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Manual QA Engineer For Mobile App

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Zoolatech

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Job Description:

A large-scale consumer mobile application with millions of active users required a robust testing strategy to ensure stability, performance, and seamless user experience. Testing efforts focused on both iOS and Android platforms, covering functional validation, UI/UX consistency, geolocation features, and real-time interactions.

Job Responsibility:

  • Own 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
  • API validation for mobile backends (manual REST verification, contracts, edge cases)
  • Data/analytics validation (events, funnels, attribution) against tracking specs
  • 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)

Requirements:

  • 2+ 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
  • Tooling: Xcode (logs, profiling), Android Studio/ADB, Charles Proxy or Fiddler, Jira
  • Manual REST API testing (Postman/Insomnia) and solid grasp of client–server interactions (headers, auth, caching)
  • Excellent written/spoken English, crisp test docs and defect reports
  • 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
What we offer:
  • Paid Vacation
  • Sick Days
  • Floating Holidays
  • Sport/Insurance Compensation
  • English Classes
  • Charity
  • Training Compensation

Additional Information:

Job Posted:
December 14, 2025

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