Senior QA Engineer
Location: Warsaw (On-site / Hybrid)
Company: GB2B
Industry: iGaming / Platform Development
Reports to: Technical Project Manager
GB2B builds and operates iGaming platforms in regulated markets, where quality, stability, and compliance are non-negotiable.
We’re looking for a Senior QA Engineer to ensure features are validated, compliant, and production-ready across backend, frontend, and UX deliverables.
Responsibilities
- Perform manual, regression, and validation testing across frontend, backend, and platform features
- Validate functionality against business, technical, and regulatory requirements
- Execute compliance and regulated-market test scenarios
- Collaborate with backend, frontend, UX, and DevOps teams to ensure quality by design
- Review requirements, user stories, and acceptance criteria for testability and clarity
- Identify defects, risks, and edge cases early in the delivery lifecycle
- Support release readiness and production validation activities
Requirements
- Proven experience as a Senior QA Engineer (manual-focused or hybrid)
- Strong understanding of backend APIs, data flows, and frontend behavior
- Experience testing complex platforms, admin panels, or data-heavy systems
- Familiarity with regulated environments (iGaming, fintech, payments, etc.)
- Understanding of regression testing, validation flows, and release cycles
- High attention to detail and a strong sense of ownership
- Clear communication skills and ability to work cross-functionally
Why Join GB2B
- Work on regulated, mission-critical platforms
- Be involved early, not just at the end
- Strong collaboration with senior engineering and delivery leadership
- Competitive compensation
