With over 12 years of experience in the industry, I am a highly skilled and experienced React Native, iOS, graphic designer, and WordPress developer. I have a passion for creating beautiful and user-friendly digital experiences, and I have a proven track record of delivering successful projects for clients of all sizes, from startups to Fortune 500 companies. My expertise includes: React Native development iOS development Graphic design WordPress development UI/UX design Front-end development Back-end development API development I am also skilled in using a variety of popular tools and technologies, including: React Native Swift Objective-C Adobe Creative Suite WordPress PHP MySQL AWS Git I am a highly motivated and results-oriented individual with a strong work ethic. I am also a team player and I am always willing to go the extra mile to get the job done. If you are looking for a talented and experienced React Native, iOS, graphic designer, and WordPress developer to help you with your next project, please do not hesitate to contact me. I would be happy to discuss your needs in more detail and provide you with a free consultation.

Hi! I’m Evgeniy, an iOS developer with 7+ years of experience building, scaling, and refactoring mobile applications. What I Help Clients With 💡 Full iOS development from idea to App Store release ⚡ Refactoring, optimization & crash reduction 🎨 UI/UX improvements, feature development, redesigns 🐞 Bug fixing & performance stabilization 📲 App Store submission, updates & long-term support ⸻ Tech Stack Languages & Architecture: Swift • Objective-C • SwiftUI • UIKit • POP • SOLID • MVVM • MVC • MVP Frameworks & Tools: RxSwift • Combine • GCD • REST API • GraphQL • Alamofire CoreData • Realm • WebRTC • SpriteKit • SceneKit • ARKit • CoreML Push Notifications • In-App Purchase • FaceID/TouchID • HealthKit Analytics & Monetization: Apphud • OneSignal • Amplitude • AppsFlyer • AdSense Stability & Quality: Crashlytics • Sentry • Bugsnag XCTest • XCUITest • CI/CD • Gitflow • Fastlane Localization (multi-language support) I enjoy improving product architecture, refactoring legacy modules into scalable solutions, and implementing new features with clear logic and thoughtful UI/UX.

I've been working as an iOS Developer for 14 years. Experienced in both Swift and Objective-C, I have developed apps for the iPhone, iPad, Apple Watch and Apple TV. I've worked on Android too, both Java and Kotlin. I have submitted many apps to the App Store, with complex interfaces, extensive web service communication, and multimedia content. Some of these apps got good references in the press, and one of them, Back in Time, was selected by The New York Times as one of the Top 10 iPad apps of the year.

🚀 Staff iOS Engineer (10+ yrs) — Real-time Video/VoIP & AI Integration I build and fix iOS/macOS apps fast—clean, stable, and ready to ship. Previously at Fanatics (Live & Collect), Agora (macOS Tech Lead), and RingCentral (Staff Engineer). I specialize in two high-value areas: real-time audio/video systems and production AI integration. ✅ Selected impact • Reduced crash rate 10x through systematic stability work (crash/ANR triage, threading, memory) • Improved user NPS +40% via closed-loop quality optimization • Evolved a live platform from viewer-only → full broadcaster (streaming + interactions) • Built ANR monitoring (main-thread blocking detection) → 3x faster issue resolution • Experience shipping for massive-scale consumer products (e.g., bilibili-level traffic) 🎥 Real-time audio/video & streaming (production) • Live streaming & video conferencing: LiveKit / Agora SDK / Amazon IVS • AVFoundation capture/render pipelines, recording/upload, performance tuning • CallKit + PushKit VoIP calling (background, reconnect, audio routes, reliability) • Real-time interactions: auctions, voting, chat (WebSocket / GraphQL Subscriptions) • Screen sharing: iOS App Extension + macOS plugins • Socket/IM architecture experience; solid networking fundamentals (TCP/UDP) 🤖 AI integration • OpenAI / Claude API integration for user-facing features • HealthKit + Apple Watch data pipelines (sleep/HR/activity/workouts) • Prompt & context management, on-device + cloud orchestration for personalized insights 🏗️ Architecture & engineering • Clean Architecture / SOLID, protocol-oriented DI, modular design • TCA & MVVM (migration and coexistence), Swift Concurrency (async/await, Actors) • Swift + Objective-C, pragmatic refactors, long-term maintainability 🧪 Quality & delivery • Tests: XCTest/XCUITest, snapshot tests; TDD when valuable (Quick/Nimble) • CI/CD: Fastlane, Jenkins/GitHub Actions/Xcode Cloud, TestFlight/App Store release • Logging/analytics (e.g., Firebase/Crashlytics) to locate root causes quickly 🛠️ How I work • Start with a short paid assessment → confirm scope, estimate, and risks • Milestones with demos + clear acceptance criteria • Strong communication, pragmatic testing, and maintainable Swift • Available 40 hrs/week, fluent in English, timezone-friendly and responsive 💻 Equipment: Mac Studio (M1 Max, 32GB), dual 28” 4K monitors, 1Gbps fiber. If you’re building live video/VoIP features, integrating AI into an app, or need to stabilize and scale an existing codebase, feel free to message me—happy to review your scope and propose a plan.

I'm an iOS developer with experience in building small and medium sized apps. if you're looking for someone to help you to bring your ideas and designs to life I can definitely help with that. - I'm experienced in Swift and iOS development life cycle. - I work with both UIKit and SwiftUI - I'll be responsible for your App from start to finish - Regular communication is crucial for the process of delivering tasks. That way we can keep satisfaction at the end.

Enthusiastic software developer. I have started programming since 2003 while I had been studying at school. Since that time programming become my lovely work. My Skills: – Swift, Objective-C, JavaScript, C/C++, Ruby, Java, Python, PHP, ActionScript – iOS, visionOS, watchOS, tvOS, macOS, Android, Node.js, Ruby on Rails – SwiftUI, UIKit, Storyboards, Xib, SnapKit, AVFoundation – Game Development: Unity (Unity3d), Cocos2d, SpriteKit, Metal – AR - Augmented Reality: ARKit, ARCore, RoomPlan, SceneKit – Xcode, AppCode, IntelliJ IDEA, Android Studio – AI tools / agents: Claude Code, Codex, Cursor – Git, Mercurial, SVN – Github, Bitbucket, Gitlab – CocoaPods, Carthage, Swift Package Manager – Fastlane, SwiftLint – TDD/BDD: XCTest, Quick, Nimble, Unit tests, UI tests – SwiftData, CoreData, Realm, SQLite, MySQL – Swift Concurrency (Async/Await, Tasks, Actors), Combine – Clean Architecture, MVVM, FRP, RxSwift – Firebase (Firestore, Realtime Database, Authentication, Functions, Storage, Remote Config, Analytics), Supabase, AWS – API integration: Facebook, Twitter, Instagram, Venmo, Coinbase, Google Maps and many other

I focus on building reliable software and solving difficult technical problems efficiently. I specialize in building and stabilizing VPN applications for iOS and macOS using Swift — and in hybrid stacks where a Go networking core powers the packet tunnel (gomobile, DNS interception, UDP/TCP relay) alongside Network Extension on the Apple side. My work focuses on the parts that are hardest to get right: NetworkExtension integration, tunnel lifecycle, lock/sleep recovery, kill switch and on-demand behavior, reconnect flows, and platform-specific networking edge cases under iOS memory and background limits. I also work with Xray and Libbox integrations and have hands-on experience with VPN technologies including OpenVPN, IKEv2, IPSec, WireGuard, VLESS, VMess, and Shadowsocks. Recent delivery: stabilized a production parental-control VPN app — domain and image filtering, MITM inspection, DNS hardening (including DoH fallback), and fixed intermittent "no internet while VPN is on" after extended device lock. Shipped stable TestFlight builds with production-ready, root-cause fixes. I help teams resolve difficult issues around race conditions, state management, reconnect behavior, and long-running reliability across Apple platforms (iOS, macOS, tvOS). I'm a strong fit for projects that need more than basic mobile development — especially apps where connection stability, traffic filtering, native platform behavior, and deep debugging are critical. What I can help with: • iOS and macOS VPN development (NetworkExtension, Packet Tunnel) • Swift + Go hybrid VPN cores (tunnel, DNS, stability) • Kill switch, on-demand, reconnect, and tunnel management • Parental control / content filtering (domains, HTTPS image inspection) • Debugging lifecycle, networking, and memory-pressure issues • Stability, performance, and production hardening I focus on production-grade reliability — stable tunnels, correct filtering under edge cases, and fixes that hold up in real-world use (lock/sleep, reconnects, memory limits), not temporary workarounds.

Mobile and Web Developer of 7 years. I make apps, websites, take photos, and make music. Skills and Experiences: Programming: Swift, Objective-C, C#, React & React Native, Python, Kotlin Apple Frameworks: SwiftUI, UIKit, AppKit, PencilKit, CoreData, CoreImage, CoreGraphics, METAL, StoreKit/RevenueCat, CoreLocation, MapKit, TestFlight, Metal, AVFoundation, and more. Other: Photography, music/audio, Figma, Unity, Godot, 3D modeling, GitHub Actions, CI/CD, Firebase/Supabase

I don't just write code - I deliver solutions that drive real business results. I build native iOS apps and full-stack web products. Most of my work is iOS - Swift, SwiftUI, UIKit, but I've shipped a good number of React.js and Python projects as well, mostly SaaS platforms and web applications for startups and growing products. On the mobile side I've built apps from scratch and worked on complex existing codebases. The range is pretty wide: BLE and Bluetooth integrations for medical devices, VoIP clients with push notifications for incoming calls, food delivery apps with real-time map tracking, parental control systems with device-level Android controls, fintech apps with payment flows. I know the full release cycle well, architecture, development, QA, App Store submission, and post-launch support. On the web side I work with React.js on the frontend and Python on the backend. I've built property management platforms with KYC and payment integrations, fintech dashboards, marketplaces, and SaaS tools for various industries. REST APIs, third-party service integrations, role-based dashboards, that's standard territory for me. I've also worked on projects that combine both sides - a mobile app that's part of a larger web platform, or a web dashboard that controls what happens in the app. That kind of full-product thinking is probably where I add the most value, because I understand how all the pieces connect. Most of my projects run 3 to 12 months. I work well in async setups with clear requirements, and I'm used to collaborating directly with founders, product managers, and design teams. I give honest timelines, flag problems early, and won't disappear mid-project. Available for full projects, ongoing development, or focused scopes like a specific feature or integration. Updated - July 1, 2026

I'm an iOS Developer with 8+ years of commercial experience. Knows Swift and Objective-C languages. Have experience with Video Streaming, AVFoundation, ARKit, Native Spatial audio all of the Architecture Patterns, all popular Design Pattern, UIKit, SwiftUI, Texture(AsyncDisplayKit), KHKit.