data-driven restaurant recommendation platform for Paris using web scraping techniques. Developed an elegant interface to analyze and display restaurant reviews, ratings and insights. Implemented custom scraping algorithms and data processing to help users find the best dining experiences based on aggregated review data.
Developed a modern portfolio platform with a focus on developer profiles. Features include dynamic content management, real-time Markdown editing, and seamless project showcasing. Built with a premium design aesthetic and optimized performance.
Revenue Management System
Developed a revenue management platform for hotels, focusing on data analytics and PMS integrations. Optimized PostgreSQL for large datasets and implemented complex data visualization features.
Designed and developed a premium landing page for my web development agency. Features smooth animations, responsive design, and modern UI components. Implemented advanced scroll animations and interactive elements to showcase our expertise in creating high-end digital experiences.
Offline-First PWA
Built a robust Progressive Web App with complete offline functionality for sensitive industrial environments. Implemented advanced caching strategies and secure media handling with Vercel Blob storage.
AI Support Chatbot
Created an AI-powered IT support chatbot with data visualization, CSV conversion, and Microsoft Graph integration. Leveraged OpenAI's Assistant API for intelligent file-based queries.
Led development of a dating app featuring personality-based matching, QR code scanning, and Typeform-inspired onboarding. Implemented MongoDB, Redis caching, and deep learning for user compatibility.
Advanced Discord bot for esports association management. Features Notion DB synchronization, AI-powered scheduling, ticketing system, and automated planning using OpenAI functions API.
Comprehensive expertise in web development, from frontend design to backend architecture and AI integration.
Frontend Development
Backend Development
AI & Data
Fluent in multiple languages, enabling effective communication with clients and teams worldwide.