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Gisela S.GS

Gisela S.

Frontend Developer | Next.js | React | Redux

€290/day
Barcelona, ES
8-15 years
Typescript
JavaScript
React.js
Next.js
Frontend Development

Average response time: 1 hour

Freelancer profile translated to English.
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About Gisela

I am a Frontend Developer specializing in React, TypeScript, and Next.js, with over 9 years of experience in web development. I work with companies and teams that need to build, improve, or maintain web applications, dashboards, administration panels, internal tools, and business-oriented interfaces.

I can help you develop reusable components, integrate REST APIs, improve user experience, optimize performance, resolve bugs, refactor code, and evolve existing digital products.

I focus on creating clear, responsive, and maintainable interfaces, paying attention to both technical aspects and usability. I have experience working in agile teams with design, backend, QA, and product, adapting to different contexts, stacks, and project needs.

My main technologies are React, Next.js, TypeScript, JavaScript, HTML, CSS, Styled Components, Tailwind, Redux, Jest, and React Testing Library.
Digital and IT Services
Digital Business Models
Gaming and Animation
Retail (Small Business)
E-commerce

  • Spanish

    Native or bilingual

  • English

    Conversational

Remote only
Primarily works remotely

Experience

  • Profesional independiente
    Frontend Developer / Web Development
    July 2025 - Today (11 months)
    Barcelona, Spain
    ● Developed web solutions with React, Next.js, and TypeScript in independent projects and collaborations with other professionals.
    ● Integrated APIs and external services to connect web applications with business processes and internal tools.
    ● Made adjustments, functional improvements, and automations aimed at optimizing processes and user experience.
    ● Collaborated with clients and technical teams in the definition and evolution of digital solutions.
    Next.js Typescript React.js TailwindCSS HTML5
  • Cleverpy
    Senior Frontend Developer
    May 2023 - August 2024 (1 year and 3 months)
    Barcelona, Spain
    ● Developed frontend functionalities for water monitoring and control systems, contributing to a modular architecture oriented towards business logic.
    ● Implemented reusable components, dashboards, and real-time visualizations that facilitated operational monitoring and decision-making based on key indicators.
    ● Optimized code, performance, and responsive design to improve experience on different devices and facilitate product evolution.
    ● Incorporated unit testing with Jest and React Testing Library, improving the quality and stability of frontend components.
    ● Collaborated with technical and product teams in an agile environment, participating in the incremental delivery of new functionalities.
    React.js Frontend Development HTML5 Typescript CSS3
  • 1950Labs Remoto
    Frontend Developer
    March 2022 - November 2022 (8 months)
    Argentina
    • ● Developed frontend functionalities for a web application focused on generating advertising banners and assets in different formats and languages.
    • ● Performed code maintenance, bug fixing, UI improvements, and feature enhancements, contributing to the product's stability, usability, and adaptation to client requirements.
Check out Gisela's experience

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Education

  • Computer Systems Analyst
    Universitas Estudios Superiores
    2015
    Analista de Sistemas de Computación
  • React: From zero to expert (Hooks)
    Udemy
    React: De cero a experto (Hooks
Check out Gisela's education

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