Freelancer profile translated to English.
Back to original languageAbout Quentin
Part-Time CTO | Technical PM | Lead Architect & Lead Dev TS/JS
8+ years of experience | Accelerator for Web, Mobile & AI projects
I support you as a strategic technical partner to transform your complex ideas into high-performing digital products. My approach is based on a simple balance: rigorous software architecture serving a fluid user experience.
🛠 Technical Expertise & Architecture
I design robust and scalable systems by leveraging in-depth expertise in the Node.js/TS ecosystem.
- Industrial-grade architecture: I prioritize stability and security, ensuring your code remains maintainable in the long term.
- Audit & Market Reality: I analyze your existing systems to optimize the trade-off between technical rigor and speed-to-market.
🤖 Agentic AI & Efficiency
- Autonomous workflows: I deploy Agentic AI systems where multiple agents collaborate (writing, verification, deployment) to automate your critical processes.
- Budget optimization: AI allows us to act with the power of a full team, reducing your delivery times by 2 or 3 while controlling your costs.
🤝 Leadership & Project Management
Former startup founder and Scrum Master, I bring an "Executive" vision to your projects.
- Crisis & Team Management: I am recognized for my analytical skills and calm demeanor in managing complex situations or technical pivots.
- SARL Structure: Through my company Design Horizon, I offer a guarantee of professionalism and institutional longevity for my clients (e.g., 2 years of continuous support for SFCTCV).
📈 A Hybrid Background
A graduate of École 42 and holding a degree in humanities, I forged my technical rigor with organizations like the Mozilla Foundation. This dual background allows me to speak equally with your developers and your end-users.
French
Native or bilingual
English
Native or bilingual
Can work on-site
Montpellier (up to 50km), Paris (up to 10km)
Experience
- SFCTCV
On Malt
Lead Product Engineer & User Interface DesignHEALTH AND WELLNESSFebruary 2024 - Today (2 years and 6 months)Paris, FranceComprehensive A to Z Support: From product strategy to long-term maintenance (2+ years).
The Challenge: Digitize and centralize the management of complex scientific events for a learned surgical society.- UX Design & Validation: Creation of interactive mockups and functional prototypes to ensure a fluid and intuitive user experience, tailored for a demanding audience of surgeons.
- Development of a Critical Business Application: Full interface development for an event management platform handling complex workflows: multi-criteria registration, accommodation selection, scientific abstract submission, and evaluation modules.
- Maintainable & Documented Architecture: Complete design of a robust technical architecture from day one, planned for constant evolution and long-term stability.
- Evolving Support & Responsiveness: Agile delivery management with strong adaptability based on real user feedback. My responsiveness in estimations and development enabled a smooth transition to a sustainable maintenance phase after over 2 years of continuous collaboration.
- NEXASExpert Tech Lead & Product Engineer AISOFTWARE PUBLISHINGFebruary 2022 - March 2023 (1 year and 1 month)Bordeaux, France
Global Technical Support: From AI design to high-performance architecture.
The Challenge: Transform a traditional billing solution into an intelligent tool capable of automating financial document creation through natural language.- Artificial Intelligence & Productivity: Design and integration of an AI engine to generate a complete invoice from a single sentence, drastically reducing data entry time for the end-user.
- High-Level Software Architecture: Implementation of a Hexagonal Architecture coupled with a DDD (Domain-Driven Design) approach on a TypeScript monorepo. This strategic choice ensures strict separation of business concerns and maximum testability, essential for a critical management application.
- Modern Technological Stack: Fullstack development using Next.js/React for the interface, Prisma and Effect TS for robust handling of backend side effects, all supported by Supabase infrastructure.
- User Experience (UX/UI): Complete redesign of the user journey and interface optimization for uncompromised mobile responsiveness, aligned with the needs of mobile entrepreneurs.
- CrealeadLead Product Engineer & Co-organizer of the Digital HubDIGITAL AND ITOctober 2022 - December 2025 (3 years and 2 months)Montpellier, France
The Challenge: Structure the digital identity of a cooperative of +900 entrepreneurs and animate a community of tech experts.
- Architecture & Design System: Integral design of the Design System and high-fidelity interactive mockups (Framer) for the internal portal. This approach allowed for freezing user journeys through real testing before development, ensuring significant time savings and visual consistency for technical teams.
- Technical Leadership & Animation: Co-leading the cooperative's Digital Hub. I supported member entrepreneurs in improving their skills by organizing workshops and strategic conferences, promoting digital expertise in Occitanie.
- MVP Vision & Consulting: Auditing end-user needs to transform complex ideas into validated functional prototypes, optimizing future development budgets.
- Collective Engagement: Active participation in the life of the CESA (Cooperative d'Activité et d'Emploi), combining agile project management with the development of a network of high-level technical partners.
Reviews
D
Direction
Directrice - SFCTCV
Several days project
-
Reviewed on 4/28/2026
I have been collaborating with Quentin on the front-end development of our web application for two years, and it is with great pleasure that I provide this testimonial about the quality of this experience.
Quentin demonstrates strong technical mastery, combined with constant rigor and unfailing availability. He has grasped our challenges with discernment, delivering a polished, coherent, and user-friendly front-end — all while anticipating our needs and proposing informed solutions.
Beyond his professional qualities, Quentin is an attentive person, pleasant to work with, and whose presence truly enriches team dynamics. A collaboration that is as smooth as it is lasting, which I recommend without reservation.
Valentin
NEXAS
Reviewed on 2/26/2023
Hello,
Quentin adapted very quickly to the architecture and delivered features from the second day. This demonstrates his great development skills.
Furthermore, Quentin is proactive, communicative, and friendly.
What more could you ask for?
Valentin RABOT
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Education
- Computer Engineering422018Computer Engineering
- Bachelor of ScienceInstitut catholique de Paris2015Bachelor's Degree, Social Sciences