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Alberto Sanchez De La Nieta PerezAS

Alberto Sanchez De La Nieta Perez

Senior Frontend Engineer

€400/day
Madrid, ES
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Alberto

Frontend Engineer with 5 years of experience in developing complex, high-traffic web products. Specialized in **React, TypeScript, and Next.js**, with a solid track record in frontend architecture, large-scale e-commerce, and reusable component development.
Currently working as aSenior Frontend Engineerat **Stradivarius (Inditex)**, part of the checkout team, one of the most critical areas of the business, serving millions of global users. I have also worked on desktop applications connected to medical hardware, web games, and platforms built from scratch. I integrate AI tools (GitHub Copilot, Claude Code) into the development workflow to improve productivity and architectural consistency.
  • Spanish

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Stradivarius • · Inditex ◦ · vía Axpe Consulting
    Senior Frontend Engineer
    SOFTWARE PUBLISHING
    May 2023 - Today (3 years and 3 months)
    Madrid, Spain
    ▸ Development of new features in the checkout of a high-traffic e-commerce platform within Inditex's global ecosystem.
    ▸ Participation in the redesign and complete reconstruction of the purchase funnel (shipping, forms, order summary, and confirmation).
    ▸ Migration of legacy architectures from React Class Components to Functional Components + Redux.
    ▸ Participation in technical estimations and architectural and implementation decisions.
    ▸ Integration of Spec Driver Development methodology with AI-assisted development flow using GitHub Copilot.
    Stack: React
    • · TypeScript
    ◦ · Next.js
    ◦ · Zustand
    ◦ · Jest
    ◦ · React Testing Library
    ◦ · Storybook
    Next.js Typescript Debugging performance optimization React.js
  • techsociety
    Frontend Developer
    SOFTWARE PUBLISHING
    January 2022 - May 2023 (1 year and 4 months)
    Madrid, Spain
    ▸ WAD Viewer — Cross-platform desktop app (Electron) for real-time video and image capture via WebSockets. — End-to-end development of a contemporary art web platform from scratch. Responsible for frontend architecture, component system, and complete UI implementation. saishoart.com
    Stack: React
    • · TypeScript
    ◦ · Electron
    ◦ · Styled Components
    ◦ · WebSockets
    ◦ · Vite
    ◦ · Cypress
    ◦ · React Testing Library
    Typescript Next.js Electron Web development Web Performance
  • R. Franco Digital
    Frontend Developer
    SOFTWARE PUBLISHING
    March 2021 - December 2021 (9 months)
    Madrid, Spain
    ▸ Complete development of the online casino game Christmas Nightmare with Phaser 3 + TypeScript.
    ▸ Participation in the development of Wild West 2 for the iGaming catalog.
    Stack: TypeScript
    • · JavaScript
    ◦ · React
    ◦ · Phaser 3
    ◦ · HTML5 Canvas
    ◦ · Webpack
    Typescript React.js Phaser Debugging Web development

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Education

  • Higher Technician in Web Application Development (DAW)
    IES Arcipreste de Hita
    2021
    Técnico Superior en Desarrollo deAplicacionesWeb (DAW)
  • React with TypeScript
    TotalTypeScript
    2025
    React with TypeScript TotalTypeScript

Skill set

Categories