You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Grégory DesmaziersGD

Grégory Desmaziers

Senior Fullstack JS/TS | Node/Nest/React/Next/AI

€700/day
2 projects
Paris 20e Arrondissement, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Grégory

Senior Fullstack JS Developerwith15 years of experience**, I have designed and developed numerous **SaaSandweb applicationswith JS technologies:NodeJS**, **NestJS**, **React**, and **NextJS**, integrating **AI functionalities(LLM) in recent years.

During my first 10 years of experience in agencies and consulting firms, I had the opportunity to work in various sectors such as media, transport, and banking.
I had the chance to participate in numerous projects (Web, mobile) with a variety of technologies (Node.js, Angular, React, Java, iOS, Android, PHP), which allowed me to develop solid technical expertise.

I then co-founded two startups. The first, in foodtech, was a culinary recommendation engine, the second was a B2B marketplace (€3M raised).

Today, I support my clients as a Senior Fullstack JS Developer, helping them implement their technical architectures and develop their solutions using JS technologies (Node.js, NestJS, and React).

I have participated in several AI projects, the most recent involving the development of an AI Agent (Open AI, Rag, Langchain).
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris 20e Arrondissement (up to 50km), Marseille (up to 50km), Lyon (up to 50km), Bordeaux (up to 50km), Lille (up to 50km)

Experience

  • Freelance
    Senior freelance JS developer
    July 2024 - Today (2 years and 1 month)
    I support my clients as a Senior Fullstack JS Developer, helping them implement their technical architectures, develop their solutions on JS technologies (Node.js, NestJS, NextJS, and React), and integrate AI functionalities (Open AI, Rag, Langchain).
    NestJs Next.js React.js Node.js Generative AI
  • Kiosk (YC W24)
    Senior Fullstack Typescript Developer
    SOFTWARE PUBLISHING
    June 2023 - June 2024 (1 year)
    Paris, France
    Development of a marketing platform around Whatsapp.
    Backend architecture and development (NestJS)
    Implementation of a RAG pipeline
    Frontend development (React)
    Nest JS React.js Redis OpenAI RAG Langchain
  • Circl
    NestJs Back-end Developer
    E-COMMERCE
    April 2023 - December 2023 (9 months)
    Development of the NodeJS API with NestJS.
    Development of Stripe / Stripe Connect integration
    Development of Woo Commerce integration
    Implementation of the CI/CD pipeline.
    Implementation of automated tests.
    NestJs Node.js Typescript

Reviews

5.0

Out of 2 ratings

ElianE

Elian

Moovsur

Reviewed on 1/24/2023

Excellent service from Grégory for this second mission. I recommend him for his Node.js and AWS skills.
ElianE

Elian

Moovsur

Reviewed on 12/3/2021

I really enjoyed Gregory's work and his ability to adapt to the mission's needs. I would be happy to work with him again in the future and I recommend him.

Recommendations

MP
AB
TS
+1
Marie Petit and 3 other people have recommended Grégory

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Engineer
    ESCPI
    2008
  • DUT
    University of Cergy-Pontoise
    2005

Skill set

Categories