Senior Manual Qa Engineer For Mobile App Mexico

OverviewSenior Manual QA Engineer for Mobile App – a large-scale consumer mobile application with millions of active users requiring a robust testing strategy to ensure stability, performance, and seamless user experience.

Testing efforts focus on both iOS and Android platforms, covering functional validation, UI / UX consistency, geolocation features, and real-time interactions.ResponsibilitiesOwn end-to-end QA within a sprint : create test strategies / plans, define scope & priority, estimate effort, track progress, unblock issues, and ensure on-time, high-quality releases.Plan and execute test cycles across feature, integration, regression, and release certification (TestFlight / Internal App Sharing / production).

Author clear, reproducible defects with videos, logs, and device metadata; drive root cause and follow-through to resolution.Partner with developers & PMs to clarify requirements / acceptance criteria, risks, and success metrics.Network-aware testing (airplane mode, 2G / 3G throttling, packet loss) using proxies and emulator / simulator tools.Release readiness : build verification, smoke suites, sanity checks; participate in bug triage, go / no-go, and post-mortems.Automation-aware : convert high-priority manual scenarios into actionable automation tickets; collaborate with SDETs on monthly audits and coverage plans.Lead release-team testathons for major feature launches : plan charters, coordinate cross-functional participants, track findings, and publish results.Work closely with the automation team on weekly release regression cycles : align scope, review flaky tests, and prioritize automation candidates from recent escapes.Hands-on memory profiling using Xcode Instruments and Android Studio Profiler; detect leaks / retention, analyze heap / allocations, and file actionable performance bugs with traces.Be metrics-oriented and deliver weekly Quality Release Reports to the Release Manager (coverage & pass rate, defect density / age / SLA, crash-free users, ANR rate, cold-start time, flakiness, known risks).

Testing on real devices and emulators / simulators; coverage across OS versions, screen sizes, locales, accessibility setups.Manual REST API testing (Postman / Insomnia) and solid grasp of client–server interactions (headers, auth, caching).

Accessibility testing to WCAG 2.1 AA (VoiceOver / TalkBack, color / contrast, semantics).

Experience with IAP / subscriptions, push notifications, deep links, geo features.Familiarity with crash / analytics stacks (Firebase, Datadog, Amplitude, Mixpanel, Sentry, Crashlytics).

Exposure to mobile automation (XCUITest / Espresso / Maestro) and creating high-value automation backlog.Client-side performance profiling (startup time, memory, jank) and battery / network sensitivity checks.Qualifications5+ years of hands-on QA for iOS and Android consumer apps (feature, integration, regression, release testing).

Strong understanding of SDLC and mobile release trains (feature flags, build types, staged rollouts, crash & analytics tooling).

Clear, proactive communication—align with developers and product on requirements, test plans, and test strategies without supervision.Proven end-to-end ownership of sprint QA (scope / priorities, daily progress, blockers, timely sign-off).

Testing on real devices and emulators / simulators; coverage across OS versions, screen sizes, locales, accessibility setups.Excellent written / spoken English, crisp test docs and defect reports.Experience with accessibility testing to WCAG 2.1 AA standards.Experience with IAP / subscriptions, push notifications, deep links, geo features.Familiarity with crash / analytics stacks (Firebase, Datadog, Amplitude, Mixpanel, Sentry, Crashlytics).

Exposure to mobile automation (XCUITest / Espresso / Maestro) and creating high-value automation backlog.Client-side performance profiling and memory management knowledge.

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