Senior Mobile QA Engineer

About the role

We are looking for a Senior Mobile QA Engineer to drive automation quality for a global QSR brand’s consumer mobile applications across iOS and Android. You will build and maintain automated test suites using Detox and Jest, validate payment and authentication workflows, execute functional and regression testing on real devices via BrowserStack, and integrate quality gates into CI/CD pipelines through GitHub Actions and EAS. The role spans manual and automated testing in an Agile environment with close collaboration across engineering, product, and design teams.

What you will do

• Build and maintain end-to-end automation frameworks;
• Execute functional, regression, and integration testing;
• Validate payment and authentication workflows;
• Develop and execute test plans and test cases for React Native mobile applications across iOS and Android;
• Perform manual and automated testing to validate functionality, UI/UX, performance, and platform compatibility;
• Build and maintain automated test suites using Detox for end-to-end flows, Jest and React Native Testing Library for unit and component coverage, and real-device validation via BrowserStack or Sauce Labs;
• Collaborate with cross-functional teams to define test requirements and ensure testability and accessibility of features including ADA compliance;
• Analyze test results, identify root causes of failures, and work with developers to drive resolution;
• Identify, document, and track bugs and issues in Azure DevOps;
• Monitor app performance and user feedback signals via Quantum Metric, Sentry, and Firebase;
• Support CI/CD quality gates including automated test runs, build validation, and beta distribution via GitHub Actions and EAS;
• Write and maintain test documentation including test plans, test cases, and coverage maps;
• Participate in Agile ceremonies including standups, sprint planning, refinement, and retrospectives;
• Stay current with the React Native testing ecosystem and contribute to migration to the React Native New Architecture.

Must haves

• 4+ years of professional mobile QA experience;
• 1+ year of React Native experience;
• Strong understanding of mobile platforms (iOS and Android);
• Hands-on experience with Detox for end-to-end testing;
• Experience with Jest and React Native Testing Library or equivalent;
• Familiarity with CI/CD tools such as GitHub Actions or CircleCI;
• Experience with BrowserStack or Sauce Labs;
• Knowledge of Firebase and Sentry;
• Basic understanding of JavaScript/TypeScript and React Native architecture;
• API testing experience;
• Experience validating mobile payment flows;
• Clear communication and collaboration skills;
• Upper-intermediate English level.

Nice to haves

• Experience with payment integrations such as Adyen, Apple Pay, and Google Pay;
• Familiarity with feature flag systems such as LaunchDarkly;
• Exposure to mobile analytics platforms such as Adobe Experience Platform and Quantum Metric;
• ADA accessibility testing and WCAG standards knowledge;
• Performance testing including render budgets and memory profiling on mobile;
• Internationalization (i18n) and multi-language app testing;
• Experience with App Store and Google Play submission and validation processes.