Architectures: Clean swift, VIPER, RIB, MVVM, MVP, MVC, VIP.
Programming Languages: Swift, Objective-C, Python.
Networking: URLSession, Alamofire, GraphQL, WebSockets.
Libraries and Frameworks: Combine, ReactiveSwift, PromiseKit, Moya, Kingfisher, RxSwift, Lottie, Firebase, WatchKit, PassKit, CoreML, HomeKit, XMPP.
Payment Gateways: Apple Pay, Stripe, Checkout, TAP, Paypal.
Version Control: Git, Github, Bitbucket, Git submodules, Git LFS.
Testing: XCTest, UI Testing, Quick, Nimble, Snapshot Testing.
Tools: Xcode, Instruments, Testflight, Appstore Connect, Slack, Jira, Figma, Postman, Proxyman.