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Willem B.WB

Willem B.

Lead Frontend Developer / React

€750/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Willem

Senior/Lead Frontend Developer. I help my clients develop and deploy fast, highly interactive, and data-rich web experiences using a 100% JavaScript stack: React, Vue, GraphQL, Node. My motivation is to empower the end-user of a website, app, or service. I enjoy simple and beautiful interfaces, but also those that allow for effective data visualization and interaction (e.g., messaging, search engines, shopping carts).

I work with my colleagues, POs, UX, DevOps in Agile SCRUM or Kanban teams. I enjoy learning and sharing my experience: peer reviews, pair programming, onboarding, and mentoring junior profiles. I am open to on-site or remote missions, although I prefer face-to-face collaboration.

I have e-Commerce (Club Med, Casino Franprix) and B2B (ALTEN, Bayer, Pole Emploi) experience. Lately, I've been particularly interested in Frontend architecture challenges: SSR, JAMstack, CDN, caching, events.

#ReadytoHelp
  • French

    Native or bilingual

  • English

    Native or bilingual

  • German

    Fluent

  • Japanese

    Basic

Can work on-site
Paris (up to 50km), Paris (up to km), Boulogne-Billancourt (up to km), Issy-les-Moulineaux (up to km)

Experience

  • PMU PARTENAIRE
    Senior Frontend Developer
    VIDEO GAMES AND ANIMATION
    August 2020 - Today (5 years and 10 months)
    Paris, France
    Typescript React.js Node.js
  • Club Med
    Senior Frontend Developer
    TRAVEL AND TOURISM
    October 2018 - July 2020 (1 year and 10 months)
    Paris, France
    • Freelance Frontend Lead: tech/architecture decisions, onboarding and coaching developers
    • Team of 7 devs, 3 POs, 2 UX/UI. Agile Kanban methodology
    • Development of editorial pages (SEO) and product pages for 46 international websites (headless CMS)
    • Development of "Search", "Booking Calendar" components and booking forms
    Frontend Development React.js redux Next.js GraphQL Flow Webpack Babel Jest React-Testing-Library Formik
  • Hello JAI
    CTO, Fullstack Developer
    HUMAN RESOURCES
    October 2017 - September 2018 (1 year)
    Paris, France
    • CTO/CPO of the startup JAI. Clients: Pôle Emploi, RégionsJob, Bayer, AKKA.
    • Team of 3 devs, 1 PO. Agile Kanban methodology.
    • Creation of the 1st SaaS platform for recruitment chatbots:
    • "Webchat" module integrated into client websites
    • "Admin" interface for recruitment management
    React.js Redux Gatsby Node.js Express Amazon Web Services MongoDB Socket.io

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Education

  • Fullstack Web Developer
    Le Wagon
    2015
  • Master of Science
    Georgia Institute of Technology
    2009

Skill set

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