Available to hire
I’m Amber Zaid, a Lead iOS Developer with 7+ years of experience delivering high-performing, user-focused apps using Swift and Objective-C. I specialize in API integration, performance optimization, and automated testing with XCTest, crafting scalable, feature-rich solutions that align with Apple’s standards and ensure compatibility across devices.
I thrive in collaborative environments, working closely with product teams to translate feedback into polished features, and consistently ship high-quality updates that maintain strong App Store ratings.
Skills
Work Experience
Lead iOS Developer at Sphere Software Labs
June 1, 2022 - PresentLed the development of new features including dark mode and multilingual support; implemented Push Notifications and Geofencing; improved app accessibility by 20%. Streamlined onboarding to reduce registration drop-off by 15%. Maintained a 4.5+ App Store rating through quality releases.
Senior iOS Developer at Vallum
March 1, 2022 - September 8, 2025Built and maintained iOS UIs with UIKit; integrated camera and location features; handled backend REST API integrations and JSON data; ensured responsive layouts with Auto Layout; managed app releases in the App Store following Apple guidelines.
iOS Developer at Next Gen IT
September 1, 2020 - September 8, 2025Led architecture and development of a scalable iOS app using MVVM; implemented CloudKit for cloud storage and real-time syncing; introduced performance monitoring with Firebase Crashlytics and Xcode Profiler; refined UX to reduce navigation issues; optimized Core Data/Realm queries for faster data retrieval.
Lead iOS Developer at Sphere Software Labs
June 1, 2022 - PresentLed development of new features including dark mode and multilingual support; implemented push notifications and geofencing to boost engagement; collaborated with product owners to prioritize features based on user feedback and market demand; streamlined onboarding, reducing registration drop-off by 15%; delivered regular high-quality app updates, maintaining a 4.5+ App Store rating.
Senior iOS Developer at Vallum
March 1, 2022 - September 8, 2025Built and maintained iOS UIs with UIKit, delivering responsive designs; integrated camera functionality and location services to enhance interactivity; worked on backend integrations via REST APIs and JSON data; employed Auto Layout to ensure consistent performance across devices; managed app releases on the App Store in line with Apple's guidelines.
iOS Developer at Next Gen IT
September 1, 2020 - September 8, 2025Led the architecture and development of a scalable iOS app using MVVM; implemented CloudKit for cloud data storage and real-time syncing across devices; introduced Firebase Crashlytics and Xcode Profiler, improving 40% app stability; refined user experience to reduce navigation-related issues by 15%; optimized Core Data and Realm queries for faster data retrieval.
Education
Qualifications
Industry Experience
Software & Internet, Media & Entertainment, Professional Services
Skills
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