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Full-Stack Developer in Barcelona


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Job Description

We're looking for a developer to join our web team to build an universal application based in ReactJS, using flux architecture (though Redux) and NodeJS. We write code in ES6 (transpiling with babelJS) and are using a bunch of really nice projects to make it real: react-router, react-virtualizer, webpack...

As a universal app your work will be focused to make things work both client- and server-side. Being an incredible designer is not required although some basic knowledge of design is appreciated.

We value a person with a wide knowledge of all the involved technologies although it doesn't have to have an in-depth one. We value someone who's always motivated and ready to take action. Someone who wants to learn and have a good time while working.


  • Knowledge of Node.js and the Express framework. Other frameworks would be appreciated (StrongLoop, Hapi…)
  • Knowledge of server-side templating languages. We use Handlebars.
  • Understanding what asynchronous programming is all about, its glory and pains.
  • Working knowledge consuming REST APIs and user authentication/authorization between multiple systems, servers, and environments.
  • Understanding fundamental design principles behind a scalable application.
  • Understanding of code versioning tools. We use Git.
  • Experience with package managers and good knowledge on Semantic Versioning. We currently use npm but are thinking of changing to yarn.
  • Must love webpack.
  • Understanding of front-end technologies.
  • Appreciates the value of tests and understands that a job done means a job with tests. We mainly use mocha.
  • Writing reusable, testable, and efficient code.
  • Design and implement low-latency, high-availability and performant applications. Knowledge on redis and AWS related technologies will be a plus
 We offer:
  • Tech meetups & training sessions
  • Dental and health insurance
  • Exceptional work environment
  • Team-building activities
  • Candy Bar (free snacks and drinks)
  • On-site physical therapy
  • Language Courses
  • Competitive salary


About letgo

  • Classifieds

  • Privately Held

  • Barcelona, Spain

  • 100-200 employees

  • 2015

letgo is the fastest growing mobile marketplace to buy and sell locally. We are powering a new, secondhand economy on mobile.

Recently named one of Europe's "Hottest Startups"​ by Wired, letgo's recently been featured by The New York Times, The Wall Street Journal, Fast Company, Fortune, Bloomberg, TechCrunch and others.

letgo's team is made up of 120 people of 25 different nationalities in our New York and Barcelona offices. We are a diverse, passionate group that’s connecting millions of buyers and sellers. Our nimble, expert team is fueled by deep experience and rich analytics, allowing us to innovate with cutting-edge features like image recognition powered by artificial intelligence, and the letgo Commercializer.

We're looking for people who are as passionate as we are and, just as importantly, who embrace constant change and innovation. If that sounds like you, check out our open positions at

Official website, founding date, employees, how did it all begin... Do you know the whole story?

Tell Us!

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