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Joan Rafael Serrano PerezJR

Joan Rafael Serrano Perez

Frontend Engineer

€300/day
3 projects
Barcelona, ES
3-7 years

Average response time: 1 hour

About Joan Rafael

Soy un problem resolver, me encanta desarrollar las soluciones de problemas de cualquier tipo. Gracias a mis anteriores experiencias también tengo mucha experiencia tratando con necesidades de producto, creo que mi perfil es un muy buen balance de una persona que sabe hacer cosas complicadas a nivel técnico con la capacidad de entender producto y poder atacar los problemas a consecuencia.
Me gusta el trabajo bien hecho y me exijo el 100% en todas las cosa que hago.
  • Spanish

    Native or bilingual

  • English

    Fluent

  • Catalan

    Native or bilingual

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

Experience

  • WalletConnect
    Senior Frontend Engineer
    February 2025 - Today (1 year and 5 months)
    - Microanimations: Improved the user experience by adding microanimations to the webapp.
    - Analytics: Created strong components for analytics to track the performance of Appkit
    - Added Unit Test: Added unit test to the project and keep high code coverage (99%) in non react components.
    Web3 Next.js React.js Typescript JavaScript
  • Clikalia
    Senior Frontend Engineer
    October 2022 - February 2025 (2 years and 4 months)
    Barcelona, Spain
    + Created and planned monorepo structure project with webpack federation
    + Build and planned monorepo Next.JS website with a strong SEO focus
    + Created a Design System with Styled components using CVA and building our private component
    library.
    + Refactor the oldest project of the company to JavaScript and Typescript and Module Federation. Technologies: Next.JS, TurboRepo, Typescript, Monorepos, Styled Components, React API context,
    Scrum and Agile methodologies
  • Coches.com
    Senior Frontend Engineer
    January 2022 - October 2022 (9 months)
    Barcelona, Spain
    + Build and planned monorepo Next.JS website with a strong SEO focus
    + Build a modern software architurcture for the Frontend team to work on
    + Implement Cypress Testing and Unit testing using React Testing Library
    + Created a Design System with Module CSS and building our private component library
    Technologies: Next.JS, TurboRepo, Typescript, Monorepos,Styled Components, React API context

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Skill set

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