Front-end Engineer

  • Carrer de la Ciutat de Granada, Barcelona, Spain
  • Full-time
  • Department: Technology
  • Contract Type: Long term/Permanent contract

Company Description

We are a world leading online classifieds business that reaches more than 200 million people each month through our household name brands across 16 countries.  Our brands include Leboncoin, OLX, fotocasa, Infojobs, Subito and Shpock to name a few.

Our brands are supported by global tech hubs in Paris and Barcelona. Their goal is to develop common global product & innovation platforms which all of our brands can use; this means using bleeding edge technology to create highly scalable, highly customisable and secure products and components to free up the development time of our brands and leverage our access to global data.

Job Description

Messaging Team

The Messaging team at Adevinta owns the software and infrastructure that sends over 5 million messages every day and serves millions of customers worldwide. Up to 20 Marketplaces from the Adevinta group all over the world use our infrastructure and integrate their applications using our SDKs to enable chat in their web sites. Our team is formed by more than 15 professionals from different areas such as UX, Product and Tech that work together to develop top-of-the-line software products. Our solution includes the most advanced features, based on Machine Learning to provide the best experience to our users and our Marketplaces.


  • As Front-End Software Engineer you will work in a multi-disciplinary team, and help to build a responsive frontend plug-and-play component for the Messaging Center

  • Help and contribute in the applications architecture definition.

  • Be creative and experiment with new solutions but pragmatic and committed to code optimization, maintainability, and quality.

  • Work with product owners and designers to prioritise and home features.

  • Optimize web applications for maximum speed and scale.

  • Support diverse clients from high end desktop computers to mobile devices.


  • Excellent experience in web development for both desktop and mobile platforms.

  • Deep expertise in Javascript and it’s various cross-platform and cross-browser quirks

  • Experience with some of the common Javascript frameworks and libraries (Vue, AngularJS, React, Polymer, lodash, rambda)

  • Experience with frontend testing tools (karma, mocha, jest, Cypress, Selenium)

  • Experience with HTML5, CSS3 and CSS preprocessors (Sass, Less, Stylus)

  • Good understanding of User Experience, i18n/l10n and accessibility

  • Experience with AJAX and RESTful APIs

  • Knowledge of build tools (Webpack, Parcel, Rollup)

  • Strong understanding of web performance, scalability, and implementation constraints. 

  • High comfort level working with multiple stakeholders from different parts of the organization toward a consensus.

Desirable Experience (which you’ll be exposed to, if you’re not already)

  • Realtime communication (websockets, BOSH, XMPP)

  • CI/CD build pipelines (Spinnaker)

  • Storage and CDN solutions (AWS S3, CloudFront) 

  • Previous development experience with either Java, Python, or C++ (nice to have)

Additional Information

Adevinta is an equal opportunity employer and value diversity in our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status or disability status. If any of the above ticks your boxes, then why not Apply Now to find out more

Privacy Policy