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Senior Data Engineer in Madrid


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Job Description

We are looking for a talented Data Engineer to help us change the world of digital advertising together.


Seedtag is the leading Contextual Advertising Platform and we believe in high-quality advertising content. We allow brands to take advantage of visual media in the most responsive, bespoke, and non-intrusive way. Our proprietary technology uses the power of Machine Learning to provide human-like understanding of content, the highest level of brand safety in the industry and unmatched, cookieless targeting capabilities.

Founded by two ex-Googlers in 2014, today we proudly count over 200 employees in 10 countries. At seedtag we are committed to maintaining a culture where everyone can thrive and find meaning in their work.

Our team faces massive scalability challenges to be able to process millions of requests per minute with very strict timing requirements. Through the use of machine learning algorithms we analyze the content of every page and achieve human-like content understanding to provide the best possible ad contextualization in the industry.

As part of our engineering team you will join a tightly-knit group of extremely talented software engineers, data scientists and product owners who enjoy solving hard problems and work as a team to innovate. We are committed to maintaining a culture where everyone can thrive and find meaning in their work.


Your key responsibilities will be:

  • You will be a key player in the development of a reliable data architecture for ingestion, processing, and surfacing of data for large-scale applications
  • You will cooperate with other teams to unify data sources, as well as recommend and implement ways to improve data reliability, quality and integrity.
  • You will start by processing data from different sources using tools such as SQL, MongoDB, and Apache Beam, and will be exploring and proposing new methods and tools to acquire new data.
  • You will work with data science and data analytics teams, to help them improve their processes by building new tools and implementing best practices
  • You will ensure continuous improvement in delivery, applying engineering best practices to development, monitoring, and data quality of the data pipelines.

We're looking for someone who:

  • You have at least 2-4 years of solid experience in Data Engineering
  • You have a degree in Computer Science, Engineering, Statistics, Mathematics, Physics or another degree with a strong quantitative component.
  • You are comfortable with object-oriented languages, such as Python or Scala, and you are fluent in working with a Linux terminal and writing basic bash scripts.
  • You have ample experience with Data Engineering tools such as Apache Beam, Spark, Flink or Kafka.
  • You have experience orchestrating ETL processes using systems such as Apache Airflow, and managing databases like SQL, Hive or MongoDB.
  • You are a proactive person who likes the dynamic startup work culture


  • A dynamic and international work environment in a young advertising technology company
  • Access to a flexible benefits plan (plan de retribuciĆ³n flexible) with restaurant, transportation and kindergarten tickets and discounts on medical insurance
  • A great work location in the heart of Madrid (Gran Via) with food, snacks, great coffee
  • The option to work from home when you need to and real flexible working hours
  • The option to follow company-paid English and/or Spanish courses weekly
  • Access to learning opportunities and budget, and participation in many team activities with your colleagues!

Are you ready to join the Seedtag adventure? Then send us your CV!


About Seedtag

  • Marketing

  • Madrid, Spain

  • 50-200

  • 2014


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