Position: iOS Developer
Category: iOS
English level: upper
Years of experience: 5

No rocket science, unfortunately. But if I have to choose then it is providing OpenGL solution for video playback of raw rgb data instead of using high level AVFoundation API because of performance. 
But in general everything pretty straightforward as for client-server applications.
Hi! My name is Oleg and I'm an iOS developer. I've participated in development of dozen iOS apps from simple to complex in different fields (retail, e-commerce, social media, multimedia). I have experience as solo iOS developer as well as a team member of a team with 10+ developers for product(iOS, tvOS) with hundreds of thousands users. So I'm familiar with full cycle development process from scratch to the app store. Besides coding I also participated in code review, participated in the discussion of the requirements with business owners and collaborated with another teams.
Looking for a company where I can continue to grow up as an iOS developer, working on interesting projects in an open minded team.
Would be great to use Combine, SwiftUI, modularisation with Swift Package Manager, Swift concurrency (async/await)