Jin Um

San Jose, CA

ac3knq@r.postjobfree.com

Authorized to work in the US for any employer

Work Experience

iOS Developer

Self Employed

July 2017 to August 2017

Lingrape is a platform that language learners can learn foreign languages more fun.

• Designed and built the app to solve language learner's problems.

• Implemented Photo Sharing, Chat, Video Recording / Sharing, SpeechRecognition, Map, Search/Filter, Profile, Follow/Report features.

• Handled photo sharing features and camera features with UIPickerViewController.

• Implemented custom camera session for video recording and speech recognition to display text.

• Extensive experience with Firebase DB / Firebase Cloud handling.

• Handled image data with JPEGcompression and stored the data in Cloud Storage.

• Strong knowledge in implementing frameworks like CoreLocation, CoreGraphics, MapKit and UIKit, Frameworks.

• Hardcoded UI programmatically and setting Constraints with NSLayoutConstraint and NSLayoutAnchor for the readable code and AutoLayout.

• Added animation between UIViews for smooth transitioning and better user experience.

• Implemented Social Login Features such as Google, Facebook, Twitter for User experience.

• Experienced with cache image data.

• Debugged and fixed lots of additional trivial problems.

• Created of push notifications with Firebase Cloud Functions(Beta) in Javascript for HTTPS requests.

• Updated for iOS 11 and iPhone X.

iOS Developer

Self Employed

BombList is a simple task manager app with the deadline for productivity.

• Designed and Developed the app

• Implemented Core Data for persistent storage of user data.

• Implemented side menu, social account connection, and deadline features.

• Objective-C Open Source Library, Objective-C header file integration.

• Custom UI implemented (drawing bomb) with UIBezierPath. iOS Developer

Self Employed

Archer AR is an Augmented Reality Archery Game.

• Designed and Developed entire app based on SceneKit and ARkit

• Created custom 3D Models and Planes.

• Strong knowledge of SCNPhysicsBody and Collisions for Contact Delegate

• Added sounds with AVFoundation, handling an audio file with AVAudioPlayer and added custom fonts for better user experience.

Education

BS in Management of Information Systmes

University of Ulsan

Additional Information

SKILLS

iOS*, Swift*, Javascript, NodeJS, CSS/HTML, Java, C++. IDE/Tools: XCode, Eclipse, Interface Builder, Storyboards. Design Tools: Sketch

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