Technology Proficiency:Proficient in Kotlin and Java, with hands-on experience in Swift and Objective-C for iOS development.Mastery of various software development methodologies, including Waterfall, Test Driven Development, SCRUM, and Pair Programming.Demonstrated expertise in technologies such as Kotlin, Async Callback, Junit, Mockito, MVC Architecture, and Glide.Multithreading and UI/UX:Skilled in multithreading for Android and iOS platforms, utilizing GCD, NSOperations, Kotlin coroutines, and AsyncTask.Implemented a nine-page onboarding screen using Jetpack Compose, showcasing adaptability to cutting-edge technologies.Testing Frameworks and CI/CD:Experience with testing frameworks such as JUnit, Mockito, Espresso, and Hamcrest.Proficient in CI/CD pipelines and deployment using Azure DevOps Pipelines.iOS Development Expertise:Skilled in using UIKit and SwiftUI for creating iOS user interfaces.Well-versed in Apple's Human Interface Guidelines (HIG) for designing iOS apps.Backend Integration and Security:Familiarity with Spring modules such as MVC, Data JPA, and Security, contributing to secure and high-performing applications.Adept at resolving challenges related to memory leaks, push notifications, multiple screen support, offline data usage, audio and video features, graphic design, and animation.Versatility and Collaboration:Proficiency in front-end technologies including Angular, TypeScript, JavaScript, HTML, and CSS.Collaborated with cross-functional teams for successful architecture refactoring from MVP to MVVM.Media Content Handling:Expertise in media content handling, utilizing Media Player, Media Recorder, Video Views, and Surface Views for multimedia playback.Code Quality and Best Practices:Developed high-quality, maintainable, and efficient code using Kotlin, Java, and Swift.Adhered to best practices for offline operation, keeping data in sync with the server.Project Achievements:Pivotal role in the successful launch of three mobile applications, each achieving a 4.5+ rating on both the App Store and Google Play Store.Implemented A/B testing strategies resulting in a 20% increase in user engagement and a 15% boost in in-app purchases.Reduced app load times by 25% through back-end optimization, enhancing user satisfaction and retention.