Марко

Marko Voskresenskyi
📧 [open contact info](look above in the "contact info" section)
LinkedIn Profile
📍 Wrocław, Poland

Senior iOS Engineer
iOS Engineer with 15+ years of experience building production-grade applications across the full Apple
ecosystem — iOS, iPadOS, macOS, tvOS, and visionOS. Deep expertise in Swift, SwiftUI, UIKit and modern
concurrency. Strong background in app architecture, performance optimization, Objective-C to Swift migration,
client-server integrations, and cross-platform Apple development. Actively leverage AI-assisted development
tools to accelerate delivery, automate test generation, streamline code review, and improve overall code quality.

CORE SKILLS

Languages: Swift (primary), Objective-C
UI Frameworks: SwiftUI, UIKit
Concurrency: Swift Concurrency, GCD, Combine
Media: AVFoundation — playback, recording, editing, streaming
Data & Storage: SwiftData, CoreData, Realm
Networking: RESTful APIs, WebSockets
Platforms: iOS, macOS, iPadOS, tvOS, visionOS
Tools: Xcode, Git, Fastlane
Practices: App architecture (MVVM, MVC, MVP, REDUX/ReSwift, VIPER, TCA), TDD, unit & UI testing
(XCTest, Swift Testing), code review, CI/CD, App Store submission
Dev Approaches: OOP, POP (Protocol-Oriented Programming), SOLID, Clean Architecture, TDD, BDD (Quick/
Nimble), Feature Flags
AI-assisted development: Claude Code, GitHub Copilot, Cursor

PROFESSIONAL EXPERIENCE

Vimeo | Senior Software Engineer Sep 2020 – Apr 2026
Remote | Wrocław, Poland
Contributed to applications used by millions of users worldwide. (Vimeo and Vimeo Create):
• Implemented UI/UX components and video creation and playback features.
• Redesigned core playback and creation screens by migrating from UIKit to SwiftUI.
• Expanded platform coverage through development of visionOS and tvOS applications.
• Built and shipped app extensions integrated with the main Vimeo product, managing the full App Store
release cycle
• Optimized application performance through profiling and memory management, reducing crash rates
across flagship releases
• Authored unit and UI tests using XCTest, maintained high coverage across critical modules, and led code
review sessions
• Led migration of large legacy Objective-C modules to modern Swift architecture.
• Collaborated closely with product and design teams on end-to-end delivery of major releases

bMuse Ukraine | iOS Software Engineer & Team Lead Jan 2013 – Apr 2020
Zaporizhzhia, Ukraine
Developed an interactive video creation platform for iPad, enabling users to record, edit, and share videos
across multiple cloud services.
• Architected and developed video recording and editing features using AVFoundation.
• Integrated cloud storage solu ons including AWS, YouTube, Google Drive, and Dropbox.
• Implemented server synchronization and RESTful API communication
• Built companion iPhone applications with advanced features: multi-camera setup, remote control for video
recording, real-time video streaming
• Led migration from Objective-C to Swift across the codebase, reducing technical debt and accelerating
feature velocity
• Designed scalable app architecture using UIKit and CoreData; managed App Store submissions and
release process
• Optimized video processing performance and memory management
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UNITSOL LLC | iOS Software Engineer Sep 2012 – Jan 2013
Zaporizhzhia, Ukraine
• Developed iOS applications using Objective-C, UIKit, and iOS SDK
• Designed app architecture and implemented UI/UX solutions
• Integrated data persistence and networking features
• Collaborated with clients on requirements and delivery

Smoozee Development Group | iOS Software Engineer Jan 2010 – Dec 2011
Zaporizhzhia, Ukraine
Developed iOS applications for diverse clients in an outsourcing environment, delivering custom solutions
across various industries.
• Designed and developed iOS applications from concept to App Store release
• Implemented app architecture, UI/UX components, third-party API integrations, and networking features
• Collaborated directly with clients to gather requirements and provide technical consultation

Conkurent LLC | Junior iOS Engineer May 2009 – Dec 2009
Zaporizhzhia, Ukraine
Developed iOS applications in an outsourcing environment, building custom solutions for various clients.
• Developed iOS applications using Objective-C, UIKit, and iOS SDK
• Designed app architecture and implemented UI/UX solutions
• Integrated data persistence and networking features
• Collaborated with clients on requirements and delivery

EDUCATION

Zaporizhzhia Institute of Economics and Information Technologies
Bachelor’s Degree in Information Technology | 2006 – 2010

LANGUAGES

Ukrainian (native) Russian (native) English (Upper-Intermediate / B2)