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Posted Sep 1Austria
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Data Engineer

MiddleOn-site (Austria)Salary undisclosed
Job Description
 
You are comfortable working with Python, SQL and AWS, understand modern data architecture patterns, and care about data quality, performance, and maintainability.]]>
  • Design, build and maintain scalable ELT pipelines.
  • Implement and operate data workflows using AWS (Lambda, Step Functions, S3, Batch, etc.).
  • Contribute to the evolution of our Data Platform architecture (Medallion architecture).
  • Ensure data quality, consistency, and reliability across pipelines.
  • Optimize data transformations for performance and cost efficiency.
  • Collaborate with Backend and Frontend Engineers and Product to define data requirements.
  • Monitor pipelines, troubleshoot issues and improve observability.
  • Document data models, transformations and architecture decisions.
  • ]]>
    • Strong Python skills for data processing (ideally familiar with Polars or PySpark)..
    • Experience building ETL/ELT pipelines in production environments.
    • Solid experience with Cloud services - ideally AWS.
    • Understanding of Medallion Architecture.
    • Strong SQL skills and experience with dimensional data modeling.
    • Experience working with structured and semi-structured data (JSON, CSV, Parquet, APIs).
    • Understanding of data validation and data quality practices.
    • Experience with Git and CI/CD.
     

    Nice to have

    • Experience with columnar databases (e.g. ClickHouse, Redshift, BigQuery).
    • Familiarity with infrastructure-as-code (e.g. Terraform).
    • Experience with Docker.
    ]]>
  • Being part of a highly motivated international team.
  • High ownership and responsibility for your domain.
  • A modern data stack and room to shape architecture decisions.
  • A workplace in the heart of Vienna or remote options with quarterly office weeks in Vienna Helu.io.
  • ]]>
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