Barcelona, ES

Frontend Engineer (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 12 Marketplaces from the Adevinta group all over the world use our infrastructure and integrate their applications using our SDKs to enable chat on their websites. Our team is formed by more than 30 professionals from different areas such as UX, Product, Data, and Tech that work together to develop top-of-the-line software products. Our solution includes the most advanced features 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 to the application’s 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 prioritize features.

  • Optimize web applications for maximum speed and scale.

  • Support diverse clients from high-end desktop computers to mobile devices (not IE!).



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

  • Deep expertise in Javascript and its various cross-platform and cross-browser quirks

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

  • CI/CD build pipelines (Travis, Spinnaker)

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

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

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

  • Experience with AJAX and RESTful APIs

  • Knowledge of build tools (Webpack)

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

  • You’re user-centric in design and development decisions

  • You have a good understanding of systems design, algorithms and data structures

  • If you have experience with distributed computing technologies it’s a plus

  • 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, XMPP)

  • Storage and CDN solutions (AWS S3)

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