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Antoine ChalifourAC

Antoine Chalifour

Supermalter

Fullstack Developer | React Expert | Node

€650/day
6 projects
Paris, FR
8-15 years
TypeScript
React.js
Node.js
Next.js
NestJs

Average response time: 1 hour

Freelancer profile translated to English.
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About Antoine

Senior Fullstack Developer | React & Node.js | Pragmatic Builder


Fullstack Developerfor nearly 10 years, I help startups and public organizations create ambitious web products.
My approach: deliver **quickly**, **cleanly**, and **efficiently**, from front-end CSS and accessibility to optimizing SQL queries on the back-end.

Skills


**Frontend**: React (expert), Next.js, Remix, TypeScript, accessibility, design system

**Backend**: Node.js, NestJS, PostgreSQL, Redis

**Architecture & Quality**: TDD, automated tests, CI/CD, Domain-Driven Design, pragmatic software craftsmanship

**Role**: founding engineer, product engineer, lead on early-stage or growth products

Recent Experiences


**Public Sector: Les entreprises s’engagent / DITP**: development and deployment of public platforms



**Semana (early-stage startup)**: founding engineer, rapid development of core product features and implementation of best practices



**Dotfile (early-stage startup)**: product engineer, feature design and development, architecture and technical standards

What I Bring


**- Complete fullstack development**, from prototype to scalable product

-Fastandreliabledelivery, withmaintainableand tested code
- Product and technical expertise to accelerate time-to-market
- Ability to navigate betweenglobal visionanddetailed execution
Public Sector
Social Networks

  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km), Avignon (up to 50km), Marseille (up to 50km), Lyon (up to 50km)

Experience

  • Les entreprises s'engagent
    Senior Fullstack Developer
    PUBLIC SECTOR
    March 2025 - Today (1 year and 5 months)
    Paris, France
    The "Les entreprises s’engagent" platform is a national platform, encouraged by the French government, which brings together companies around concrete social, societal, and environmental issues.

    Technical Stack: React, Next, Tailwind, SQL (Postgres), Redis

    Role: Tech Lead
    Achievements:
    - Development of 4 platforms for companies, departmental clubs, and vocational high schools
    - Synchronization with Salesforce and marketing platform
    - Software architecture
    - Design system
    - Testing strategy
    - Background jobs
    - Accessibility
    React.js Next.js Redis PostgreSQL Node.js
  • Dotfile
    Senior Fullstack Developer
    BANKING AND INSURANCE
    September 2024 - January 2025 (4 months)
    Paris, France
    Dotfile is a B2B SaaS KYB (Know Your Business) solution using artificial intelligence to manage KYB / AML procedures.

    Technical Stack: React, Nest, SQL (Postgres), AWS, GraphQL, AI
    Role: Product Engineer: feature scoping, PRD, development
    Achievements:
    - Management of soft deletes, GDPR compliance, webhooks
    - AML workflows with AI (OpenAI)
    React.js GraphQL NestJs PostgreSQL Node.js
  • Semana
    Senior Fullstack Developer
    HUMAN RESOURCES
    January 2022 - December 2023 (2 years)
    Paris, France
    Semana is a B2B workplace management SaaS addressing issues around flex-office: remote work management, calendars, desk booking, etc.

    Technical Stack: React, Node, GCP, Redis, Postgres

    Role:
    - Product Engineer: scoping, PR, feature development
    - Booking and desk allocation algorithm in a competitive context
    - Design system
    - Background jobs, queues
    - Accessibility
    - Automated tests
    - Synchronizations with Google Calendar, Microsoft Teams
    - SCIM for Okta
    Node.js PostgreSQL React.js Google Cloud NestJs
Check out Antoine's experience

Reviews

5.0

Out of 1 rating

F

Florian

Responsable des opération Tech, Data, IA - Les Entreprises s'engagent

Several months project

-

Reviewed on 11/24/2025

Antoine joined the "Les entreprises s’engagent" project as a full-stack developer and integrated into the team very quickly. He immediately grasped the business challenges, asked the right questions, and proposed solid solutions. Technically, Antoine is serious, reliable, and precise. He knows how to explain, make decisions, and move things forward without losing sight of the big picture. This rigor naturally led him to the role of Tech Lead, which he now holds with flying colors. We are continuing a new mission together, with ambitious challenges for the coming year. If you are looking for someone professional, autonomous, and capable of carrying a project with high standards and serenity, you can entrust your missions to him with your eyes closed.

Recommendations

FA
Léo JacqueminLJ
Jordan TailleferJT
Florian Autret and 2 other people have recommended Antoine

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Education

  • DUT Computer Science
    IUT du Limousin
    2013
  • Engineering Degree
    Polytech Nantes
    2016
    Diplôme d'ingénieur. Spécialisation Business Intelligence : Stats, machine learning, data mining, ...

Skill set

GraphQL
React Native
CSS3
JavaScript
Accessibility
TDD
Software Craftsmanship
Tech Lead
Continuous Integration
Remix
HTML5
TDD/BDD
Domain Driven Design
DDD
PostgreSQL
Redis
Google Cloud
Backend Service Development
External API integration
Front End Interface Development
Software Architecture
React
Redux
SVG
API
Websocket
TailwindCSS
Amazon Web Services

Categories