Languages
Objective-C, Swift, XML, CSS, HTML, JavaScript, SQL, C++
Libraries/APIs
Node.js, CocoaPods, RxSwift, Codable, RxCocoa, SnapKit, Alamofire, Kingfisher, SDWebImage, REST APIs, Microsoft Foundation Class Library (MFC), WinAPI
Tools
Auto Layout, Zeplin, Sketch, SwiftLint, SwiftGen, SmartGit, Xcode, Fastlane, Jira, GitHub, Bitbucket, Trello, cURL Command Line Tool, Photoshop CC, Git, Jenkins, Postman, Subversion (SVN)
Paradigms
Reactive Programming, REST, Concurrent Programming, Object-oriented Programming (OOP), Protocol-Oriented Programming, Agile, Test-driven Development (TDD), Unit Testing
Other
Code Review, Debugging, AVFoundation, Memory Profiling, UI Testing, Task Management