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Yohan Le QuéréYL

Yohan Le Quéré

Lead Fullstack Developer (React / Vue / Node)

€650/day
1 project
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Yohan

Fullstack Developer for 8 years, I will assist you from project architecture design to production, whether for your backend or frontend.

Working with agile methodologies, I am flexible for the development of your features to give you complete freedom during the mission.

What I offer:
- The development of your backend and your database architecture
- A clean and maintainable architecture with documentation
- The development of related applications (web & mobile)
- The deployment of your backend on test and production environments
- Development and connection to external micro-services (Push Notifications, Stripe, OAuth2, AWS, etc.)

Additionally:
- Integration of LLMs into your project with OpenAI, Mistral, Claude, etc.
- Setup of Langchain

My backend technologies:
- Node.js
- Nest.js
- Express
- Mongo / Mongoose
- PostgreSQL / TypeORM
- AWS Micro-services
- C++

My frontend technologies:
- ReactJS / Next.js
- React Native / Expo
- VueJS / Nuxt.js

My tools:
- IDE -> WebStorm, Clion
- UI/UX -> Figma, Adobe XD
- Database -> MongoDB, DBEaver
  • English

    Fluent

  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Naboo
    AI Builder
    TRAVEL AND TOURISM
    March 2025 - Today (1 year and 3 months)
    Paris, France
    Cross-functional intervention across all Naboo apps. Design and build of Naia, the product that transforms the event marketplace into a conversational AI agent. Development of the AI voice agent for service provider follow-up (ElevenLabs/Twilio, advanced prompt engineering, Partner Space integration). Naming and product positioning of the AI component. Stack: Conversational AI, LLM API, agents, Next.js.
    LLMs LangGraph NestJs Next.js Typescript
  • Carrefour
    Carrefour Links - Growth
    DIGITAL AND IT
    August 2023 - February 2025 (1 year and 6 months)
    Massy, France
    Responsible for the development of a data visualization platform for Carrefour. My role is to provide my expertise in software development for the R&D of an internal data visualization tool for Carrefour and its global suppliers.
    Vue.js Node.js Typescript Looker Google Cloud
  • AZOT
    Co-CEO & Developer
    SOFTWARE PUBLISHING
    February 2021 - Today (5 years and 3 months)
    Paris, France
    We founded a web & mobile development agency with Xavier Le Cunff, consisting of a service provision part to meet your needs and a startup studio to boost innovation.
    Mobile Application User Experience Design User Interface Design Web Development Innovation

Reviews

5.0

Out of 1 rating

A

Alexandre

SupremApp

Reviewed on 11/23/2021

Yohan is very fast and very efficient. He takes the project in its entirety, being available and attentive. A real pleasure to work alongside him on projects.

Recommendations

Nicolas DiotND
Antoine F.AF
Maxence B.MB
+1
Nicolas Diot and 3 other people have recommended Yohan

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Education

  • Expert in Information Technology (Master)
    EPITECH
    2021
    Epitech est une formation visant à former des passionnés de l’informatique dans le but de favoriser l’autonomie et l’apprentissage rapide face à des languages et problèmes inconnues.
  • Master in Security (M1)
    Stockholm University
    2020
    Suivi du cursus master en sécurité à l'université de Stockholm en tant qu'étudiant en échange. Thème abordé: - Sécurité des réseaux - Sécurité des logiciels - Cyber Sécurité - Cyber Forensics - Management d'un équipe en vu d'un audit de sécurité

Skill set

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