JavaScript Developer

Shalion is a data and insights-driven company that serves world-class manufacturers and brands globally. Through our Digital Shelf Optimization, Retail Media, and Food Service Aggregators solutions, we provide innovative tools for e-commerce monitoring.

At Shalion, we empower brands to make smarter business decisions in eCommerce by delivering actionable data and insights on online product prices, availability, share of search, and more. We operate across 1000+ e-retailers in 60+ countries, serving industry giants such as Heineken, Lego, Danone, Nestlé, and JDE.

As a leader in data intelligence, we specialize in gathering, analyzing, and applying proprietary artificial intelligence to deliver relevant data and monitoring tools, helping our clients maximize their e-commerce performance.

The role

As a JavaScript Developer at Shalion, your responsibilities include:

Develop and maintain standardised libraries for our scraping tools using TypeScript.

Create reusable components for data extraction across multiple retailers (ie. an abstract layer for Playwright and Puppeteer).

Build error handling and retry mechanisms for scraping operations.

Write unit-testing and performance tools to avoid backward compatibility issues and speed up/optimize our current flows.

Understand the scraping universe and collaborate into improving the tools and components for it.

Collaborate with Data Operations and Backend teams.

Your profile should include the following:

2+ years of JavaScript/TypeScript experience.

Worked on software development projects before.

Experience with web scraping or browser automation (Playwright, Puppeteer, Selenium).

Understanding of DOM, CSS selectors, and web page structure.

Knowledge of asynchronous JavaScript and HTTP protocols.

Strong debugging and problem-solving skills.

Experience with Git and command-line tools.

Soft Skills:

Resilience: Handle changing website structures

Curiosity: Eager to learn new technologies

Quality-Focused: Value testing and maintainable code

Interview process

First interview: Recruitment team screening

Second interview: programming assignment

Third interview: Tech Lead and Chief Data Officer

What we offer you

An international team – Work with colleagues from 10+ nationalities.

A dynamic and innovative environment – Be part of a high-performing team.

Hybrid work model – 3 days in-office, 2 days remote.

Impactful work – Contribute to a challenging and innovative project.

Flexible benefits – allocate part of your gross salary (pre-tax) to meal vouchers, transport allowance, and private healthcare at a preferential rate.

Office perks – Fresh fruit and specialty coffee daily.

Contract: Permanent

Salary range: from 28,000€ to 35,000€ gross/yearly, according to experience and seniority.

Great location – Office in Barcelona’s Sarrià-Sant Gervasi district.

Shalion Data Services Limited is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.