payabl. is developing and supporting payment gateway-related products ensuring stable payment processing for clients and partners. The Senior QA Engineer role focuses on the Acquiring domain, where you'll work on payment gateway projects and shape quality assurance processes. You'll be responsible for integration testing, API testing, and establishing QA best practices. The position offers professional growth opportunities in a multicultural environment, working on pioneering fintech projects with educational support. The role involves a comprehensive hiring process including technical assignments and live coding challenges.