Data Engineer in Barcelona


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Job Description

letgo's the largest app to buy and sell locally, with over 75M downloads and hundreds of millions of listings added by users. Named one of Wired’s “Hottest Startups” and among 2016’s “Best Apps” by Google, letgo’s the second fastest growing app in America since its 2015 launch. Business Insider calls letgo “the go-to app for selling your stuff” and it’s been featured by The New York Times, The Today Show, Mashable, Fast Company, The Wall Street Journal, Fortune and hundreds of others worldwide. It’s the only app with artificial intelligence and image recognition that make posting something for sale as simple as taking a photo. Users can easily browse local listings, chat instantly in the app and view each other’s profiles, ratings and reviews.

Based in our New York and Barcelona offices, our team of over 165 represents more than 20 nationalities. Fueled by our diverse expertise, letgo’s goal is to build the largest marketplace of its kind in the world. We’re looking for people who are as passionate as we are about creating something our users love and - just as importantly - who are excited by the challenge.

We're looking for a Data Engineer to be a part of our Business Intelligence team! You’ll work together with all departments (Product, Marketing, Content, Finance...) in order to build and maintain a scalable architecture to store and process massive volumes of data. You’re intimately familiar with the technical side of business intelligence work, but at the same time are able to think on a company-wide, strategic level. No legacy systems or ancient database products here: we’re working with the latest (mobile) technologies such as AWS (S3 and Redshift), . And of course, you’ll have full say over the tools you want the company to use. letgo’s goal is to become the number 1 mobile classifieds company in the world, and your job is to make sure we’re making the smartest choices we can, backed by data at all times.  

We’ve built a company for people who want to do impactful work, surrounded by great people. We have a well-defined, mature culture — and we’re always making it better.

 Your challenge:

  • Design and implement new features in our existing codebase

  • Improve the system performance and scalability

  • Support the above with test. Testing is included in our definition of done

  • Deliver value to our users. Deploy is included in our definition of done too

 To get there, you'll need:

  • 5+ years in a similar role, preferably at an internet/mobile company

  • Experience with working both with technical and analytical profiles

  • Degree ideally in a quantitative field such as Mathematics or Computer Science

  • Expert level knowledge of SQL, Data Modelling, Python and AWS (S3 and Redshift)

  • Big data technologies: Kafka / Kinesis / RabbitMQ + Spark / Storm + Cassandra / HBase

  • Extremely organized with the ability to work on and manage multiple projects within tight timeline

  • Strong attention to detail

  • The ability to data mine across a large and varied business area or key priority for the company

  • Fluent in English

  • Very strong communicator, in writing and verbally (Spanish is a plus)

  • Experience with Actor Paradigm (Akka) (preferred)

  • Experience with Amazon Web Services (preferred)

  • We are interested in technologies like Spark and Kafka. Experience will be appreciated (preferred)

  • Interest in functional programming (preferred)
  • Mid-Senior Level

 letgo perks:

  • 100% covered medical, vision, and dental care premiums for you and your family

  • Competitive salary and stock options

  • Beautiful, new office in the heart of Soho and along the beach in Barcelona

  • Potential opportunities to travel to - and work in - both of our offices

  • Robust relocation package

  • Massage therapy (Barcelona office)

  • Fully stocked kitchens

  • Team-building activities

  • Language and other courses

letgo is proud to be an Equal Opportunity and Affirmative Action employer. Ensuring a diverse and inclusive workplace where we learn from each other is core to letgo's values. We do not discriminate based upon race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender, gender identity, gender expression, transgender status, sexual stereotypes, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics.


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

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