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François HuetFH

François Huet

AI Full-Stack Developer — APPS and Automation

€300/day
1 project
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About François

Do your teams spend too much time on tasks that could run themselves?
I design custom web and mobile applications, and integrate AI agents to automate your business processes. Goal: deliver products that provide real ROI, not just a demo that works.

🚀 What I do specifically:
· Web and mobile apps (React, Next.js, iOS, Android)
· Integration of AI agents in your workflows (Claude, Gemini, ChatGPT, RAG)
· Automation of time-consuming processes (n8n, Make, edge functions)
· Takeover and redesign of blocked existing projects
· Sovereign solutions if needed (Mistral, Ollama)

📱 Recent projects:
· DanceLab — Cross-platform SaaS (iOS, Android, Web) with AI chatbot, Stripe + RevenueCat live, real-time sync, Bluetooth LE
· Smiflow — Sports tracker with Strava OAuth, heart rate signal processing
· React/TypeScript missions for Station F startups
· AI Automations: customer support, content generation, business reporting
🛠️ Technical Stack:
Front: React, Next.js, TypeScript, Tailwind
Mobile: Capacitor (iOS + Android), PWA
Back: Supabase, PostgreSQL, Node.js, edge functions
AI: Claude, Gemini, OpenAI, custom agents, RAG
Automation: n8n, Make, Zapier
Cloud: Cloudflare, GitHub Actions CI/CD, App Store, Google Play
Payments: Stripe, RevenueCat

👤 Why choose me:
· Single point of contact from brief to production
· Source code delivered, you retain ownership
· Experience with production apps (live payments, Apple/Google stores, real users)
· Hosting in Europe, GDPR compliant
· Pragmatic approach: the technology that solves your problem, not the one that looks good on a CV

🌐 Portfolio: DanceLab.app
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km)

Experience

  • Laboratoire de Physiologie - Université d'Orléans
    Collaborative Researcher - R&D Development
    PUBLIC SECTOR
    September 2024 - Today (1 year and 9 months)
    Paris, France
    Collaboration with the exercise physiology laboratory to develop scientific dance training methodologies.

    MAIN MISSIONS
    - Development of digital tools for physiological tests (VMA)
    - Translation of scientific concepts into usable interfaces
    - Research protocols: correlation between musical BPM / heart rate zones
    - Validation of training load calculation algorithms

    TECHNICAL APPROACH
    - Application of TRIMP (Training Impulse) principles to dance
    - Adaptation of VMA tests for dance movements
    - Integration of IoT sensor data for precise measurements
    - Statistical analysis and data visualization

    SKILLS DEVELOPED
    - Understanding business needs (scientific research)
    - Translation of academic requirements into software features
    - Methodological rigor and documentation
    - Communication with non-technical experts

    This experience strengthens my ability to create complex business applications requiring specialized algorithms and scientific validation.
    Data Analysis Algorithms Technical Documentation Scientific Communication
  • Studio de Danse Paris/ Client Indépendant
    React Frontend Developer - Freelance Mission
    ARTS AND CRAFTS
    March 2024 - May 2024 (2 months)
    Paris, France
    Mission to develop a modern showcase website and an online booking system for a local dance studio.

    CLIENT CONTEXT
    Dance studio looking to modernize its digital presence and automate class registration management. Need for a responsive, intuitive, and easy-to-maintain solution.

    TECHNICAL ACHIEVEMENTS
    - Complete overhaul of the showcase website in React + TypeScript
    - Class booking system with interactive calendar
    - Administration interface for planning and student management
    - Online payment integration (Stripe)
    - Analytics dashboard (attendance, revenue)
    - Mobile-first responsive design (Tailwind CSS)
    - SEO and performance optimization (load time <2s)

    TECHNICAL STACK
    - Frontend: React 18, TypeScript, Vite
    - UI: Tailwind CSS, Radix UI components
    - Backend: Supabase (auth, database, real-time)
    - Payments: Stripe API
    - Hosting: Vercel with automated CI/CD

    CHALLENGES MET
    - Real-time booking calendar with conflict management
    - Simplified UX for non-technical users (older instructors)
    - Data migration from old Excel system
    - Client training on using the admin interface

    MEASURABLE RESULTS
    - +40% online registrations (vs. phone)
    - Planning management time reduced by 70%
    - Client satisfaction: interface described as "intuitive"
    - 0 critical bugs post-deployment
    Advanced React (custom hooks, context) TypeScript API Integration UI/UX Design Client Project Management
  • Dance Lab
    React Frontend Developer - Project Creator
    SPORTS
    August 2023 - Today (2 years and 10 months)
    Paris, France
    Design and development of a complete sports training tracking web application, from the initial idea to the final product.

    CONTEXT & OBJECTIVES
    Application born from a real experienced need: optimizing dance training with adapted scientific tools. Collaboration with the University of Orléans' physiology laboratory to validate algorithms and methodologies.

    TECHNICAL RESPONSIBILITIES
    - Complete architecture React 18 + TypeScript (50+ components)
    - Development of 23+ reusable custom hooks
    - Integration of Web Bluetooth API for heart rate sensors
    - Complex algorithms (TRIMP, EWMA, heart rate zones calculations)
    - Supabase database with authentication and RLS
    - Android mobile application via Capacitor
    - Multi-device real-time synchronization

    FEATURES DEVELOPED
    - Interactive drag-and-drop calendar (DnD Kit)
    - Audio-guided VMA tests with real-time monitoring
    - Multi-brand Bluetooth connection (Polar, Garmin, Wahoo, etc.)
    - Strava OAuth integration for activity import
    - Analytics dashboard with visualizations (Recharts)
    - PDF export and community sharing
    - PWA with Service Workers

    PERFORMANCE & QUALITY
    - Optimized bundles: 43KB (86% reduction)
    - 0 TypeScript errors in strict mode
    - Unit tests Vitest + React Testing Library
    - Build time: 6-7 seconds
    - Quality score: 95%

    SCIENTIFIC COLLABORATION
    Partnership with the University of Orléans for:
    - Scientific validation of physiological algorithms
    - VMA test protocols adapted for dance
    - Studies on training zones based on musical BPM

    TECHNICAL STACK
    React 18, TypeScript, Vite, Tailwind CSS, TanStack Query, Supabase, PostgreSQL, Capacitor, DnD Kit, Recharts, Web Bluetooth API, Service Workers

    Relevant skills: React.js, TypeScript, Tailwind CSS, PostgreSQL, Supabase, Web APIs, Capacitor, Vitest
    React.js TypeScript Tailwind CSS PostgreSQL Supabase

Reviews

5.0

Out of 1 rating

F

Fab

Responsable des opérations - Luckystay

Reviewed on 4/7/2026

François was very responsive and communication was smooth. This allowed us to quickly identify the problem affecting our organization and resolve it very quickly. Thank you for your efficiency.

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Education

  • BTS Electrotechnics
    Delepine
    2012

Skill set

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