Verified Expert in Engineering
As a user experience enthusiast, Zoltan's greatest strength as an engineer is his precise design implementation. He has a positive attitude and an open mindset that enable him to bring the best quality projects to life. Zoltan's experience in maintaining a relationship with customers and managing team workflow help him to provide the best overall value to his team.
GitHub, Interface Builder, Swift, Xcode
The most amazing...
...feeling was receiving written consent from NASA to publish my pet project, Apollo Archive to the iTunes App Store.
PetrolPrices.com Ltd (via Toptal)
- Created a pixel perfect design implementation that scales well on all iPhone devices for new features.
- Identified performance issues causing high network consumption and fixed them.
- Created reusable components in Swift, merged it in the Objective-C based environment.
- Simplified the app by removing unused features, merging menu items together, adding an in-app web browser, and improving the on-boarding flow.
Kalon Creative (via Toptal)
- Upgraded an existing iOS app from Swift 1.2 to Swift 3.
- Replaced deprecated function calls with their newest versions.
- Added minor changes requested by the client.
- Versioned the source code in each step of the upgrade process under separate branches using git.
Senior iOS Developer
Perchwell (via Toptal)
- Created a pixel perfect design implementation that scales well on all iPhone devices.
- Identified performance issues causing choppiness in the user experience and fixed them.
- Optimized memory and CPU time management.
- Implemented complex data visualization using 15+ different chart types.
Lead iOS Developer
Red Steed Studios
- Learned how to divide projects into tangible tasks and how to simplify and execute these projects while allowing space for changes.
- Used several third party services, such as Facebook, Google, Imgur, Amazon S3, Branch.io, etc.
- Took part in projects actively as a Developer and as a Development Team Leader.
- Worked as a Full-stack Developer.
- Maintained a relationship with clients.
- Managed project requirements such as design, implementation, testing, and follow-up.
- Developed an iOS application with its PHP based back-end for a coffee shop.
- Created an application for mechanical watch owners to keep track of their device's accuracy and set their time using atomic clocks.
- Implemented clinical research applications to find lung and liver cancer in CT images.
- Improved the speed of a tumor searching algorithm by 90%.
- Became co-author of a worldwide patented workflow for finding tumors in the liver organ in CT images.
- Created and implemented an algorithm for better visualizing cancerous areas in the lung area in CT images.
With this app, I wasn't exclusively the developer, however I did the UI/UX design myself. My goal was to gain first-hand experience with product development from ideation to production, and to become familiar with all aspects of a product's lifecycle.
PetrolPrices (via Toptal)https://itunes.apple.com/gb/app/petrolprices.com/id1103318574?mt=8
NYC Apartments by Perchwell (via Toptal)https://apps.apple.com/us/app/nyc-real-estate-by-perchwell/id1090535139
My First International Presentation Session at iOSDevUK
Core Location, Core Data, ZURB Foundation, UIKit
Mapbox iOS SDK, Google Maps SDK, REST APIs, Core Animation, Fabric, Flickr API, Google Maps Premium Roads API, Firebase Web SDK, iOS Charts, Facebook iOS SDK, Alamofire, SDWebImage, SnapKit, Facebook API
Auto Layout, Git, Sketch, Interface Builder, Fastlane, Crashlytics, Xcode, GitHub, Pivotal Tracker, Adobe Illustrator, Adobe Photoshop
RESTful Development, Responsive Development, Agile Software Development, REST
Back4App, Parse, iOS, Firebase, Drupal, Mixpanel
Pixel Perfect, User Experience (UX), User Interface (UI), 3D Image Processing, Medical Imaging, Image Processing, Network Time Protocol (NTP), Location Services, Transport Layer Security (TLS), Web Technologies, Storyboarding, Presentations, Protocol Buffers
Various Certificates in Aerospace Engineering
MIT, ESA - Online
Master's Degree in Computer Engineering and Image Processing (unfinished)
University of Szeged - Szeged, Hungary
Bachelor's Degree in Computer Engineering
University of Szeged - Szeged, Hungary