
Hi 👋🏻 I'm László.
An iOS developer with more than 10 years of experience designing, building and maintaining mobile apps for startups, international companies and my own indie projects. I work in Swift, SwiftUI and Objective-C with deep knowledge of the iOS frameworks and app architecture — system optimization, modularization and product lifecycle. I enjoy mentoring junior developers, working with cross-functional teams, and translating technical solutions for technical and non-technical audiences alike.
Experience
Senior iOS Developer
Dec 2022 – Mar 2025Teleprompter Kft.
- Restructured and modernized a large legacy codebase while keeping compatibility across many device and OS generations.
- Ported several apps to native macOS, with platform-specific features and interfaces.
- Redesigned the architecture around SwiftUI and Combine — cutting boilerplate and breaking up overgrown components.
- Built new VIPER submodules and collaborated across international teams through code review and pull requests.
Indie App Developer
Since 2017Self-employed · Since 2017
- Image-manipulation apps built with CoreML, CoreImage and the Vision framework.
- Repackaged my own frameworks as Swift Package Manager modules with Bitrise CI.
- iOS app extensions using shared containers and iCloud-synced data.
- Continuously adopt new Apple frameworks and beta APIs to keep products future-ready.
Lead iOS Developer
Apr 2018 – Mar 2021beam.space Kft.
- Mentored junior developers and led architectural decisions for cross-platform interoperability.
- Built real-time AR scenes with on-demand model and texture fetching against complex data models.
- Optimized CPU and memory for multiple 2K streams feeding Metal shaders, keeping older iPads responsive.
- Kept data consistent between native ARKit / SceneKit / OpenCV / Metal and a React Native UI.
Freelance iOS Developer
Mar 2017 – Jan 2018laszlotuss.com
- Rewrote the Italian Food travel guide (Blue Guides) with a shared iOS, macOS and watchOS interface.
- Delivered an Arizona-based real-estate app and mentored smaller in-house projects.
- Contributed to an internal tool for McKinsey, and launched my first App Store app under my own name.
iOS Developer & Co-owner
Sep 2012 – Nov 2016Tappointment Kft.
- Co-founded the startup and drove the mobile product from idea to App Store launch.
- Designed a scalable iOS architecture for appointment-scheduling systems.
- Shipped customer apps and internal tools, including Philips Hue control (HUE Power) and offline navigation (Blazing Saddles SF).
Skills
- Languages
- Swift, SwiftUI, Objective-C, Python, TypeScript (React Native)
- Architecture
- MVVM, MVC, VIPER, modularization
- Data
- Core Data, Realm, Firebase, CloudKit, iCloud, MySQL
- Tooling
- Xcode Cloud, Bitrise, SPM, CocoaPods, Git, SwiftLint, SwiftFormat, Instruments
- Design
- Figma, Sketch, Affinity Designer, Photoshop
- Process
- Scrum, Kanban, Jira, Trello, Notion, Basecamp
Education
Computer Science
Eötvös Loránd University — Faculty of Informatics, Budapest
2012 – 2018Software Developer
BMSZC Petrik Lajos Technical School, Budapest
2011 – 2012Languages
Hungarian (native) · English (B2)