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Winny DrancourtWD

Winny Drancourt

Web Developer | Ruby on Rails - JS React

€400/day
Lille, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Winny

Senior Full-Stack Developer — Ruby on Rails, Node.js, React
Design and evolution of robust web products for SMEs & Startups
Tools are not lacking.
What's missing are reliable, maintainable applications truly aligned with the business.
I intervene at a key moment: when a web product already exists, but the architecture, performance, or maintainability start to hinder growth.
I design and develop custom web applications built to last:
– internal business applications
– back-offices and decision-making dashboards
– SaaS platforms and digital products
– takeovers, overhauls, and evolutions of existing projects
My role is not limited to coding.
I secure structuring technical choices to avoid technical debt, costly overhauls, and medium-term blockages.
Methodology
– in-depth functional and technical analysis
– clear recommendations focused on product and long-term
– modular, scalable, and documented architecture
– quality-oriented development (tests, readability, maintainability)
– controlled deployment and environments (Docker, CI/CD)
– fluid collaboration with product, design, and business teams
Main Stack
Ruby on Rails · Node.js · React · TypeScript · PostgreSQL · Docker
REST API / GraphQL · CI/CD · Performance & accessibility
I primarily support growing SMEs and startups that need a solid technical foundation, an autonomous developer, and a long-term vision.
No quick fixes.
No excessive reliance on no-code tools.
Objective: deliver reliable, maintainable applications capable of evolving with the business.
📍 Remote / Lille — Full-time or part-time availability.
  • French

    Native or bilingual

Can work on-site
Lille (up to 50km)

Experience

  • Cautioneo
    Feature Addition
    TECH
    April 2025 - May 2025 (1 month)
    Lille, France
    Project in React/Gatsby, Ruby-on-Rails, GraphQl, Docker
    Addition of a new service in the customer journey.
    React.js Node.js Docker Git GraphQL
  • Agent-bossfighter
    Creation of a Community Platform
    TECH
    January 2025 - April 2025 (3 months)
    Lille, France
    Project in React Ruby-on-rails Block-chain.
    Creation of the community platform for the web-3 game Bossfighter.
    Management of equipment and the return on investment it provides, dynamic update of tokens.
    Creation of dynamic tables to know all costs related to the game.
    Creation of the Tournament section to organize community events.
  • Winny Drancourt Web Development
    Freelance Developer
    TECH
    January 2025 - Today (1 year and 7 months)
    Lille, France
    Skills: Ruby-on-rails, React, LLM, Langchain, SQL, GraphQL, Docker, Linux, Shell, n8n, directus

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Education

  • Developer
    2024
    Developpeur
  • Scientific Baccalaureate
    Lycée Colbert
    2009
    Bac Scientifique

Skill set

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