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Franck Dufournet

Franck Dufournet

Frontend development.

Modern and dynamic interfaces

Skills

    • Frontend

    • Next.js
    • React.js
    • Typescript
    • Redux.js
    • Zustand
    • React Query
    • Tailwind
    • Sass
    • CosmosKit

    • Backend

    • Node.js
    • express.js
    • Elysia
    • socket.io
    • WebSocket
    • SSE
    • prisma
    • TypedSQL
    • auth.js
    • API REST
    • MongoDB
    • PostgreSQL
    • Supabase

    • Design

    • Figma

    • AI & Data

    • Google Gemini
    • OpenAI
    • Zod

    • Other

    • GitHub
    • Jest
    • Npm
    • CI/CD

Projects

  • Coreum DEX Platform

    Full-Stack DeFi Trading Platform on Cosmos

    Backend Lead
    Frontend Developer
    Coreum DEX Platform

    Full-stack development of a decentralized exchange (DEX) platform on Coreum blockchain. Led the complete backend modernization by migrating from raw SQL queries to Prisma ORM, achieving 3-4x performance improvements thro…

    • prisma
    • PostgreSQL
    • Elysia
    • SSE
    • WebSocket
    • React Query
    • Zustand
    • Next.js
    • Typescript

  • GreenPulse - AI Form System

    Intelligent ESG Data Collection Platform

    CTO
    Fullstack
    GreenPulse - AI Form System

    Full-stack development of an innovative form management and AI extraction platform for sustainability reporting and field inspections. Architected complete backend with 72 API endpoints, 6 MongoDB models, and comprehensi…

    • Next.js
    • express.js
    • MongoDB
    • Google Gemini
    • React Query
    • Zod
    • Typescript
    • Tailwind
    • next-intl

  • ClausIA - AI Chat Platform

    Enterprise RAG-powered Chat Application

    Frontend Developer
    ClausIA - AI Chat Platform

    Frontend development of an enterprise-grade AI chat platform featuring RAG-powered responses with source citations. Developed real-time streaming interface using Server-Sent Events (SSE) with character-by-character displ…

    • Next.js
    • Typescript
    • Tailwind
    • Zustand
    • SSE
    • Zod
    • next-intl
    • React

    Private project

  • EventoApp.io

    Event creation and ticket sales

    CTO
    Fullstack
    EventoApp.io

    A complete online event creation platform. I co-built and developed EventoApp.io as CTO, managing the entire stack: frontend PWA with Next.js/React, backend Express/MongoDB, state management via Zustand, real-time commun…

    • Next.js
    • React.js
    • Typescript
    • Zustand
    • express.js
    • MongoDB
    • REST API
    • CI/CD
    • socket.io

  • Hydro Marketplace

    Web3 NFT on Cosmos

    Frontend
    Hydro Marketplace

    A decentralized marketplace to sell and buy NFT assets linked to the Cosmos blockchain. I contributed as a Frontend Developer using Next.js, React.js, TypeScript, CosmosKit, and Supabase.

    • Next.js
    • React.js
    • Typescript
    • CosmosKit
    • Supabase

  • Tree Transplantation

    Online catalog

    CTO
    Fullstack
    Tree Transplantation

    Development of a multilingual showcase website (FR/EN) presenting tree transplantation equipment. Added and optimized product sections (catalog with filters, product sheets), improved SEO (title tags, meta descriptions, …

    • Next.js
    • React.js
    • Typescript
    • REST API
    • SEO

  • Zephyrus - Gamified DeFi Platform

    Web3 Liquid Staking & NFT Aggregator on Cosmos

    Frontend Developer
    Zephyrus - Gamified DeFi Platform

    Frontend development of a gamified decentralized finance platform on Cosmos blockchain featuring liquid staking (LSM), NFT vessel management, and governance participation. Built complete vessel lifecycle system including…

    • Next.js
    • Typescript
    • CosmosKit
    • Zustand
    • CosmWasm
    • IBC
    • Tailwind
    • React

  • Lima Prod

    Video production, France, Vietnam, Asia

    Frontend
    SEO
    Lima Prod

    Partial redesign of the Wix site for Lima Prod. I added and structured new sections to improve content readability, optimized SEO by updating metadata (title, description, OG images), and improved the heading hierarchy. …

    • Wix
    • SEO
    • OG Metadata