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Quentin C.QC

Quentin C.

CTO - AI / Senior Fullstack JS / React / Node

€950/day
5 projects
Paris, FR
8-15 years

Average response time: 1 hour

About Quentin

👋 Hi! I’m a CTO and a senior developer with 10 years of experience, passionate about building in product-driven teams.

🚀 I’ve led multiple successful projects from idea to large-scale production - as a freelancer, employee, and entrepreneur. Check out my profile!

☕️ Based in Paris - always happy to meet up for a coffee.

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My core focus is web applications and AI (including infrastructure). Over 10 years, I’ve touched many fields - but my true expertise is building web products.

The kind of missions I enjoy working on:
• Full-stack JavaScript (React + Node/Express) - 10 years building SaaS.
• AI Agents: RAG, MCP, recursive/nested architectures - I build advanced agents that self-correct and access data across apps.

⚛️ Senior Fullstack developer
👷 AI - Agentic workflows, n8n, claude code, power automate, fine-tuning, etc. - RAG
🌱 More than 4M€ raised in seed money as a founder

Other stuff:
🧢🎩 42 + emlyon = Management/Product Manager skills
👨🏼‍🏫 Experience as a trainer ReactJS - NodeJS for SNCF teams / AI for SMBs
🎨 3D rendering with WebGL (using ThreeJS)


⚠️ my work is billed by the day, not per deliverable.
  • English

    Native or bilingual

  • French

    Native or bilingual

Can work on-site
Paris (up to 50km), Paris (up to 100km)

Experience

  • Dolead
    AI Agent builder
    DIGITAL AND IT
    September 2025 - Today (9 months)
    Paris, France
    Built an AI agent that autonomously tests ~2k Dolead landing pages daily (surveys, cookies, ToS, etc.) and reports errors. Paired it with a performance-checking algorithm (incl. Lighthouse metrics), cutting the time to detect and fix critical production issues.
  • Zest
    CTO
    TELECOMMUNICATIONS
    November 2024 - June 2025 (7 months)
    Built Zest, an AI inbox that automates sorting, drafting, and decluttering. Engineered
    full email stack (IMAP/SMTP , microservices with RabbitMQ, React frontend),
    integrated Gmail/Outlook OAuth, and passed Google CASA II security audit.
    Designed AI agent and document summarizer enabling contextual file suggestions
    and RAG-based reasoning.
    intelligence artificielle Développement Front-End Développement Back-End Agent IA RabbitMQ
  • notice.studio
    Founder
    SOFTWARE PUBLISHING
    February 2021 - December 2024 (3 years and 10 months)
    Built a web app for creating reusable content blocks (blogs, FAQs, docs) embeddable across web and mobile. Scaled from solo project to a 6-person team, raised €2M+ in equity, and reached millions of monthly users. Designed a renderer API powering multilingual, headless CMS features and a smart AI agent that auto-generates content by crawling websites. Stack: React, Fastify, Node.js, Webflow, Stripe, GA4, OpenAI, AWS, GCP .
    Développement Front-End Développement Back-End intelligence artificielle

Reviews

5,0

Out of 2 ratings

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Account deleted

Reviewed on 21/01/2021

Quentin a rejoint une Scrum Team pour ajouter de nouvelles fonctionnalités à la web app. Il s'est très rapidement onboardé malgré la complexité de l'application et a joué un rôle moteur pour refondre le code selon les meilleures pratiques. L'équipe a apprécié le travail de Quentin tant d'un point de vue technique que relationnel, merci à toi !
C

Charlotte

Fieldbox.ai

Reviewed on 14/12/2020

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Education

  • Développeur
    42
    2017
    Low-level : C for algorithms (sorting, solver with time/space constraints, backtracking, etc.) Web : vanilla php /js + jQuery / js + react + nodejs SQL ML : python for ML
  • Msc in Management (PGE)
    emlyon
    2015

Skill set

Categories