Lukáš Foldýna, Developer in Prague, Czech Republic
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Lukáš Foldýna

Verified Expert  in Engineering

Apps Developer

Prague, Czech Republic
Toptal Member Since
May 15, 2015

Lukáš is an iOS and macOS developer with a passion for design and intuitive, user-friendly interfaces. He started his career as a graphic designer, but soon he paired that skill with software engineering in order to become a full-time iOS developer.



Preferred Environment

Adobe Photoshop, Sketch, Git, Xcode, OS X

The most amazing...

...thing I've built is Instashare for iOS and OS X, which I created and designed, and which has been downloaded by millions of people.

Work Experience

Lead iOS Developer

2017 - PRESENT
  • Built leading-edge mobile banking.
Technologies: UIKit, Swift

Founder, iOS/OS X Developer

2008 - PRESENT
  • Designed and built productivity applications and sold them in app stores for various platforms.
  • Built several iOS and OS X apps for various clients.
  • Developed frameworks to be reused and changed easily.
Technologies: WatchKit, AppKit, UIKit, Swift, Objective-C

Senior iOS Developer

2017 - 2017
  • Built an app for a POS system.
Technologies: UIKit, Swift

Lead MacOS Developer

2016 - 2017
Beam, Inc.
  • Led the development of a screen sharing application for macOS.
Technologies: Amazon Web Services (AWS), WebRTC, AppKit, Cocoa, C++, Objective-C, Swift

iOS Developer

2016 - 2016
Userbrain, Ltd.
  • Developed iOS apps.
Technologies: Amazon Web Services (AWS), AFNetworking, UIKit, Swift, Objective-C

iOS Developer

2015 - 2015
Jumpin Labs (via Toptal)
  • Created a fully functional calendar component for an iOS application that allows management of users' Google calendars inside a Geronimo email application.
  • Profiled, fixed bugs, and searched for ways to improve performance.
Technologies: Google Calendar API, Google API, AFNetworking, UIKit, Objective-C

Lead iOS Developer

2011 - 2013
  • Led the development of a cloud-based universal iOS application.
  • Created a login service for multiple social, music, and video services, and cloud drives from an iOS app.
  • Built a way to view and use all of the user content that the user had collected in different services.
Technologies: SkyDrive API, Google Drive API, Dropbox API, Twitter SDK, Facebook SDK, UIKit, Objective-C

It's an easy way to send files between different platforms. Works with iOS, OS X, Android, and Windows. It transfers files and data directly between devices without the need of a server or registration.


Ultimate file manager for iOS. Access, view, and edit your documents from anywhere you want. Total commander for your iPad.

An iOS application for a charitable fundraising platform that enables celebrities and other influential people to fundraise for their favorite causes through the offering of money-can't-buy prize experiences and rewards to their fans and the general public.

An education app for iPad, developed for a San Francisco-based company. The app allows kids in school to send their homework directly to the teacher through their iPad, and the teachers to review the homework on an iPad from their couch.

A universal iOS application that helps users to learn English: more than 4+ million downloads, translated to fourteen languages.

An iPad publishing platform for Mafra, the biggest Czech newspaper publisher.


A universal iOS application that allows you connect to all your social services from one place.

iOS app for collecting, organising and insuring photography/video gear. It’s a free app designed for photographers and videographers of all skill levels who want to make sure their gear is organized and insured.


MacOS app, Beam is all-in-one instant voice, and real-time text chat for modern professionals. Simple workflow, for being more productive, and build better products—faster.


Swift, Objective-C, C++, SQL


UIKit, Cocoa, iOS SDK, CFNetwork, Cocoa Touch, AFNetworking, Core Data, AppKit, CloudKit, React Native, WatchKit, Core Text


Xcode, Git, Sketch, Adobe Photoshop


MacOS, iOS, Apple Watch, OS X, Amazon Web Services (AWS), iCloud, Apple TV


Apps, iPad, Google Drive, User Experience (UX), In-app Purchases


CocoaPods, Dropbox API, Facebook iOS SDK, Parse SDK, WebRTC, iOS Extensions, Facebook SDK, Twitter SDK, Google API, Google Calendar API, Google Drive API, SkyDrive API,


iOS UI Design, UI Design, REST, Agile Software Development



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