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Raphaël GiagnorioRG

Raphaël Giagnorio

Supermalter

Full-Stack Developer TypeScript | React | Node

€550/day
19 projects
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Raphaël

👾 IT developer specializing in the React.js/TypeScript/Node.js ecosystem, I implement solutions to serve your business needs and solve complex problems.

📼 I am familiar with the audiovisual field, if your project falls within this area of activity.

🎨 With front-end expertise, I enjoy high-performance applications with well-thought-out UX, and I have an appetite for graphic design and web design.

🤝 My experience as a lead developer allows me to manage a team of developers by adopting an agile methodology and fostering smooth collaboration with different trades.

🚴 The technologies I am comfortable with:
- Front-end:TS/JS, React.js/Next.js, Redux, CSS/Sass, Maplibre GL JS/Mapbox, Storybook
- Back-end:Node.js, Express, Strapi, MongoDB
- Ops:Docker, Kubernetes, AWS
- Search Engines:Elasticsearch, Algolia
- Tests:Jest, React Testing Library, Cypress

Open-source projects (notably Gai Savoir repos): github.com/kyldex

Feel free to contact me.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 15km)

Experience

  • Michelin
    Full-Stack Developer
    AUTOMOBILE
    November 2024 - Today (1 year and 6 months)
    Paris, France
    Full-stack development on the Robert Parker Wine Advocate application.
    Technical stack: Meteor.js/Node.js/React
    Meteor.js MongoDB React.js Amazon Web Services
  • Groupe SNCF
    React.js Developer / Front-End Lead Dev
    TRANSPORTATION
    June 2021 - September 2024 (3 years and 4 months)
    Paris, France
    I worked on various projects:

    CARTO (awarded the Smart City prize)
    Innovative web mapping solution covering over 400 stations:
    - Development of the web SDK inReact.js/TypeScript
    - Map generation with **MapLibre GL JS**, configuration of GeoJSON layers and sources, display of pedestrian route traces and guidance
    -Agilemethodology with two-week sprints, tracking onJira
    - Unit and integrationtestswith Jest/React Testing Library. End-to-end tests with Cypress.
    - Gitflow workflow, **code reviews**, tracking of merge requests
    - Continuous integration and deployment:Docker,Jenkins
    ➞ https://www.transilien.com/fr/page-medias/plan-interactif-transilien

    TOUS NUMÉRIQUES
    -Tech Lead Frontmanagement for the launch of an internal e-learning platform
    -Trainingand support for junior developers
    - Various technical studies, such as SSO management
    - Technical Stack:Next.js/React/Strapi

    WCS (SNCF Web Components)
    The team develops a library of React and Angular components created from the SNCF **design system**:
    - Used internally by about thirty projects
    - Leverages web components with Stencil.js
    - PublicStorybookdocumentation
    - Close collaboration with experts from theAccessibility team
    - Open-sourced: https://gitlab.com/SNCF/wcs
    ➞ https://wcs.dev.sncf
    React.js Typescript Web Mapping Next.js JavaScript
  • Keeze
    Website Redesign
    CULTURE
    February 2021 - May 2021 (3 months)
    - Improvements to the filtering functionality for space search
    - SEO issue fixes, dynamic rendering implementation
    - Custom integration of Figma mockups
    - Stack: ReactJS / MeteorJS / MongoDB / Amazon S3
    ➞ https://keeze.co
    React.js Meteor.js MongoDB HTML5 CSS3

Reviews

5.0

Out of 7 ratings

KimK

Kim

ITNOVEM - Paris

Reviewed on 12/19/2022

For Raphael's first mission, he had to upgrade our indoor mapping Web SDK which hadn't evolved technically for 2 years. His quality work, his expertise, and his advice led us to extend his mission several times. He became the technical referent for the Web Front part of our Web SDK and our applications. The work done has always been very good, Raphael has always kept the success of our projects in sight and has integrated and collaborated perfectly with the existing teams to achieve this goal. I encourage you to entrust your projects to him if you want to give them the best chance of success.
S

Shaun

Keeze

Reviewed on 4/29/2021

Raphael is an outstanding worker! For our, not the least difficult, project, Raphael showed great professionalism! In our teams, we don't have developers, and it's often difficult for us to communicate with freelancers on these complex and precise subjects. Raphael took the time to explain everything to us, advise us, and guide us towards several very interesting solutions for each problem encountered. We had regular check-ins and we are more than satisfied with the final result!! We recommend Raphael 200% and would work with him again with the greatest pleasure! Thanks again to him!

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Education

  • Bachelor, Développeur d'application
    OpenClassrooms
    2020
    Spécialité Front-End

Certifications

  • Create a web application with React.js
    OpenClassrooms
    2021
    React.js
  • Optimize your site's SEO by improving its technical performance
    OpenClassrooms
    2021
    SEO Audit JavaScript SEO

Skill set

Categories