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Zhivko Manchev
Verified Expert in Engineering
iOS Developer
Strumica, Strumitsa, Macedonia
Toptal member since May 31, 2026
Bio
Zhivko is a lead iOS developer with 11+ years of experience building high-quality native iOS applications in Swift and SwiftUI. He focuses on MVVM architecture, TDD, and scalable system design, consistently delivering production-ready apps with clean, testable, and maintainable codebases.
Portfolio
WolfWare
iOS, Swift, SwiftUI, Model View ViewModel (MVVM), LiDAR...
Adamantus
iOS, AVFoundation, UIKit, Swift, Model View ViewModel (MVVM)...
Digimak
iOS, MVC Frameworks
Experience
- iOS - 11 years
- Swift - 9 years
- Test-driven Development (TDD) - 8 years
- Modularization - 8 years
- Model View ViewModel (MVVM) - 7 years
- SwiftUI - 4 years
- Swift Concurrency (async/await) - 4 years
- tvOS - 1 year
Work Experience
Lead/Senior iOS Developer
2022 - 2025
WolfWare
- Led the development of an iOS app for drone pre-flight planning with maps, weather, forms and checklists to ensure safety and compliance.
- Integrated documentation and real-time data, streamlining the pre-flight process for drone operators with offline support for seamless operation in remote areas.
- Built a fan engagement app for Formula Drift fans with multiple simultaneous livestreams, driver profiles, brackets, real-time event updates and interactive features for fans.
- Developed a hockey social media app enabling coaches and pro players to review and analyze user-submitted play videos.
- Integrated video editing, drawing tools, and voice feedback to provide personalized coaching.
- Delivered MVPs for social media platform, room scanning using LiDAR, and betting platform, focusing on core features, performance and fast delivery to meet business needs and user engagement.
Technologies: iOS, Swift, SwiftUI, Model View ViewModel (MVVM), LiDAR, Test-driven Development (TDD), CI/CD Pipelines, Code Review, Modularization, Swift Concurrency (async/await), Supabase, WebRTC, Stripe, StoreKit, OpenWeatherMap, OneSignal, Push Notifications, CoreLocation, MapKit, Google Maps SDK, Mapbox, tvOS
iOS Developer
2014 - 2022
Adamantus
- Developed high-traffic iOS and Android apps, with several reaching over a million users.
- Led development of multiple iOS apps and an internal barcode-scanning framework used across native and cross-platform projects.
- Built a modular, unit-tested iOS framework powering Cordova, React Native, Flutter, and NativeScript plugins.
- Enabled centralized logic, easier maintenance, and consistent updates across platforms.
Technologies: iOS, AVFoundation, UIKit, Swift, Model View ViewModel (MVVM), Test-driven Development (TDD), CI/CD Pipelines, MVC Frameworks, Code Review, Modularization, Stripe, StoreKit, Push Notifications, CoreLocation, CoreVideo, Google Maps SDK
iOS/Android Developer
2019 - 2021
Digimak
- Developed customer-facing iOS features that enabled users to monitor call activity, mobile data consumption, billing details, and payment history through a unified self-service mobile experience.
- Implemented invoice payment functionality through integrated web-based payment flows, improving accessibility and streamlining the payment process for mobile subscribers.
- Collaborated with back-end and product teams to deliver stable, maintainable, and responsive account-management features for a high-usage telecommunications application.
Technologies: iOS, MVC Frameworks
iOS Developer
2016 - 2020
StadiaConnect
- Constructed multiple iOS apps for various soccer teams.
- Implemented a reusable codebase to streamline app creation for new teams.
- Simplified the process of adding or updating features across existing apps.
Technologies: iOS, Swift, UIKit, Push Notifications, Modularization
Project History
Offline-first Drone Flight Planning App
An iOS application designed for drone pilots to plan and document flights safely and efficiently. The app combines location-based planning, weather data, airspace restrictions, and structured checklists into a single pre-flight workflow.
Built with an offline-first approach, it remains fully usable in remote areas with limited connectivity, a critical requirement for real-world flight operations. The experience was optimized for both iPhone and iPad, with iPad-specific layouts to support larger-screen workflows used in professional and field environments.
Built with an offline-first approach, it remains fully usable in remote areas with limited connectivity, a critical requirement for real-world flight operations. The experience was optimized for both iPhone and iPad, with iPad-specific layouts to support larger-screen workflows used in professional and field environments.
Social Network App for Sports Communities
A mobile marketplace connecting youth athletes with professional coaches through personalized video analysis, real-time chat, and paid coaching services.
Athletes could submit gameplay videos and receive professional feedback through annotated video breakdowns, voice commentary, and in-app messaging. Payments, subscriptions, and media sharing were fully integrated into a streamlined iOS experience.
Athletes could submit gameplay videos and receive professional feedback through annotated video breakdowns, voice commentary, and in-app messaging. Payments, subscriptions, and media sharing were fully integrated into a streamlined iOS experience.
White-label Soccer Team Apps
A suite of 4 iOS applications built for professional soccer teams, all powered by a shared, reusable codebase with team-specific customization. The platform was designed to support the rapid deployment of new team apps while allowing features and improvements to be rolled out consistently across all existing apps.
Each app delivers a complete fan experience, including news and video content, detailed match centers, live scores, standings, and player profiles. Live match updates and commentary ensure fans stay engaged in real time, while the modular architecture enables efficient maintenance and long-term scalability.
Each app delivers a complete fan experience, including news and video content, detailed match centers, live scores, standings, and player profiles. Live match updates and commentary ensure fans stay engaged in real time, while the modular architecture enables efficient maintenance and long-term scalability.
Motorsports Fan Engagement & Livestream
A fan engagement app designed to enhance the live motorsports experience through real-time event data, interactive features, and high-quality live streaming.
The app supported multiple simultaneous live streams, driver profiles, competition brackets, real-time event updates, and interactive fan features. It significantly increased daily app usage during live events compared to the previous generation app.
The app supported multiple simultaneous live streams, driver profiles, competition brackets, real-time event updates, and interactive fan features. It significantly increased daily app usage during live events compared to the previous generation app.
Education
2009 - 2014
Bachelor's Degree in Computer Science
Goce Delcev University - Shtip, North Macedonia
Skills
Libraries/APIs
OpenWeatherMap, WebRTC, Stripe, Google Maps SDK
Tools
CoreLocation, OneSignal, Xcode, Git, Figma, Jira, TestFlight
Languages
Swift, GraphQL
Paradigms
Model View ViewModel (MVVM), Test-driven Development (TDD), Modularization, Object-oriented Programming (OOP)
Frameworks
SwiftUI, UIKit, StoreKit, MapKit
Platforms
Firebase, tvOS, iOS, Mapbox
Storage
Databases
Other
CI/CD Pipelines, MVC Frameworks, SOLID Principles, Code Review, Swift Concurrency (async/await), Push Notifications, LiDAR, VoIP, Computer Vision, Supabase, CoreVideo, AVFoundation, Speech-to-Text (STT), Algorithms, Data Structures, Networking, WeatherKit, Live Chat, Video Editing, Red5, Supabase Auth, Video Livestreaming, LiveStream
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