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Quentin FrançoisQF

Quentin François

Lead Frontend Developer · React.js / Next.js

€500/day
6 projects
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Quentin

Are you launching or evolving a SaaS product and need someone who doesn't just execute tickets?

I support founders and early-to-mid stage teams in designing, structuring, and delivering their product, from technical architecture to user interface.
I step in when the stakes go beyond simple execution: architectural choices, product prioritization, long-term quality, and delivery speed.

Specifically, I have already taken products from 0 to 1 with teams of 1 to 4 people, supported founders on scalability and architecture issues, and led migrations from legacy code to modern stacks to establish truly sustainable foundations.

My Approach

My role is to take a high-level view of the product and stack to avoid costly mistakes in the early stages.
I combine advanced frontend expertise (React / Next.js / TypeScript) with a global product vision to build maintainable, scalable technical foundations aligned with business objectives.

Example Missions

· Structuring or taking over the product roadmap
· Frontend architecture choices and technical trade-offs
· Establishing solid foundations (design system, standards, DX)
· Accelerating delivery during critical phases
· Auditing and supporting complex or growing projects

I often act as a part-time CTO or product lead when full-time recruitment is not yet relevant.

Outside of Code

I also support founders and teams in skill development, technical decision-making, and product / time-to-market / technical debt trade-offs.

Interested?
Let's discuss your context and see if I'm the right person to support you.

Quentin François · quent1.com

Fractional CTO · Lead frontend developer · Frontend Engineer (React / Next.js / TypeScript)
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 30km)

Experience

  • Bridge for good
    Lead Frontend Developer - Engineer
    ENTERTAINMENT AND LEISURE
    July 2025 - Today (11 months)
    Paris, France
    1. Migration of a legacy application

    The migration involved rewriting a vanilla editor (PHP, HTML, CSS, JS, Webpack) into a React SPA.
    By using good development practices, we were able to improve the editor's UX and implement dynamic rules.

    2. Creation of the company's showcase website
    Statically generated Nextjs site

    3. Creation of an application to organize bridge lessons
    React / Hono / Typescript / Monorepo / TailwindCSS / Nextjs / Tanstack / Shadcn

    4. Creation of a solid technical foundation
    Typescript TailwindCSS Frontend Development Next.js Developer React.js Developer
  • Lune Studio
    Lead Frontend Developer - Engineer
    SOFTWARE PUBLISHING
    November 2024 - Today (1 year and 6 months)
    Paris, France
    This mission involves **supporting a founder in creating a SAAS software**.

    My role is to act as acoachorguideon these various topics:

    - Guiding in the implementation of good Software Architecture
    - Familiarizing with SOLID principles, best practices, and conventions
    - Guiding technical choices
    - Transmitting the developer mindset
    - Documenting the thoughts and questions behind each decision
    - Sharing my knowledge of technologies and web development in general
    - Migrating a functional React.js prototype to a robust Next.js application

    Mentoring / Software Engineering Coaching
    Typescript GitHub Clean Code Next.js Developer React.js Developer
  • mad.studio
    Lead Frontend Developer - Engineer
    SOFTWARE PUBLISHING
    April 2025 - December 2025 (8 months)
    Paris, France
    Creation of a full-stack application in the Web3 ecosystem.
    The project is an application for managing NFT skins and is part of a larger ecosystem.
    It was built in 2 parts with a Next.js frontend deployed on Vercel and a Dockerized Hono API deployed on Railway.

    React.js / Next.js / TypeScript / Hono / Monorepo / Upstash / Vercel / Railway / PostgresSQL / Docker / Google Bucket
    FullStack Development Next.js Developer React.js Developer Frontend Development

Reviews

5.0

Out of 5 ratings

M

Mickael

Silogis

Reviewed on 3/25/2025

Work perfectly done by Quentin, the feedback was clear and concise, exactly what we expected from this mission.
L

Laurie

Ma Petite Chaise

Reviewed on 1/27/2025

Quentin is very responsive and efficient, we recommend him!

Recommendations

Alain CheaAC
Enzo LouroEL
Alain Chea and 1 other person have recommended Quentin

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Education

  • Computer Engineering
    Efrei Paris
    # Diplôme d'ingénieur en informatique 💎 *Formation.* Parcours logiciels et système d'information 🎀 *Majeur.* Software Engineering
  • DUT, Computer Science
    IUT Paris Descartes
    2021
    # Diplôme Universitaire Technologique 💫 *Spé.* Application réflexive

Skill set

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