Senior QA Engineer We are seeking a bilingual QA Lead with proven leadership, discipline, and experience in payment systems or financial technology. This is a hands-on leadership role focused on execution, discipline, and excellence. You will lead and grow our QA function, define best practices, and instill engineering accountability across teams. Key Responsibilities: - Design and implement core platform services including card issuing, transaction processing, APIs, and integrations. - Build and manage a team of QA engineers focused on manual and automated testing across services. - Define and enforce testing standards across all squads, including automation, regression coverage, bug triage, and release gates. - Implement automation frameworks for API and UI testing using modern tools such as Cypress, Selenium, and Playwright. - Enforce quality gates in CI/CD workflows and ensure release readiness with zero tolerance for shortcuts. - Own quality KPIs, including defect escape rate, test coverage, and cycle time, and present them regularly to leadership. - Run structured post-mortems for any production failures - QA owns prevention, not just detection. - Be a visible quality champion across the company, pushing back when needed, and coaching where needed. Requirements: - Fluent in either Spanish or Portuguese and English (verbal and written). - 7+ years in QA, with at least 3 years in a leadership/management role. - Experience working on payment platforms or regulated fintech systems is highly preferred. - Deep understanding of QA disciplines across API, UI, backend, and integration testing. - Strong hands-on experience with test automation frameworks. - Experience implementing test coverage in CI/CD pipelines. - Excellent communicator able to hold engineers accountable without conflict and clearly explain quality issues to leadership. - Highly organized and disciplined, bringing structure, following process, and improving operational excellence.