.
ETL Manual Tester
  • Poznań
ETL Manual Tester
Poznań, Poznań, Greater Poland Voivodeship, Polska
Sii Sp. z o.o.
5. 9. 2025
Informacje o stanowisku

technologies-expected :


  • SQL

technologies-optional :


  • Microsoft Azure
  • AWS
  • Google Cloud Platform
  • Jira
  • Confluence
  • TestRail

about-project :


  • Join one of the fastest-growing IT and engineering services companies in Europe! At Sii, we work with top-tier clients across various industries, delivering cutting-edge projects with passion and integrity. We’re currently looking for an ETL Manual Tester to support our team in ensuring data quality and reliability across modern data platforms.
  • You can work mostly remotely, but if you ever feel like grabbing a coffee with your team or enjoying a change of scenery, our modern office in Wrocław is always open for you.
  • If you have an eye for detail and a passion for improving data processes, we’d love to hear from you. Apply now and become part of the Sii family!

responsibilities :


  • Perform manual testing of ETL processes, ensuring data integrity, consistency, and completeness
  • Design, execute, and maintain test cases and test scenarios based on business and technical requirements
  • Validate source-to-target data mappings and transformations
  • Collaborate with developers, analysts, and other testers to investigate issues and clarify requirements
  • Identify and document defects, and support teams in root cause analysis
  • Participate in regression, integration, and system testing phases
  • Contribute to test planning and estimation activities

requirements-expected :


  • At least 5 years of professional experience in manual software testing, ideally in data-focused or ETL environments
  • Strong motivation to continue developing within the manual testing path
  • Solid understanding of ETL processes, data pipelines, and data validation techniques
  • Proficiency in writing and executing SQL queries to verify data accuracy and transformations
  • Familiarity with test design techniques, defect tracking tools, and test documentation standards
  • Strong analytical thinking and a keen eye for detail
  • Good English skills, both written and spoken
  • Fluent Polish required
  • Residing in Poland required

offered :


  • Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
  • Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
  • We share the profit with Workers - over PLN 60M has already been allocated for this aim since 2022
  • Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
  • Comfortable workplace – class A offices or remote work
  • Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
  • PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
  • Investment in your growth – meetups, webinars, training platform and technology blog – you choose
  • Fantastic atmosphere created by all Sii Power People

  • Praca Poznań
  • Tester Poznań
  • Poznań - Oferty pracy w okolicznych lokalizacjach


    105 139
    18 619