technologies-expected :

technologies-optional :

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