Senior Manual QA Engineer (iGaming)

TL;DR

Senior Manual QA Engineer (iGaming): Performing end-to-end manual testing of core platform features and APIs with an accent on backend testing, database validation, and complex troubleshooting. Focus on evolving test strategies, mentoring team members, and collaborating with cross-functional teams to ensure high product quality.

Location: Must be based in Warsaw, Poland (Onsite)

Company

A global tech company creating end-to-end products for the Fintech, iGaming, and Marketing industries with a team of 1,300 professionals.

What you will do

• Perform end-to-end manual testing of core platform features, APIs, and integrations.
• Investigate and localize issues using devtools, logs, and direct database queries.
• Manage the full defect lifecycle within the bug-tracking system.
• Collaborate with cross-functional teams to identify risks and improve quality at early stages.
• Mentor junior and middle QA engineers and contribute to QA process improvements.
• Support the release process and maintain comprehensive test documentation.

Requirements

• 4+ years of experience in software testing.
• Mandatory experience in backend testing and client-server architecture.
• Strong proficiency in API testing (REST, JSON) using Postman or Swagger.
• Solid SQL knowledge including complex queries and joins.
• Experience in defining test scope and maintaining test documentation.
• English proficiency: Intermediate+ / Upper-Intermediate level required.

Nice to have

• Experience in test automation with TypeScript.
• Experience in mobile testing (iOS/Android).
• Familiarity with CI/CD pipelines.
• Experience with Allure TestOps.

Culture & Benefits

• Comprehensive medical insurance for you and your partner.
• 20 working days of paid annual vacation plus paid sick leave.
• Partial compensation for language courses.
• Sports package and office snacks.
• Exciting corporate events and international team-building activities.