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Backend Data Engineer — Data Platform

Poland B2B 140.00 - 170.00 PLN / Hour · Job Posted May 03, 2026
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Job Description

We're looking for an engineer to support hands-on implementation and migration work as we evolve our data processing stack. This is a high impact and execution-focused engagement — you'll be contributing to company wide migration efforts and platform development. What You'll Work On You'll be embedded in a team in Data Infrastructure PA, contributing to hands-on engineering work. This includes large-scale pipeline migrations — validating performance and cost outcomes and helping move workloads to our evolving stack — as well as contributing to platform development across our Flink platform, Lakehouse architecture and beyond, as our priorities evolve. What We're Looking For You have solid, hands-on experience in backend engineering and are comfortable jumping into an existing platform codebase and making meaningful contributions quickly.

Job Responsibility

  • Support hands-on implementation and migration work as we evolve our data processing stack
  • Contribute to company wide migration efforts and platform development
  • Embedded in a team in Data Infrastructure PA, contributing to hands-on engineering work including large-scale pipeline migrations — validating performance and cost outcomes and helping move workloads to our evolving stack
  • Contribute to platform development across our Flink platform, Lakehouse architecture and beyond

Requirements

  • Strong Java development skills, with experience in data platform or data engineering contexts
  • Practical experience with at least one JVM-based data processing framework — Flink experience is a plus
  • Beam, Dataflow, or Spark also relevant
  • Comfortable with SQL and cloud data analytics platforms, particularly BigQuery
  • DevOps is part of your day-to-day: you work with cloud infrastructure, containerised applications, and are familiar with Kubernetes basics
  • Experience working with data engineering pipelines in Scala and/or Python
  • You write quality code and understand what it means to ship reliably in a production environment
  • You can work autonomously in an ambiguous environment and move quickly without waiting to be directed

Nice to have

  • Prior experience with large-scale pipeline migrations
  • Familiarity with cost optimisation in cloud data processing workloads

What we offer

  • Access to benefits package at attractive prices (medical care, Multisport card, life insurance, cafeteria system)
  • Long-term cooperation

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