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SQUARE ONE RESOURCES sp. z o.o.

ETL Data Engineering Practitioner

SQUARE ONE RESOURCES sp. z o.o. Show all offers
140 - 165 PLN
B2B
Senior
Expert
Warszawa
Expires Oct 1, 2026
18 days ago

In short

ETL Data Engineering Practitioner in Warszawa. Responsibilities: designing data solutions, ETL/ELT pipelines, AWS, Big Data tech, Data Warehouses/Lakes. Requirements: 5+ yrs exp, AWS, Python, SQL, ETL/ELT, Big Data, Data Warehousing, database optimization.

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About the project

This is how we organize our work

This is how we work

Your responsibilities

  • Design and implement scalable data engineering solutions and data architectures.
  • Develop and optimize advanced ETL/ELT pipelines and data processing workflows.
  • Work with large-scale data processing using AWS and Big Data technologies.
  • Design and maintain Data Warehouses, Data Lakes and data processing frameworks.
  • Troubleshoot complex performance and scalability issues across data platforms.
  • Work with relational databases and optimize database performance.
  • Ensure data platforms are scalable, secure, resilient and reliable.
  • Contribute to data architecture standards, best practices and technical decisions.
  • Collaborate with other technical teams and business stakeholders to understand requirements and translate them into effective data solutions.
  • Contribute to data governance and the continuous improvement of the organization's data infrastructure.
  • Support and mentor less experienced Data Engineers and contribute to technical knowledge sharing.
  • Participate in architectural discussions and help shape the long-term direction of the data platform.

Our requirements

  • 5+ years of professional experience in Data Engineering.
  • Strong hands-on experience with AWS and cloud-based data platforms.
  • Excellent knowledge of Python and SQL.
  • Solid experience with ETL/ELT processes and data integration.
  • Experience with Big Data technologies and distributed systems.
  • Experience designing scalable Data Warehouses and/or Data Lakes.
  • Strong database knowledge and experience with database performance optimization.
  • Experience designing and implementing complex data engineering solutions.
  • Understanding of data architecture, scalability, resilience and security.
  • Ability to troubleshoot complex technical and performance-related issues.
  • Experience taking technical ownership and influencing architectural decisions.
  • Good communication skills and the ability to collaborate with both technical and business stakeholders.

Optional

  • Experience mentoring other engineers or acting as a technical lead.
  • Experience with Scrum Master responsibilities.
Published 2026-09-01
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