Junior Data Scientist

Mobile Advertising, Marketing, Performance Campaigns, Branding Campaigns, Real Programmatic Biding.

Job details

  • Full-time
  • map markerBarcelona, ES
  • cardRequires Work Permit
    Requires that you're a citizen or have a valid work permit / visa sponsorship to work in the country in which this position is based.
  • routeJunior
  • routeSpanish
    Preferred spoken language

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At Smadex we build awesome mobile advertising technology for marketers around the World. Great technology then enables marketers to achieve their customer and financial goals.

We are the leader in the mobile advertising evolution, with a Real-Time Bidding (RTB) programmatic platform built on powerful machine learning technology.

If you want to enjoy beautiful Barcelona and be part of one of the best startups in the European scene, competing with Google and Facebook in their own advertising expertise, then this is the place for you!

To help us maintain our continued growth and our strong position in the industry, we are searching for an ambitious Junior Data Scientist to help us bring Machine Learning and predictive algorithms into production. If you’re seriously into data, then there’s no hottest topic in the market than what you will learn with us.

As a Data Scientist at Smadex you will:

  • Provide support to our Data Science team in the design, implementation, training, evaluation and optimization of novel predictive algorithms based on state-of-art machine learning techniques
  • Define and perform experiments leveraging relevant large-scale datasets to identify and tune viable proof-of-concept approaches
  • Transfer and optimize proven approaches to run in the cloud

Main requirements

  • At least 1 year of relevant experience
  • You are an A player with a sense of accountability
  • Good communication skills in English both written and spoken
  • Self­ motivated with the ability to work independently
  • Detail oriented, well organized and able to multi­task in a result-oriented business environment

Nice to have

  • You’re interested in learning and sharing knowledge with other team members
  • You’re a quick learner and self­ reliant
  • You’re familiar with AWS
  • You’ve worked with systems/tools such as Python, R, MySQL, etc.
  • You’ve worked with big data frameworks such as Hadoop, Spark, MapReduce, Pig, Hive, HBase, HDFS, Yarn, etc.


  • Opportunity to be part of an agile startup with a strong focus on innovation and technology
  • Flexible working hours
  • Exceptional work environment with friendly peeps
  • Continuous development of your knowledge about the industry. The kind of knowledge that Google and Facebook are constantly looking for!
  • Opportunity to have a real impact in one of the hottest startups in Barcelona and Europe
  • Company support to reach personal and professional growth. We’ll guide you in the right direction
  • Fully­ stocked fridge with fruit, snacks, biscuits, beer and soft drinks
  • Beautiful office space with a big terrace and Friday BBQs
  • Team building events
  • Opportunity to lead tech partners (Twitter, Google, AOL, etc.) in the digital marketing world

Apply now

Sign up to apply

Or sign up to refer and earn a reward of €300