Zafar A.

I am a Senior iOS Developer with 10+ years of experience building high-quality iPhone and iPad applications, primarily using Swift, with good experience in Objective-C for legacy codebases, maintenance, and migration. I specialize in creating clean, scalable, and user-friendly iOS apps that deliver a smooth experience for users and real value for businesses. I have worked on a wide range of iOS projects, including apps with REST APIs, Firebase, in-app purchases, subscriptions, ads, analytics, push notifications, animations, and third-party SDK integrations. My core iOS expertise includes: * Swift, Objective-C, UIKit, MVC, MVVM * REST APIs, JSON, XML, Alamofire * Firebase Crashlytics, Analytics, Remote Config, Messaging * In-App Purchases and subscription-based apps using StoreKit and StoreKit 2 * App Store deployment and release management * Push notifications and deep linking * Local storage using UserDefaults, Document Directory, CoreData and related solutions * Third-party SDKs such as Google Mobile Ads, AdMob, IronSource, Tapdaq, Mixpanel, TikTok Open SDK, and social login integrations * Image loading and caching using Kingfisher and SDWebImage * UI development from Sketch, Figma, UI/UX mockups, and design requirements * Animations using Lottie and GIF-based solutions * Debugging, performance optimization, Xcode Instruments, Time Profiler, and Memory Graph debugging * Git, GitHub, SourceTree, CocoaPods, command line tools, and team collaboration tools such as Trello I am comfortable working on both new applications from scratch and improving existing apps. I can help fix bugs, improve performance, refactor old Objective-C code, migrate features to Swift, integrate APIs, resolve App Store issues, and build production-ready iOS features. I enjoy solving complex problems because they keep my skills sharp and help me deliver better solutions. My goal is always to write reliable code, communicate clearly, and deliver work that meets both technical and business requirements. I also have previous experience with HTML, CSS, JavaScript, C, C++, QML, Qt, PhoneGap, and Adobe Photoshop, which helps me understand cross-platform, UI, and product-related requirements more effectively. If you are looking for an experienced iOS developer who can build, improve, or maintain your app with quality and professionalism, I would be happy to help.