Overview In this role you will design, build, and maintain scalable PDP web interfaces using React and TypeScript. You'll create reusable frontend components and collaborate closely with product, design, and backend teams to deliver data-driven, accessible user experiences. You will drive frontend performance, ensure code quality through testing, and contribute to planning across multiple workstreams.

This is an opportunity to shape the product detail experience across a leading European retailer's web platform.

Compensaciones / Beneficios 10% discount on MediaMarkt website

Flexible Pay (MediaFlex program)

Adaptable working hours and home office option

Training budget for skill development

Language classes (English, Spanish, German)

Birthday off

Responsabilidades Design, develop and maintain scalable web applications using React and TypeScript

Build and evolve reusable UI components and frontend architectures with a focus on performance, accessibility, and maintainability

Integrate frontend applications with APIs (GraphQL/REST) to deliver seamless experiences

Ensure high code quality through testing, debugging and continuous improvement (e.g., React Testing Library, Playwright)

Collaborate with product, design,



and backend teams to deliver user-centric and data-driven solutions

Lead or contribute to feature planning, estimation, and implementation across multiple workstreams

Drive improvements in frontend performance, developer experience, and engineering best practices

Requisitos principales 5–8 years of experience as a Software Engineer

Strong expertise in JavaScript and TypeScript, with deep experience in React

Proven experience building scalable and maintainable frontend applications in production

Solid understanding of web performance, accessibility, and responsive design principles

Hands-on experience with testing strategies and tools (React Testing Library, Playwright)

Experience integrating APIs, ideally with GraphQL and/or REST

Practical experience using AI and agent systems

Ability to take ownership of features from concept to delivery

Structured and analytical way of working with strong problem-solving skills

Strong communication skills and the ability to collaborate with cross-functional teams

Experience mentoring other engineers and contributing to a culture of continuous improvement

Fluency in English collaboration problem-solving clear communication

React

TypeScript

JavaScript

📌 Experienced Software Engineer - Webshop (m/f/d) (Barcelona)
🏢 Mediamarktsaturn
📍 Barcelona