Sep 2011 — Jan 2015 · Oversaw sales operations, contributing to market growth and customer engagement
Swift: prefer value types; keep structs small & copy-cheap.Obj-C: add nullability and NS_SWIFT_NAME for nicer bridging.SwiftUI: @MainActor on models touching UI timelines.Performance: Instruments → Time Profiler before "optimizing".Startup: lazy heavy singletons; defer HealthKit auth.Combine: erase with AnyPublisher before crossing layers.Interop: tiny Obj-C shims for tricky C APIs.Debug: use os_signpost and points of interest in Instruments.Memory: weak self in closures; avoid retain cycles.SwiftUI: @StateObject for ownership; @ObservedObject for injection.Testing: XCTAssertThrowsError for proper error validation.Async: prefer async/await over completion handlers.Core Data: use NSBatchUpdateRequest for bulk operations.UIKit: prefer compositional layout over manual constraints.Build: use .xcconfig files for environment-specific settings.Networking: URLSession.shared is fine; custom sessions for specific needs.SwiftUI: .task modifier beats .onAppear for async work.Security: Keychain for tokens; UserDefaults for preferences only.Architecture: MVVM + Combine scales better than MVC in SwiftUI.Optimization: lazy var for expensive computed properties.