Mobile Engineer

What you will do:Understand the architecture and lead the development of our lending app acrossAndroid and iOSplatforms. Own critical features end-to-end: from requirement analysis, design, coding, testing, deployment, to post-release monitoring. Build intuitive, high-performance, and secure app experiences that drive trust and adoption in financial products. Work closely with product, design, and backend teams to deliver features that improve loan journeys, repayments, and customer engagement. Integrate with native device capabilities, 3rd party SDKs, payment gateways, and regulatory frameworks (KYC, compliance, etc.). Optimize app performance for scale such as battery usage, network reliability, and offline-first workflows. Mentor junior developers, review code, and follow the best practices in mobile architecture and CI/CD pipelines. Bridge the native and cross-platform worlds by building and maintaining robust communication layers between our core Android components, ensuring seamless and performant interactions. Stay updated with industry trends (AI/ML-driven personalization, app security, open banking APIs) and bring innovative ideas to Prefr.You should apply if you:Have5–8 yearsof proven experience in building and scaling consumer-facing apps (at least 1 end-to-end app on both Play Store & App Store). Are proficient inKotlin/Java (Android)andSwift/Objective-C (iOS) , with good exposure toFlutter/React Nativefor cross-platform features. live and breatheperformance tuning, with demonstrable experience in debugging and optimizing memory, threading, and rendering issues on Android Have experience infintech or lending apps(preferred), understanding secure data handling, payments, and compliance requirements. Thrive onbuilding pixel-perfect UI/UXand delivering smooth, reliable user journeys. Have strong problem-solving skills, an ownership mindset, and the ability to lead technical discussions. are open to learning new technologies and are excited to grow your skills across the mobile stack. Bonus: Experience withAI-first app development(AI-assisted workflows, personalization, or chatbot integration).Why join Prefr? Opportunity toshape the future of app-based lending in India . Work with a passionate, fast-moving team that values ownership and innovation. Flexible and transparent work culture. Competitive compensation and industry-best benefits.Must Have Demonstrated evidence of writingKotlin (Android)andSwift (iOS) . Strong understanding ofOOPand commondesign patterns ; practical MVVM on both platforms (Hilt/DI on Android; Coordinators/DI patterns on iOS). Strong analytical and troubleshooting skills forroot-cause analysis(Crashlytics, Logcat/ADB, Xcode logs, Instruments/MetricKit). Solidnetworkingfundamentals on both: Retrofit/OkHttp (Android) and URLSession/Alamofire (iOS); auth/refresh, interceptors/middlewares, robust error handling. Ability to buildmodular, extensiblefeatures/libraries (Android feature modules; iOS frameworks/SPM/CocoaPods). Demonstrated evidence ofdata/analytics instrumentation(Firebase Analytics/BigQuery or equivalent) and event taxonomy. Understanding ofRESTful APIusage and versioning; collaborate effectively with microservices backends. Deep links/app linkson Android (HTTP App Links) andUniversal Linkson iOS;WebView/WKWebView integrationswith JS bridges. Push notificationsend to end: FCM (Android) and APNs (iOS), including deep links and attribution. Store operations & compliance on both:Google Play(targetSdk, Data Safety) andApp Store(ATS/privacy, review guidelines).Should Have Foster usage ofmodern language constructsvia code reviews (Coroutines/Flows, sealed classes on Android; async/await, structured concurrency on iOS). Experience withunit/UI/integration testing : JUnit/MockK/Espresso/Compose tests (Android); XCTest/XCUITest/Quick/Nimble (iOS). Understandhigh-level design andwritelow-level designdocs for mobile features/modules. Manage and prioritize multiple tasks in afast-pacedenvironment; clear communication with product/QA/backend/design. Experience with theFirebase suiteacross both platforms: Analytics, Crashlytics, Remote Config, and Performance. Experience withCI/CD : Gradle + Fastlane/Play Publisher (Android); Xcode build systems + Fastlane/TestFlight (iOS); GitHub Actions/Jenkins. Experience withmonitoring/release health : Crashlytics, Play Console vitals, Xcode Organizer/MetricKit.Nice to have Mobile security hardening:certificate pinning(OkHttp/TrustKit),Play Integrity(Android) /DeviceCheck/App Attest(iOS), anti-debugging/root/jailbreak heuristics. Ability to solve problems atscale(heavy WebView journeys, OEM/device fragmentation, performance & memory tuning). A/B experiments andRemote Config -driven rollouts.