Websocket, MVVM, Uikit, Stripe, Rest Apis, Swift, CoreMotion, Xcode Cloud, SwiftUI, async-await, Razorpay, HealthKit, payment SDKs, fastlane, identity verification, GitHub Actions, CI CD pipelines, offline-first patterns, Combine, App Store Connect, protocol-oriented programming

Swift UI, MVVM, Debugging, Memory Management, Git, Swift, Cocoa Pods, Performance Optimization, Compositional Layouts, Clean Architecture, Fastlane, Swift Package Manager, Payment Gateway Integrations, GitHub Actions, Deep Linking, Viper, CollectionViews, UI Layouts, Combine