Senior iOS & Flutter Developer | SwiftUI, Objective-C, App Store Expert
Need to build a mobile app, rescue an existing app, modernise an older codebase or get a difficult release...Read moreSenior iOS & Flutter Developer | SwiftUI, Objective-C, App Store Expert
Need to build a mobile app, rescue an existing app, modernise an older codebase or get a difficult release through the App Store or Google Play?
I’m a senior mobile application developer with 15+ years of experience and 160+ apps shipped across the App Store and Google Play. I’m a Top CERT freelancer on PeoplePerHour with 180+ client ratings and extensive experience working with startups, businesses and long-term product owners worldwide.
My strongest expertise is native iOS development using SwiftUI, Swift, UIKit and Objective-C, together with Flutter, native Android/Kotlin and complex mobile application integrations.
I’m particularly useful when a project is not a simple greenfield build.
I regularly work with existing or partially completed applications that have build failures, old dependencies, Xcode or Gradle compatibility problems, App Store submission issues, crashes, unfinished features, subscription problems, API integrations or legacy Objective-C code that needs to be maintained or modernised safely.
iOS & Mobile App Development
I build and maintain native iPhone and iPad applications using SwiftUI, Swift, UIKit and Objective-C, as well as cross-platform applications using Flutter. I can also work with native Android applications using Kotlin and Java and support React Native projects where native iOS or Android expertise is required.
My work includes new mobile applications, existing app development, bug fixing, performance optimisation, SDK and dependency upgrades, Firebase integration, REST and GraphQL APIs, push notifications, authentication, real-time functionality, location services, camera and media features.
App Store, Subscriptions & Production Releases
I handle TestFlight, App Store Connect, signing and provisioning, privacy requirements, in-app purchases, subscription implementation, RevenueCat/StoreKit integrations and App Store submission.
If an existing application has been rejected or can no longer be submitted because of Apple requirements, outdated SDKs or technical issues, I can investigate the actual cause and prepare the application for resubmission.
Legacy iOS & Objective-C Development
Finding developers who are comfortable working inside older production Objective-C applications is becoming harder.
I have worked with iOS since the Objective-C era and can maintain mixed Objective-C/Swift codebases, replace deprecated APIs, resolve modern Xcode compatibility problems and gradually modernise applications without unnecessarily rewriting stable functionality.
Flutter Upgrades & Existing App Rescue
I can take over an existing Flutter application, diagnose dependency and plugin problems, resolve native Swift/Kotlin integration issues, update Xcode/Gradle configuration and prepare release builds for both App Store and Google Play.
I’m comfortable joining projects where another developer has left, documentation is incomplete or the application requires careful debugging before further development can continue.
AI & Modern Mobile Features
Where appropriate, I can integrate AI features using OpenAI APIs, Core ML and on-device intelligence while keeping the mobile architecture, performance and user experience production-ready.
For products that also require a web dashboard, administration panel or supporting frontend, I can work with React and Next.js and integrate mobile and web applications through APIs.
Technical credibility
Alongside commercial development work, I have built a long-standing technical presence on Stack Overflow with 49K+ reputation, 590+ answers and millions of developers reached.
I focus on maintainable production code, clear communication and realistic delivery rather than promising that every problem can be solved with a quick rewrite.
If you already have source code, send me the technology stack, current issue and your expected outcome. I can quickly determine the most practical way forward.
