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Roberto GallegoRG

Roberto Gallego

Front-End Software Engineer specialized in React

€333/day
Rennes, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Roberto

I am a Front-End Software Engineer specializing in React.js and TypeScript. I create performant, scalable, and modern web applications tailored to your needs and those of your users.

Thanks to my experience, I can help you to:

Develop interactive and responsive interfaces.
Optimize the performance and structure of your web applications.
Ensure responsive design and a fluid user experience across all devices.
I stand out for my versatility and rigor, as well as my ability to deliver complete solutions from design to deployment.

I typically manage projects such as:

React / TypeScript websites and web applications.
HTML5 / CSS3 integration and UX/UI optimization.
Refactoring or improving existing applications.
My goal is to transform your ideas into concrete, high-quality digital solutions, while respecting your deadlines and requirements.
  • Spanish

    Native or bilingual

  • French

    Native or bilingual

  • English

    Fluent

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

Experience

  • Eureden
    Front-End Engineer React Typescript
    AGRICULTURE
    October 2025 - April 2026 (6 months)
    Vannes, France
    Design and implementation from scratch of the front-end architecture and design system for Eureden, a major player in the agri-food industry in Brittany. Development of a high-performance and scalable SPA (SILEG) based on a monorepo architecture (Turborepo) with TypeScript, Vite, and tsdown. Implementation of Storybook for component documentation and standardization, as well as a robust testing strategy with Vitest and React Testing Library.
    Storybook Vite.js Typescript React Testing Library HTML/CSS/JS
  • Klarys
    Permanent Contract Front-End Developer ReactTypescript HTML CSS JS
    TECH
    October 2019 - November 2024 (5 years and 1 month)
    Rennes, France
    Front-End Engineer specializing in SaaS projects in monorepo, I design and develop innovative features, reusable UI components, and dynamic forms. I implement high-performance Design Systems, optimize CI/CD pipelines and tests, and ensure the reduction of production bugs. My approach favors continuous improvement of UX and performance, while ensuring smooth integration of new features into the application. I work closely with product and design teams to deliver robust and maintainable solutions, adapted to user needs and business objectives.
    Typescript React.js Monorepo React Testing Library CI/CD Management
  • Noop
    Fullstack Developer React Native Java Internship
    TECH
    January 2019 - December 2019 (11 months)
    Paris, France
    During my internship at Noop, I held the position of Fullstack Developer and participated in the design and development of a React Native mobile application built entirely from scratch. I was involved in all stages of the project: needs analysis, architecture definition, interface development, backend integration, and functional testing.

    On the front-end side, I developed the application in React Native, implementing a clean, scalable, and easy-to-maintain structure. I created the screens, managed navigation, integrated APIs, and ensured the quality of the user experience.

    On the back-end side, I worked with a Java environment, where I contributed to setting up endpoints, managing data, and communication between the mobile application and the server. I also participated in debugging, performance improvements, and technical documentation writing.

    This internship allowed me to strengthen my full-stack skills, work on a complete development cycle, and deliver an operational application that meets the project's functional requirements.
    React Native Video

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Education

  • French language, professional skills
    Yesnyou Cloe
    Langue française, compétences professionnelles
  • Certificate Reactworkshop
    Epic React
    2023
    Certificate Reactworkshop

Skill set

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