Hire the Best Objective-C Developers
in Ukraine

I have huge experience in mobile app development. I started my path with Flash Platform and still have an Adobe AIR + Flex project on support. I have experience in building native apps, mostly for iOS (Objective-C and Swift). I don’t have much of the experience in building native Android apps but I made a lot of extensions for AIR platform and built some utility apps for internal use. And now I also building apps using Flutter (Dart) which I very like. This is how Flash Platform should looks like in nowadays ;)

𝟮𝟬+ 𝗮𝗽𝗽𝘀 launched, with 𝟭𝟬 𝘆𝗲𝗮𝗿𝘀 of experience building native iOS and macOS apps. 💬 Get 𝗙𝗥𝗘𝗘 20-minute consultation! I’ll review your requirements, discuss the technical approach, and answer any questions. 🤖 Using Codex and Claude Code to 𝗱𝗲𝗹𝗶𝘃𝗲𝗿 𝗳𝗮𝘀𝘁𝗲𝗿 and 𝗿𝗲𝗱𝘂𝗰𝗲 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗰𝗼𝘀𝘁𝘀, with every change reviewed to ensure 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻-𝗾𝘂𝗮𝗹𝗶𝘁𝘆 code. As an iOS Developer with 10+ years of experience in Native Mobile App Development, I specialize in building iOS applications with Swift, SwiftUI, UIKit, and Objective-C. I work on production systems with a strong focus on performance, stability, maintainability, and delivering a polished user experience. 💡 Why clients work with me ✅ Native iOS Developer focused exclusively on Apple platforms ✅ 9+ years of hands-on iOS development experience ✅ Strong experience with large and legacy codebases ✅ Production-focused development approach ✅ Clean, scalable, and maintainable architecture ✅ Fast iteration using AI-assisted development workflows ✅ Reliable communication and long-term support I’m comfortable working on both MVPs and long-term products, including apps with complex business logic, real-time features, offline-first architecture, CloudKit synchronization, and App Store releases. My expertise includes: ✔️ Building native iOS apps from scratch ✔️ Improving and maintaining existing apps ✔️ Fixing crashes, bugs, and unstable behavior ✔️ Refactoring legacy UIKit / Objective-C codebases ✔️ Migrating apps to SwiftUI ✔️ Performance optimization & debugging ✔️ API integrations, subscriptions & push notifications My technical expertise includes Swift, SwiftUI, UIKit, Objective-C, CoreData, SwiftData, CloudKit, StoreKit, Firebase, AWS, REST APIs, RevenueCat, AppsFlyer, real-time systems, subscriptions, and push notifications. Have an iOS app to build, improve, or fix? Let’s discuss your goals and how I can help.

I’m a Senior iOS Developer with more than 10 years of experience creating user-focused mobile products from concept to release. I collaborate closely with product teams to deliver intuitive, high-quality applications for diverse audiences. Programming languages - Swift - Objective-C Frameworks - SwiftUI - Combine, RxSwift - MVVM, MVP - SPM, Cocoapods Databases - Coredata - MySQL Tools - Xcode - Firebase Crashlytics - Git - Fastlane, Bitrise, Xcode server PM methodologies: Agile, Kanban, Scrum Whether you’re starting a new app or improving an existing one, I’m ready to help bring your product forward. Let’s connect.

Senior iOS Developer with 13+ years of experience in mobile application development. Specialized in Swift, SwiftUI, UIKit, and multithreading (GCD, Operations, Swift Concurrency). Experienced in implementing complex architectures (MVVM, VIPER) and optimizing performance for applications with an audience of over 5M users. Skilled in integrating with REST and GraphQL APIs. Proven track record in leading small teams and mentoring developers. • Led the development of a mobile application that reached 5M+ monthly active users. • Improved application performance by 20% through deep code optimisation and effective memory management. • Successfully delivered and launched over 15 high-load mobile applications to the App Store. • Built a smart home control app used by 20K+ active users, increasing user retention by 35% through UX improvements. • Developed solutions with RTMP streaming, Core Bluetooth, and 3D printer control capabilities. • Managed cross-functional teams of up to 5 developers, ensuring on-time delivery and high product quality. Personal skills: responsibility, diligence, punctuality, honesty, commitment, desire for self-development, fast learning, communicative

For sixteen years, I work as an iOS Developer. During this time, I have completed many projects. More than half of my projects are client applications for servers. I understand how such applications are arranged. How to receive the data from a service using a REST API. I know how to parse a service response and display it in an app and create offline mode. I have experience with video and audio. I can combine video files, put sound on them, change this sound, add text or image to the resulting video. I worked with video and audio players and recorders. I worked with Maps. I can display places on this map, present custom callouts on it, and show routes from a user location to these places. I also can work with the CoreData framework. I know how to get data from a database on a thread and display it to a user without an interface freezing. In 2017 I decided to create some apps on my own. My friend is a radiologist, and he shared with me his idea about a medicine app. We have created this app and published it to AppStore. You can find it if you search for RadAnatomy and RadAnatomyLite. 50% of the proceeds I transfer to my friend. During the work on this app I put myself in the place of customers and gain the priceless experience how an idea is embodied to the app. I can use Photoshop and Sketch, and you do not need to slice images. Just provide me a file with a design. The rest I will do by myself. I pay attention to pixel-perfect and custom fonts because I respect designer work

$𝟑𝟎𝐊+ 𝐢𝐧 𝐂𝐥𝐢𝐞𝐧𝐭 𝐑𝐞𝐯𝐞𝐧𝐮𝐞 | 𝟑𝟎+ 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 | 𝟏𝟎𝟎% 𝐂𝐥𝐢𝐞𝐧𝐭 𝐒𝐚𝐭𝐢𝐬𝐟𝐚𝐜𝐭𝐢𝐨𝐧 My goal is simple - your mobile app should be stable, scalable, and valuable for your business. I’m Olha, a Mobile App Developer specializing in native iOS and Android development with Swift, SwiftUI, Kotlin, and Java. I help startups, SaaS companies, healthcare products, fintech platforms, logistics businesses, streaming services, and enterprise teams build mobile applications that are ready for real users. Whether you need an MVP, a new mobile app from scratch, improvements to an existing iOS or Android app, or long-term mobile development support I can help you move from idea to launch with clean native development. ✔️ Mobile App Developer — full-cycle mobile app development from idea, architecture, and development to App Store and Google Play release. ✔️ iOS Developer — native iOS apps built with Swift, SwiftUI, Objective-C, Apple frameworks, and scalable architecture. ✔️ Android Developer — native Android apps built with Kotlin, Java, Android Studio, Google SDKs, and clean maintainable code. ✔️ Native iOS & Android Development — stable, fast, and user-friendly mobile apps without unnecessary cross-platform complexity. ✔️ Long-Term Mobile Development Partner — support, maintenance, new features, performance optimization, and product scaling after launch. 🔥 ACHIEVEMENTS ✔️ 8+ years of experience as a Mobile App Developer building native iOS and Android applications across multiple industries. ✔️ 30+ mobile app development projects delivered for startups, SaaS, healthcare, fintech, logistics, streaming, wellness, and enterprise products. ✔️ $30K+ in client revenue supported through mobile app development, product improvements, and long-term development cooperation. ✔️ Native mobile apps built for products with 2M+ downloads, 500K+ users, and high daily engagement. ✔️ iOS and Android applications delivered for logistics platforms operating across 60+ cities. ✔️ Mobile app development for AI-powered platforms, fintech products, wearable apps, booking systems, delivery apps, and streaming solutions. ✔️ Strong experience improving existing iOS and Android apps through performance optimization, UI/UX improvements, bug fixing, and feature development. 🚚 WHERE I DELIVER ✔️ As a Mobile App Developer — I build mobile applications from MVP to production-ready product, including architecture, development, integrations, testing, deployment, and maintenance. ✔️ As an iOS Developer — I deliver native iOS apps for iPhone, iPad, Apple Watch, and Apple ecosystem products using Swift, SwiftUI, and Objective-C. ✔️ As an Android Developer — I deliver native Android apps for smartphones, tablets, WearOS devices, and Android-based ecosystems using Kotlin and Java. ✔️ As a Native Mobile App Developer — I work with Firebase, AWS, REST APIs, GraphQL, push notifications, subscriptions, analytics, payments, and real-time features. ✔️ As a long-term development partner — I help improve existing mobile apps, reduce technical debt, optimize performance, and add new features without breaking the product. 🏆 INDUSTRY IMPACT ✔️ Healthcare & Wellness Apps — native iOS and Android development for wellness platforms, healthcare tools, wearable integrations, biometric data, and user activity tracking. ✔️ Fintech Mobile Apps — secure payment flows, Stripe and PayPal integrations, Apple Wallet features, subscription systems, and financial dashboards. ✔️ Logistics & GPS Apps — GPS tracking, geofencing, delivery tracking, real-time location updates, driver apps, and logistics management tools. ✔️ Streaming & IPTV Apps — IPTV applications, OTT platforms, FireTV apps, video playback optimization, and low-latency streaming features. ✔️ Wearables & IoT Apps — Apple Watch, WearOS, BLE devices, IoT sensors, smart devices, and biometric integrations. ✔️ AI-Powered Mobile Apps — AI productivity apps, AI wellness platforms, LLM integrations, real-time analytics, and AI-powered user experiences. ✔️ Booking, Delivery & Marketplace Apps — mobile products with user profiles, payments, notifications, dashboards, real-time updates, and scalable app architecture. ⚒️ HOW I BUILD ✔️ iOS Development: Swift, SwiftUI, Objective-C, Xcode, Apple frameworks, Apple Watch, Apple Wallet, App Store deployment. ✔️ Android Development: Kotlin, Java, Android Studio, Google SDKs, WearOS, Google Play deployment, Android architecture. ✔️ Mobile App Development Stack: Firebase, AWS, REST APIs, GraphQL, push notifications, subscriptions, payments, analytics, dashboards, real-time tracking. ✔️ Product Development: MVP development, startup mobile app development, enterprise mobile apps, UI/UX optimization, performance improvements, feature development. ✔️ Architecture & Workflow: clean architecture, scalable codebase, CI/CD, Agile workflow, code review, app maintenance, long-term support.