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Frontend Web Developer in Barcelona


Est. Salary
26,000 - €40,000
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Job Description

21 Buttons is changing the fashion game - through technology and talent. It has become the leading fashion social network in Europe where more than 6 million users come to get inspired by their favourite influencers and friends’ ready-to-shop content. With over 10 million outfits shared, 21 Buttons allows anyone no matter their audience size to earn revenue from sharing their personal style.

Launched in our first country just over 2 years ago and now with more than 3000 influencers across the UK, Germany, Italy and Spain, we’re growing faster than ever and now are keen to find someone as passionate as we are about our project to join the team at this exciting stage of our company’s journey of propelling our ambition of Stateside expansion.

Although our focus is fashion, 21 Buttons is an engineering company. We are looking for talented people with a broad set of technical skills who are ready to tackle some of the technology's greatest challenges and make an impact.

We are looking for a proven engineering leader to join our growing Front End team. As the Lead Front End Engineer, you’ll own the 21 Buttons web app, and be responsible for shaping key technical decisions as we scale to millions of users.

You will lead the development of our Front End infrastructure from the ground up, and play a fundamental role in defining and developing our technologies and internal processes as we continue to grow!


Design and develop the web app with best practices as we scale our platform and team;

Being involved in technical site audits, web analytics, setup A/B tests and enhance search engine optimization;

Ensure robustness, performance and failure characteristics of the system;

Work closely with the product team in creating roadmaps and timelines for product development.


BS degree in Computer Science, similar technical field of study or equivalent practical experience;

Have a passion for building software development processes and engineering culture;

Experience building Web Apps with React + Redux;

Knowledge of unit testing frameworks, including Mocha, Chai, or Jest;

Well-versed in HMTL5/CSS3 for responsive designs (mobile first);

Experience working with Restful APIs to integrate web applications to server side systems;

Understanding of design patterns and architectures;

ES6 or TypeScript;

Experience building Progressive Web Apps (PWA).

What else is important for you to know?

  • Talented and collaborative team who will both support and challenge you;
  • Market competitive salary;
  • This position is full-time and based in Barcelona.

Feel free to get to know us a bit more!

Here are a few places you can visit to learn more about what our tech team is doing:


We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status


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