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Marek Svoboda
Verified Expert in Engineering
iOS Developer
Dublin, Ireland
Toptal member since May 5, 2025
Bio
Marek is a seasoned iOS and macOS engineer with over 15 years of experience delivering high-performance apps used daily by thousands, including airline electronic flight bag (EFB) solutions and productivity tools. He specializes in Swift, SwiftUI, and Objective-C and thrives in remote, cross-platform environments. A team player, Marek collaborates seamlessly across disciplines to deliver innovative solutions.
Portfolio
Mission Ctrl Inc.
Swift, AppKit, AppleScript, Xcode, iOS, MacOS, Cursor AI, Claude, Codex...
Freelance Clients
AppKit, Swift, Combine, RxSwift, SQLite, Git, Mobile App Development...
ViaSat
Swift, Objective-C, C#, AppKit, UIKit, XCTest, XCUITest, Git...
Experience
- Xcode - 15 years
- MacOS - 15 years
- Objective-C - 15 years
- UIKit - 15 years
- Swift - 10 years
- AppKit - 10 years
- SwiftUI - 5 years
- Cursor AI - 1 year
Preferred Environment
MacOS, Xcode, Cursor AI
The most amazing...
...application I've developed is an electronic flight bag (EFB) iOS app used by over 20,000 pilots worldwide across several of the largest airlines.
Work Experience
Senior Swift Engineer
2025 - PRESENT
Mission Ctrl Inc.
- Developed a complex framework of desktop window monitoring for easy window size and position management.
- Architected a universal SDK that can be used in various tools and apps.
- Rapidly developed new designs using various AI-assisted programming tools.
Technologies: Swift, AppKit, AppleScript, Xcode, iOS, MacOS, Cursor AI, Claude, Codex, SwiftUI, Accessibility
macOS Engineer
2025 - PRESENT
Freelance Clients
- Developed new features for a macOS time-tracking app, enhancing user productivity and reporting.
- Initiated development of a Windows 11 client using modern Swift and Swift for Windows Runtime (WinRT), extending platform support beyond Apple devices.
- Took full ownership of a continuously running application, maintaining reliability and stability for round-the-clock usage.
Technologies: AppKit, Swift, Combine, RxSwift, SQLite, Git, Mobile App Development, Optimization, RESTFul APIs, iOS, Apple Human Interface, Model View ViewModel (MVVM), Custom Views, AppleScript
Lead iOS/macOS Engineer
2015 - 2024
ViaSat
- Oversaw the development of AeroDocs 2.0, an iPad electronic flight bag app, using Swift and Objective-C.
- Built a fully tested UI layer with XCUITest and maintained comprehensive unit test coverage using XCTest.
- Developed Windows 10 versions of the iOS electronic flight bag app using C# with Universal Windows Platform (UWP) and Universal Windows Platform (UWP) frameworks.
- Architected a macOS HTTP server as an API for rapid quality assurance (QA) testing.
- Implemented an in-flight entertainment module for video streaming using Swift.
Technologies: Swift, Objective-C, C#, AppKit, UIKit, XCTest, XCUITest, Git, Mobile App Development, Optimization, RESTFul APIs, iOS, Apple Human Interface, Model View ViewModel (MVVM), Custom Views, C++, SQLite, iOS App Development, Native Mobile Apps, User Experience (UX)
Senior Software Engineer
2014 - 2015
Synchronoss Technologies
- Developed core macOS features for a cloud storage application tailored to enterprise users, including file synchronization, system integrations, and advanced Cocoa-based UI components.
- Enhanced the iOS codebase for customer-facing and enterprise apps, improving stability and performance in legacy Objective-C projects by refactoring key modules.
- Bridged the macOS and iOS engineering teams by leveraging cross-platform expertise, accelerating feature parity, and reducing implementation time by 25%.
Technologies: Objective-C, AppKit, UIKit, Git, Mobile App Development, Optimization, RESTFul APIs, iOS, Apple Human Interface, Custom Views, C, XCTest, SQLite, iOS App Development, Native Mobile Apps, User Experience (UX)
Experience
ViaSat AeroDocs Viewer
As the lead developer, I architected and delivered core features for a Swift-based iOS and iPadOS document viewer built for the airline industry. This included cloud syncing for manuals, forms, and reports, and the development of a custom document type and a tailored PDF rendering engine to meet industry-specific needs.
Timing App
https://timingapp.comI developed a Swift-based application for automatic time tracking of user activity, featuring seamless syncing across devices, a beautiful UI, and automatic reporting. I took full ownership of delivering new features and migrating legacy Objective-C code to modern Swift. Additionally, I spearheaded the effort to bring the Timing app to Windows using Swift with WinRT.
Bento App
http://bento.mscontrol.aiI led the full-cycle development of a macOS utility built entirely in Swift, translating a high-fidelity UI design and minimal specification into a polished product. I designed and implemented a modular architecture that handles complex window and context switching, built seamless interoperability between AppKit and SwiftUI, and enabled users to define and switch between work and personal application layouts in seconds. My end-to-end role, from defining services and models to integrating the UI and managing state, ensured reliable performance and a focused workflow assistance tool.
Certifications
JANUARY 2008 - PRESENT
MCPD: .NET Framework 2.0 Windows Applications
Microsoft
Skills
Libraries/APIs
RxSwift
Tools
Xcode, Git, Claude, Codex
Languages
Swift, Objective-C, C, C++, C#, AppleScript
Frameworks
AppKit, UIKit, SwiftUI, Combine, XCTest, XCUITest
Paradigms
Model View ViewModel (MVVM)
Platforms
MacOS, iOS
Storage
SQLite
Other
Mobile App Development, Optimization, RESTFul APIs, Apple Human Interface, Custom Views, iOS App Development, Native Mobile Apps, User Experience (UX), Cursor AI, UI Automation, Accessibility, System Programming
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