-Design and build applications for Apple devices on the iOS platform. -Maintain quality and ensure responsiveness of applications. -Collaborate with the rest of the engineering team to design and launch new features. -Maintain code integrity and organization. -Proficient with Objective-C, Swift and Cocoa Touch. -Experience with iOS frameworks such as Core Data, Core Animation, as well as offline storage, threading, and performance tuning -Familiar with RESTful APIs to connect iOS applications to back-end services. -Experience with performance and memory tuning with tools such as Instruments and Shark. -Experience with cloud message APIs and usage of push notifications. -Knowledge of code versioning tools such as Git, Mercurial and SVN.