Manual QA Engineer for Mobile App (Tinder)

Zoolatech; Polska; Remote; PLN 120,000 - 160,000; Full time

Job summary

Zoolatech is seeking an experienced QA professional to own end-to-end testing for iOS and Android consumer apps. You will drive test strategies, collaborate with developers and product managers, and oversee release readiness across TestFlight, internal sharing, and production environments.

Responsibilities include creating and executing test plans, recording defects with detailed metadata, and guiding root-cause analysis.

Qualifications

• 2+ years hands-on QA for iOS and Android consumer apps.
• Strong understanding of mobile release trains and SDLC processes.
• Excellent written and verbal English communication; proactive collaboration with developers and PMs.

Responsibilities

• Own end-to-end QA within a sprint: develop test strategies/plans, define scope and priority, estimate effort, track progress, unblock issues, and ensure on-time, high-quality releases.
• Plan and run test cycles across feature, integration, regression, and release certification (TestFlight/Internal App Sharing/production).
• Capture clear, reproducible defects with videos, logs and device metadata; drive root cause and resolution.
• Collaborate with developers & PMs to clarify requirements/acceptance criteria, risks, and success metrics.
• Perform network-aware testing (airplane mode, throttling, packet loss) with proxies and emulators.
• Lead release readiness activities: build verification, smoke/sanity checks, bug triage, go/no-go, post-mortems.
• Translate manual scenarios into automation tasks; work with SDETs on audits and coverage.
• Coordinate release-team testathons for major features; track findings and publish results.
• Partner with automation team on weekly regression cycles; review flaky tests and prioritize candidates.
• Perform memory profiling using Xcode Instruments and Android Studio Profiler; log performance bugs.
• Deliver weekly Quality Release Reports to Release Manager (coverage, defects, crash rate, SLA).

Skills

iOS/Android QA

SDLC & release trains

Clear communication

End-to-end ownership

Manual testing

Tools

Xcode

Android Studio/ADB

Charles Proxy

Fiddler

Jira

Qase

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.

Responsibilities:

• 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.
• 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).

Must-Have Qualifications:

• 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, Qase | AI-powered Test Management Software for Quality Assurance .
• 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.

Nice-to-Have:

• 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.

Engagement Model: Direct Independent Contractor (Please read carefully)

This is an independent contractor opportunity based on a direct contractual relationship between Zoolatech and the individual service provider.

To facilitate this direct partnership, we engage with professionals who are registered and operate as a sole proprietorship, private entrepreneur, or an equivalent self‑employment status in your country.

Please note, our model does not accommodate contracts through third-party intermediaries such as agencies, incubators, or umbrella companies. The essential requirement is your ability to enter into a service agreement and invoice Zoolatech directly. This is not an offer of direct employment

Please note that only candidates whose profiles closely match our requirements will be contacted.