Senior QA Engineer (Data / Python)

The Senior QA Engineer (Data / Python) will play a key role in ensuring the quality, reliability, and consistency of data-driven solutions. Working closely with data engineers, backend developers, and CRM teams, this role focuses on validating data pipelines, APIs, and analytical platforms in a cloud-based environment.

Required Skills & Qualifications
 

4–6+ years of experience in Quality Assurance / Quality Control.

Strong understanding of data structures, SQL, and database concepts

Hands-on experience with Data Projects testing - testing data pipelines (ETL/ELT), data warehouses, datalakes houses or analytical solutions.

Experience validating APIs, microservices, and backend workflows.

Proficiency in writing test cases, test plans, and quality documentation.

Strong analytical mindset and attention to detail.

Experience working in Agile/Scrum environments.

Upper-Intermediate or higher English.
 

Project Tech Stack/ Skills needed:
 

RDBMS knowledge

AWS knowledge

Jira / Zephyr / Confluence

Responsibilities:

Data Mapping validation

Functional Testing

Non-functional Testing (Performance)

API testing

SQL queries creation (analyses, validation, troubleshooting)

AWS – usage of S3 buckets, Athena, CloudWatch, Spark, Glue, Airflow for testing

Defect Triage and collaboration with CRM team

Work with Jira / Zephyr / Confluence

Prod Support Defects management – opening defects, validating fixes etc.

In return we offer:

• The friendliest community of like-minded IT-people
• Open knowledge-sharing environment – exclusive access to a rich pool of colleagues willing to share their endless insights into the broadest variety of modern technologies
• Mobilunity Medical Insurance program designed to attend our teams’ needs
• Paid vacations and sick leaves, including 5 paid days per year that don’t require a sick note
• Perfect office location in the city-center (900m from Lukyanivska metro station with a green and spacious neighborhood) or remote mode engagement: you can choose a convenient one for you, with a possibility to fit together both
• No open-spaces setup – separate rooms for every team’s comfort and multiple lounge and gaming zones
• English classes in 1-to-1 & group modes with elements of gamification
• Neverending fun: sports events, tournaments, music band, multiple affinity groups

Come on board, and let’s grow together!