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Mobile QA

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Mobile QA Engineer (iOS) Subscription Apps & Growth Stack

About the Company
Our client is a fast-growing mobile app portfolio company dedicated to creating products that make users lives smarter, not harder. Their portfolio spans a range of categories, and they are on a mission to scale their apps to reach millions of users worldwide. Theyre looking for a detail-oriented Mobile QA Engineer to safeguard app quality by rigorously testing subscription flows, analytics, attribution integrations, and featuresensuring every release delivers a flawless experience to end users.

About the Role
Youll own quality for a portfolio of consumer iOS apps with subscription monetization. Day-to-day, youll validate paywalls and purchase flows (StoreKit/RevenueCat), attribution/MMP plumbing (Singular), analytics/crash reporting (Firebase), and the overall UX across fast release cycles. Expect a mix of thoughtful manual testing plus targeted automation where it pays off.

What Youll Do

  • Plan, execute, and maintain test plans for iOS releases (feature, regression, exploratory, device matrix).

  • Validate subscription journeys end-to-end: paywall rendering, free trials, intro offers, upgrades/downgrades, cancellations, grace periods, receipts, entitlement state (StoreKit/RevenueCat).

  • Verify analytics & stability signals: Firebase Analytics events naming/params, Remote Config treatments, and Crashlytics crash grouping & dSYMs.

  • Test MMP integrations and postbacks (Singular), including attribution correctness, SKAdNetwork paths, and deep link journeys.

  • Partner with Growth/Product to QA experiments (remote config, A/Bs) and ensure clean data for KPI reads (install trial paid LTV).

What Youll Bring

  • 35+ years testing native mobile apps, with deep iOS expertise (Xcode, TestFlight, StoreKit sandbox).

  • Hands-on with subscription stacks: RevenueCat (or equivalent server-side receipt validation) and App Store Connect artifacts.

  • Comfort with MMPs (one or more of AppsFlyer, Adjust, Singular): understanding of attribution windows, postbacks, SKAN basics.

  • Fluency with Firebase (Analytics, Crashlytics, Remote Config) and interpreting dashboards.

  • Experience with ad networks (Admob).

Nice to Have

  • Experience testing ad monetization (rewarded/interstitial) and deep links.

  • SQL or BigQuery for sanity-checking event quality.

How Success Will Be Measured

  • Release health: crash-free sessions and ANR rates trend in the right direction; no blocker regressions post-launch.

  • Data quality: analytics and MMP events pass schema checks and reconcile across Firebase/RevenueCat/MMP.

  • Subscription funnel: defects caught before launch in trial/renewal flows; fewer payment-related support tickets.

Example Stack Youll Touch

  • Monetization: RevenueCat (entitlements, webhooks, paywalls)

  • Attribution: Singular (including SKAdNetwork)

  • Analytics & stability: Firebase Analytics, Remote Config, Crashlytics

  • Debugging: Charles Proxy; Xcode instruments