Data Engineer (m/f/x)

Berlin, Germany | Research & Development | Full-time


We are looking for an experienced Data Engineer to join our team in Berlin. You will get the opportunity to work with very talented players in the industry and on innovative and ambitious artificial intelligence projects. We value diverse perspectives and encourage everyone to bring new ideas! 



SO1 is the leading artificial intelligence for retail.

We are building a revolutionary AI promotion platform based on machine learning and seamless retail integration. The SO1 Engine learns autonomously about individual consumers’ preferences and their willingness-to-pay, providing real-time targeting across various media channels in the form of individual promotion feeds. Working with leading retailers in Europe and North America, SO1 has proven its superior ability to serve up the right offers to consumers while at the same time maximizing financial impact for retailers and globally recognized brands.

SO1 has been backed by high-profile investors with 8-figure investments and continues to focus on building the best AI for retail.


As Data Engineer at SO1, you will work at the intersection of software engineering and data science. You'll help to scale our data stores, data pipelines and ETLs handling tens of terabytes of data from several well-known offline retailer chains.

  • You will work with data scientists and software engineers, to build and integrate robust and scalable machine learning models
  • You will design and implement efficient data processing workflows
  • You will continue to develop our custom data processing pipeline and continuously search for ways to improve our technology stack along our increasing scale
  • You will measure, analyze and optimize the performance of our data processing pipelines


Must have

  • You program fluently in Python
  • You have good knowledge of SQL
  • You have experience in data modeling for analytical workloads and data warehousing 
  • You have a good understanding of efficient algorithms and you know how to analyze them
  • You are curious about how databases and other data processing tools work internally
  • You are familiar with the Linux ecosystem and working with command line tools
  • You are familiar with git
  • You strive to write testable and maintainable code
  • You communicate clearly and openly and work well as part of a team

Highly desirable

  • You have experience with Kubernetes
  • You have machine learning  related experience
  • You have knowledge of Scala
  • You have knowledge of columnar databases
  • You have knowledge of technologies like Apache Spark and/or Hive


We offer our employees unique learning opportunities and the chance to take on important projects from day one together with:

  • A revolutionary platform that meets a strong customer need,
  • A highly energetic environment and smart colleagues who will help you accelerate your professional growth,
  • Freedom to shape your role and significantly impact the company’s direction and future,
  • Performance-based compensation,
  • Above market salary and vacation days,
  • Flexible working hours and vacation policy,
  • Possible stock options after you have proven your impact,
  • Lunch allowance through LunchIt app,
  • A job in one of the hottest cities in the world and amenities like free drinks & snacks, team events, and an office with a huge rooftop terrace in the middle of Prenzlauer Berg.



We are a diverse team of about 30 software engineers, DevOps, machine learners, data scientists, and business people. All united in their hunger to achieve something great and change the promotion game for good. We operate in small teams, with flat hierarchies. We love cooking together in the kitchen and having fun with barbeques on our rooftop terrace. At SO1, we pride ourselves on our diverse workforce and inclusive community feel. As an equal-opportunity employer, we welcome applications from candidates regardless of race, religion, gender identity, sexual orientation, age, disability or background.


We are very much looking forward to your application. Please send your CV in pdf format including the earliest possible entry to the SO1 recruitment team.




By submitting your resumé and application information, you authorize SO1 to transmit and store your information in the SO1 recruitment database, and to circulate that information as necessary for the purpose of evaluating your qualifications for this or other job vacancies within SO1.