Intern Engineering (MarTech)

NET-A-PORTER; Barcelona; On-site; EUR 7,600 - 10,000; Full time

Benefits offered by this job

Mobile office (up to 20% hours)

Monthly gross salary 800€

Mental health & well-being support

Urban Sports Club

Corporate benefits platform

Job summary

LuxExperience is seeking a Frontend Development Intern to build and refine custom JavaScript/TypeScript libraries and web components for marketing tech operations. You will contribute to frontend interfaces using React and ES6+ in a hands-on, collaborative environment.

The role emphasizes debugging, microservices exploration with AWS, and delivering well-documented, maintainable code. On-site in Barcelona, with a monthly gross salary of 800€ and supportive benefits.

Qualifications

• Strong fundamentals in JavaScript (ES6+) and hands-on experience with React.
• A builder mindset and the ability to create custom libraries or utilities from scratch.
• Solid debugging skills: inspect browser logs, network requests, and fix frontend issues.
• Knowledge of DOM, asynchronous JS (Promises, Async/Await), REST APIs, JSON data, and Git.
• Familiarity with Google Tag Manager (GTM) or other tag management systems is a plus.
• Exposure to AWS microservices, serverless functions (Lambda) or cloud storage is a plus.
• Experience with TypeScript, bundling tools (Webpack, Vite), or npm packaging is a plus.

Responsibilities

• Custom Software Development: Build, test, and maintain JavaScript/TypeScript libraries and web components for marketing tech operations.
• Frontend Web Engineering: Develop and optimize web interfaces using modern frameworks (React, ES6+).
• Code Debugging & Troubleshooting: Inspect payloads and fix runtime errors across web platforms.
• Cloud & Microservices Exploration: Help develop and deploy serverless scripts, webhooks, and microservices (AWS).
• Engineering Best Practices: Write maintainable code, manage Git, and document internally.

Skills

JavaScript (ES6+)

React

TypeScript

Frontend development

Debugging

REST APIs

Git

Async/Await

Tools

Webpack

Vite

NPM

GTM

AWS

Serverless (Lambda)

Job description

LuxExperience is the leading digital, multi-brand luxury group and the online shopping destination for luxury enthusiasts worldwide. LuxExperience operates a portfolio of some of the most distinguished store brands in digital luxury and creates communities for luxury enthusiasts with unique digital and physical experiences. Mytheresa, NET-A-PORTER and MR PORTER, jointly comprising the luxury segments of LuxExperience, offer highly curated edits of the most prestigious luxury brands across the world, featuring womenswear, menswear, kidswear, fine jewelry & watches, and lifestyle products. YOOX, which forms the off-price segment of LuxExperience, is the leading destination for multi-brand off-season online luxury shopping. The NYSE listed group operates worldwide.

What You Will Do

• Custom Software Development: Build, test, and maintain custom JavaScript/TypeScript libraries, lightweight SDKs, and web components from scratch to support marketing tech operations.
• Frontend Web Engineering: Develop and optimize web interfaces and interactive features using modern frameworks (React, JavaScript ES6+).
• Code Debugging & Troubleshooting: Inspect network payloads, track down runtime errors, and fix broken scripts or integration bugs across web platforms.
• Cloud & Microservices Exploration: Assist in exploring, developing, and deploying serverless scripts, webhooks, and microservices (with a focus on AWS architecture).
• Engineering Best Practices: Write maintainable code, manage version control via Git, and produce technical documentation for internal developer references.

Who You Are

• Core Web Development: Strong fundamentals in JavaScript (ES6+) and hands-on experience building applications with React.
• Builder Mindset: A strong inclination to build custom libraries, utilities, or personal/side projects from scratch rather than relying solely on third-party libraries.
• Debugging Expertise: Ability to systematically troubleshoot frontend code, inspect browser console logs/network tab requests, and resolve script execution issues.
• Software Foundations: Solid understanding of DOM manipulation, asynchronous JavaScript (Promises, Async/Await), REST APIs, JSON data structures, and Git.
• Experience with Google Tag Manager (GTM) or other Tag Management Systems (TMS) is a plus.
• Exposure to AWS microservices, serverless functions (e.g., Lambda), or cloud storage/hosting is a plus.
• Basic understanding of web tracking architecture (tracking pixels, cookies, or event payloads) is a plus.
• Experience with TypeScript, bundling tools (Webpack, Vite), or package publishing (NPM) is a plus.

What We Offer

• Mobile office with up to 20% of your total contracted hours (job and position permitting)
• A monthly gross salary of 800.00€
• Individual support on mental health & well-being
• Urban Sports Club
• Corporate benefits platform

LuxExperience is an equal opportunities employer, we encourage people with a diverse range of backgrounds to apply. We recognize and celebrate the benefits that diversity brings to our workplace, our business and our customers. We welcome and will consider all applications regardless of race and nationality, religion, color, sex, pregnancy or related medical conditions, parental status, sexual orientation, gender identity, gender expression, age, status as an individual with a disability, or any other legally protected characteristics.

If you require any reasonable adjustments to complete your application, please do not hesitate to advise us accordingly.

Experience Level: InternWorkplace Type: On-site