Senior Frontend Engineer (React/TypeScript) – Global Retail UX

Tamarind Intelligence; Barcelona; Híbrido; EUR 70.000 - 110.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Young environment

10% discount on MediaMarkt site

Flexible Pay MediaFlex program

Flexible working time/Home office

Office options in Barcelona

Training budget

Language classes

Birthday off

Cutting-edge tech stack

Descripción de la vacante

MediaMarktSaturn Technology is seeking a senior frontend engineer in Barcelona to join the Tech Hub team. You will design, build, and optimize scalable React/TypeScript frontend features for a global webshop, collaborating across product, design, and backend teams.

You will own features end-to-end, emphasizing performance, accessibility, and maintainability while leveraging advanced testing with RTL/Playwright. Hybrid work with Barcelona offices is offered.

Formación

• 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 environments.
• Solid understanding of web performance, accessibility, and responsive design principles.
• Hands-on experience with testing strategies and tools (e.g., 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

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 (e.g. GraphQL) to deliver seamless user experiences.
• Ensure high code quality through testing, debugging, and continuous improvement (e.g., React Testing Library, Playwright).
• Collaborate closely 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.

Conocimientos

JavaScript

TypeScript

React

Frontend architecture

Testing (RTL/Playwright)

API integration

AI & agent systems

Ownership

English fluency

Herramientas

React Testing Library

Playwright

Descripción del empleo

MediaMarktSaturn Technology is seeking a senior frontend engineer in Barcelona to join the Tech Hub team. You will design, build, and optimize scalable React/TypeScript frontend features for a global webshop, collaborating across product, design, and backend teams.

You will own features end-to-end, emphasizing performance, accessibility, and maintainability while leveraging advanced testing with RTL/Playwright. Hybrid work with Barcelona offices is offered.