parniekov

develop and maintain a cross-platform mobile application for iOS and Android platforms using React Native and Typescript based on Redux Toolkit with Redux Persist for state persistence. React Navigation for intuitive UI with over 25 screens: authentication, restaurant selection, order management, table management, payment processing, menu browsing, order editing, and profile management. HTTP requests through Axios and REST API. Real-time communication via SignalR WebSocket connections for live order updates. Integration of multiple payment gateways including POS terminals through native modules.

developandmaintainacross-platformmobileapplicationforiOSandAndroid platformsusingReactNativeandTypescriptbasedonReduxToolkitwithReduxPersistforstate persistence.ReactNavigationforintuitiveUIwithover25screens:authentication,restaurant selection,ordermanagement,tablemanagement,paymentprocessing,menubrowsing,order editing,andprofilemanagement.HTTPrequeststhroughAxiosandRESTAPI.Real-time communicationviaSignalRWebSocketconnectionsforliveorderupdates.Integrationofmultiple paymentgatewaysincludingPOSterminalsthroughnativemodules.

developandmaintainacross-platformmobileapplicationforiOSandAndroid platformsusingReactNativeandTypeScriptbasedonReduxToolkitandReduxSaga(SagaSlices). ReactNavigation,intuitiveUIforover30screens:authentication,registration,profile,payments, statements,transactions,cardmanagement,notifications,andchatwidgetintegration.HTTP requeststhroughAxiosandRESTAPI.PushNotificationsofFirebaseCloudMessagingforiOSand Android.Configurationofpermissionrequests,tokenhandling.IntegrationwithWatchOSapp throughObjective-Cbridge.WritingunittestsusingJestandReactNativeTestingLibrary.Setting upE2EtestingthroughDetox.Implementationofpre-commithooksthroughHuskyforautomatic codeverification.SettingupCI/CDthroughMicrosoftAppCenterwithseparateconfigurationsfor devandprodenvironments.AutomatedbuildsanddistributionthroughAppCenterand TestFlight.Implementationoffeaturetogglesforgradualfeaturerollout.Configurationof CodePushforrapidupdates.TokenstoragethroughReactNativeKeychain.Analyticsand MonitoringIntegrationfortrackingusageandcollectingcrashreports.Workinginateamwith trunk-baseddevelopmentstrategyandshort-livedfeaturebranchesforrapidchangeintegration.

developandmaintainthecross-platformmobileapployalty,payments(iOS/ Android)onReactNativeandJavaScript.Redux+ReduxPersistforstate,ReactNavigationforUI (50+screens).Features:Auth0andsociallogin,profileandorders,cartandcheckout, loyaltycardsandpoints,QRpaymentsandscanning,chat,referrals,pushnotifications, Mapboxfordeliverytracking,biometrics,Bugsnag,CodePush,Axios.Jest,Husky,Storybook, react-native-localization.

Leadthedevelopmentandmaintenanceofcross-platformmobileapplications (iOS/Android)acrossSport,Entertainment,andBusinessdomainsusingReactNativeand TypeScript.Architectedprojectsetupsandprovidedtechnicalestimationsforcorefeatures. DevelopedandmaintainedcomplexUI/UXandbusinesslogiccomponents.Engineeredcustom NativeModulesforhigh-performancefeaturesincludingCamera,VideoPlayer,andPDFEditor. ImplementedstatemanagementandformhandlingusingReduxSagaandFormik.Integrated secureauthentication(Google,Facebook),FirebaseDynamicLinks,andPushNotifications. ManagedAPIinteractionsviaFetchAPI.Conductedfeaturedemonstrationsforstakeholdersand providedtechnicalmentorshiptojuniordeveloperstoensurecodequalityandbestpractices.

developandmaintainamobileapplicationforandAndroidplatformusingJava andAndroidSDK.Retrofit2forAPIcalls,Glide/Picassoforimageloading,RecycleViewfor renderinglists.UsingLogcatandtheAndroidStudioProfilertotrackdownmemoryleaksor crashesreportedintheGooglePlayConsole.LocalPersistence:UsingRoomorSQLitetocache datalocally.BuildingscreensusingConstraintLayout.ImplementationAWSfacerecognition.

developandmaintainamobileandwatchapplicationsforAndroidplatform usingJavaandAndroidSDK.Retrofit2forAPIcalls,Glide/Picassoforimageloading,RecycleView forrenderinglists.UsingLogcatfordebugging.BuildingscreensusingLinearLayout, RelativeLayout,FrameLayout.ImplementationBluetoothconnectionbetweendevices,receive/ answercalls,trackdata.