ETL Developer (Mid or Senior)

I’m interested


Krakow, Poland



Seniority level


Workplace policy


Job description

Our data engineering teams together with data scientists are working on advanced systems capable of collecting and processing huge amounts of data, finding patterns, reasoning and acting faster than humans by using machine learning algorithms that can incrementally get smarter each time new data enters the system. We are a group of people passionate about the science 'behind the bet', always outcome-oriented and focused on solving real-world problems based on data and advanced analytics.


Your role in the team


We are building a world-class Big Data platform which will give us power to process streams of data and enable machine learning and advanced analytics capabilities. Everything cloud-based for scalability and speed to market. You will be working with large volumes of data with both batch and streaming processing, and integrating our AWS based platform with a range of internal and external systems. You will have exposure to different phases of development cycle, from design, through coding and testing, up to release into production.


Skills needed 


  • You’re a strong developer, and you’ve used SQL to handle large data sets and complex data transformations (ANSI is a great fit for this role)
  • You have hands on experience with AWS
  • You have hands on experience with Python, including an object oriented approach to coding
  • You have knowledge and experience with Apache Spark.


Nice to have:


  • Experience with data pipelines (e.g., Airflow) and streaming processing (e.g., Kafka, Spark Streaming)


What we offer 

  • Long term flexible working practices - Our employees have the opportunity to work from home with some office time built in to ensure we get some face to face collaborative team time.
  • Possibility to work with latest Cloud technologies and build comprehensive Data Platform from scratch.
  • Growth within technical area and leadership – it is your choice where you want to go.
  • Flexible employment (B2B or Employment Contract to choose from).
  • Creative rights scheme.
  • IT conferences, internal trainings, lunch and learn sessions and an individual training budget.