Senior QA Engineer

Warszawa, Poland 252.08 - 308.10 USD Posted on February 24, 2026

Job Description

Work model: elastic hybrid from Łódź, Warsaw, Gdańsk or Gdynia (at least 3 days per week from the office)

 

Why choose this offer?

You can expect a flexible work organization

The international work environment will give you the opportunity to interact with the English language on a daily basis

Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit)

The Jit community will bring you a nice time during regular integration meetings

 

Project

You will be involved in a financial project focused on data integration and migration, supporting key reporting and business processes. The role includes ensuring high data quality across ETL processes by developing and maintaining automated tests, validating data mappings and business rules using SQL, and performing manual data testing when required. You will collaborate closely with developers and business stakeholders, supporting regression testing and releases in an Agile environment.

 

Responsibilities you'll have

Developing and maintaining automated tests for ETL processes and data migrations

Validating data mappings, transformations, and business rules using SQL

Performing manual data testing and exploratory testing when needed

Understanding mapping documents, data models, and integration requirements

Collaborating with ETL developers and stakeholders on projects using IBM DataStage, Informatica, or similar tools

Supporting regression testing and release activities

Maintaining test documentation and defect reports

Working in a Scrum team

 

Expected competences and knowledge

Minimum 5 years of professional experience in software quality assurance

Experience in automated QA for ETL and data projects

Strong SQL/PL-SQL skills and solid knowledge of relational databases

Good understanding of ETL, ODS, and data warehousing concepts

Manual testing experience with strong attention to data quality

Familiarity with Git-based tools (e.g., Bitbucket)

Experience working in Agile (Scrum/SAFe) environments

Fluent English (written and spoken)

 

Nice to have

Experience working directly with IBM DataStage, Informatica or similar ETL/Data Integration tool

 

Technologies you'll work with

ETL

SQL

Git-based

IBM DataStage

Informatica

About Jit Team

We provide complete software development teams, who will take complex care of your software. We are experienced in building teams uniquely suited to the specific needs of our clients. One team - a range of skills, diverse personalities, and various approaches.

Industry: IT Services and IT Consulting