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September 3, 2026

(Senior) Data Engineer - Freelance

Senior • Remote

268,320 - 447,200 PLN/yr

Warsaw, Poland

Project Details

  • Location: European Union
  • Contract type: Full-time, freelance B2B
  • Rate: €30–50/h, flexible depending on experience
  • Start: ASAP
  • Duration: Long-term

Requirements

Must-have:

  • 4+ years of commercial working experience as a Data Engineer
  • Deep expertise in the AWS tech stack: Glue, DMS, Redshift, and S3, proven in previous commercial projects
  • Strong proficiency in Python, Scala, and Bash
  • Experience using Scala for production data transformation and CDC, and Bash for CI/CD operations
  • Ability to navigate AWS services and manage data lifecycles beyond database administration experience
  • Understanding of building crash-resistant, idempotent pipelines and optimizing Spark jobs through partitioning, columnar formats such as Parquet, and broadcast joins
  • Attention to detail, creative problem-solving abilities, and a passion for data
  • Excellent written and spoken English, C1+

Benefits

  • 100% remote work
  • Work with an experienced development team
  • Continuous development of hard and soft skills
  • Long-term collaboration on challenging products

An inclusive environment is provided. Disability-related adaptations can be arranged during the recruitment process.

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