Sr. QA Engineer, Software - UI
Position Summary
We are hiring a Senior QA Engineer to own the quality of our web UI and native and hybrid mobile applications (iOS and Android). You will design the test strategy, build & maintain reliable automation, lead and mentor other QA engineers while working closely with teams distributed across the world.
Responsibilities
Define and drive the test strategy, plans and cases for web UI, native/hybrid mobile (iOS/Android) applications, translating use cases and acceptance criteria into functional, regression, integration and exploratory tests
Design, build and maintain reusable, reliable and scalable test automation frameworks for UI, mobile and API layers, integrated into CI/CD pipelines for fast release feedback; setup & manage real IoT devices for automation test suite
Ensure the best possible quality, performance, UX, accessibility and responsiveness across devices, OS versions, screen sizes and browsers, including consistent behavior of hybrid apps on iOS and Android
Identify performance bottlenecks and defect trends through stress testing of the applications for performance and root-cause analysis, partner with developers on fixes, and research and adopt new testing tools and practices
MUST HAVE
Excellent interpersonal and communication skills in English, with the ability to interact with diverse groups of people
Strong leadership and organizational skills: the ability to influence, motivate, coach and mentor other engineers, prioritize multiple tasks with excellent attention to detail, and work independently or collaboratively, taking initiative and staying productive under pressure
Bachelor's degree in Computer Science
5+ years of experience in software QA, including the following:




Test automation for web UI and native and hybrid mobile (iOS and Android) applications using tools such as Playwright or Selenium
Hands-on automation development in TypeScript/JavaScript (React-based UI applications)
Testing REST-based services and APIs using tools such as Postman or REST Assured
Hybrid and native mobile app testing (webview and native context switching, native plugin and bridge behavior, cross-platform consistency) across real devices, simulators/emulators and multiple OS versions, including app store release and beta distribution processes
Creating test plans, test cases and defect reports, and working in Agile/Scrum teams
Integrating automated tests into CI/CD pipelines (for example Jenkins or GitHub Actions)
Strong Pluses
AI Tooling to perform entire test life cycle of Quality Assurance
Master's degree in Computer Science or equivalent
Experience testing UI and mobile applications for large-scale distributed systems, and understanding the architectural patterns behind them
Location
Mexico City, Mexico
Hybrid Schedule: In office Monday–Thursday; Remote Friday
What We Offer
The opportunity to work on impactful products in a collaborative engineering environment.
Challenges that encourage technical growth, innovation, and ownership.
A team-oriented culture focused on quality, continuous learning, and shared success.
Competitive compensation and a comprehensive benefits package, where applicable.
Equal Opportunity
We are committed to creating an inclusive and welcoming workplace. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, disability, veteran status, genetic information, or any other legally protected characteristic.

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