Quality Assurance Engineer

I validate end-to-end payment flows for PIX, credit card, and debit card transactions, helping protect financial integrity and reduce operational risk for end users. I execute automated and manual regression suites during release cycles to support reliable and timely delivery of new features.

I create QA documentation and strategic checklists that standardize testing processes and improve the team’s technical maturity. I work directly with engineering to promote a Quality Assistance culture and prevent production defects.

I built automation frameworks using Selenium, JUnit, and Cypress to increase automated test coverage and stabilize platform releases. I implemented API and integration tests to validate microservice communication and data integrity in complex environments.

I led proactive triage of critical defects with developers, minimizing business impact and supporting customer satisfaction. I also mentored new QA hires, participated in Agile ceremonies, and helped define acceptance criteria aligned with business goals.

I validated cross-browser and cross-device compatibility to help ensure a consistent user experience across supported platforms. I performed QA activities within Agile delivery teams and connected business requirements with test execution.

I managed the defect lifecycle using JIRA and TestRail, improving visibility of quality status for stakeholders. I collaborated with development and business teams to support issue resolution and release readiness.

I performed functional and usability testing for high-traffic interactive applications, with attention to user retention, engagement, and overall experience. I assessed feature behavior and stability in dynamic application scenarios.

I wrote automation scripts focused on reducing critical failures and collaborated with cross-functional squads to turn design concepts into robust, tested features.

I optimized backend processes using PHP and MySQL, identifying logic bottlenecks and supporting data-layer integrity. I investigated failures systematically and contributed to improvements in critical application features.

I participated in technical discussions focused on continuous improvement of the QA team’s internal processes. This role strengthened my foundation in backend quality, troubleshooting, and application performance.

Bachelor of Science studies in Computer Engineering.

Technical program in Information Technology.

Technology immersive program.