Frontend Engineering Intern — React, AWS, Barcelona

LuxExperience; Barcelona; On-site; EUR 7,600 - 10,000; Full time

Benefits offered by this job

Mobile office

Mental health support

Urban Sports Club

Corporate benefits platform

Job summary

LuxExperience is seeking an Engineering Intern for our Barcelona office to contribute to frontend development and marketing tech tooling. You will build and maintain React-based interfaces, create lightweight libraries, and troubleshoot frontend issues while exploring serverless solutions.

The role emphasizes a builder mindset, strong JavaScript foundations, and collaboration with a broader MarTech team to deliver high-quality digital experiences.

Qualifications

• Strong fundamentals in JavaScript (ES6+) and React Experience.
• Ability to build custom libraries and utilities from scratch.
• Proficient in debugging frontend code and browser tools.
• Solid understanding of DOM, async JS, REST APIs, JSON, and Git.
• Familiarity with GTM or other tag management systems is a plus.
• Exposure to AWS microservices or serverless is a plus.
• Experience with TypeScript and bundlers like Webpack or Vite is a plus.

Responsibilities

• Build, test, and maintain custom JavaScript/TypeScript libraries and web components.
• Develop frontend interfaces and interactive features with React.
• Inspect network payloads and fix runtime errors across web platforms.
• Assist in exploring and deploying serverless scripts and microservices (AWS).
• Document code and maintain version control with Git.

Skills

JavaScript ES6+

React

Builder mindset

Debugging

DOM

Async JavaScript

REST APIs

Git

TypeScript

Webpack/Vite

Tools

Git

Webpack

Vite

NPM

Google Tag Manager

AWS

Job description

LuxExperience is seeking an Engineering Intern for our Barcelona office to contribute to frontend development and marketing tech tooling. You will build and maintain React-based interfaces, create lightweight libraries, and troubleshoot frontend issues while exploring serverless solutions.

The role emphasizes a builder mindset, strong JavaScript foundations, and collaboration with a broader MarTech team to deliver high-quality digital experiences.