Position: Senior iOS Developer / Lead
Category: iOS
English level: upper
Years of experience: 9

Custom collection views
Massive refactoring
SDK implementation
Unit tests integration & coverage 
Have experience in Express JS and deploying sample API to Heroku
SpriteKit proficient (written & published game in the AppStore)

for examples and detailed description ask in DM.
Various projects: health and fitness (b2b & b2c), social networking, entertainment, car service, etc. On previous project I had these responsibilities:
- refactor old code from MVC to MVVM 
- suggest and implement new approaches while creating features 
- integrate unit tests and cover refactored code
Created separate framework (SDK) for a part of functionality.
Swift, no ObjC or a minimum (minor updates/fixes)