Freelance Frontend Developer Amsterdam • BESTSELLER

Vacature in het kort

Volledige vacaturetekst

At BESTSELLER, we’re not just building e-commerce platforms. We’re building experiences that scale globally and make a real impact. And we’re doing it by giving our tech people the freedom to own their craft.

Right now, we’re looking for a Freelance Frontend Developer who’s confident working independently, fluent in JavaScript (yes, the real kind), and ready to help shape the frontend of our Salesforce Commerce Cloud environment.

If you’re someone who cares about clean code, performance, and creating great customer-facing experiences, this is your gig.

What you'll do

• Own the frontend of our Salesforce Commerce Cloud platform
• Build and maintain components using vanilla JavaScript (ES6+)
• Implement slick, responsive, and accessible UI using HTML5/CSS3
• Debug, optimize, and keep performance sharp
• Work with backend developers to get things done clean, fast, and right
• Handle complex tasks independently, without hand-holding
• Share ideas in code reviews and help us continuously improve

What you bring

This isn’t a junior gig. We’re looking for someone who knows frontend inside out and isn’t tied to frameworks to get things done.

Must-haves:

• Deep knowledge of vanilla JavaScript (ES6+) — no reliance on frameworks
• Strong command of HTML5 and CSS3, including accessibility and responsive design
• Experience with Git and modern development workflows
• You know how to debug and solve problems — and communicate clearly along the way
• Confidence working solo on tough challenges (and delivering well-documented code)

Nice-to-haves

• Experience with Salesforce Commerce Cloud
• Familiarity with Agile methods
• Knowledge of performance optimization techniques

Contract Details

• Type: Freelance Agreement
• Duration: 6 months, with a possible 6-month extension
• Location: Remote or hybrid (Amsterdam)

Why join us?

Because you want to work where tech meets purpose and not just another gig to build another shop. At BESTSELLER, you’ll find a team that respects your expertise, gives you the space to work your way, and trusts you to deliver real results.

We’re lean, focused, and growing fast. And we believe the best work happens when people own it.

Sound like you? Let’s talk.
You bring the code. We’ll bring the platform and the freedom to shape it.

About BESTSELLER E-Commerce
At BESTSELLER, we are more than 15,000 people working for over 20 fashion brands such as JACK & JONES, SELECTED, VERO MODA, ONLY, PIECES, VILA, OBJECT, MAMALICIOUS, NAME IT, NOISY MAY and Y.A.S. At BESTSELLER E-Commerce, we are an international team of 170 people from more than 40 nationalities with the purpose to drive all e-commerce functions at BESTSELLER. With our office in the heart of Amsterdam as well as locations in Poland and Denmark, we are supporting all fashion brands of the BESTSELLER family and sell online in 15 countries around the world. We work in an environment where fashion meets technology. Challenging ourselves to offer the best experience to our customers and stakeholders and to work with the latest technologies is what drives us. As a team, we value autonomy and flexibility. We thrive in a flat organisation, where everyone has the chance to grow and learn. For more information, please go to .