The first step was a phone interview, which was an hour long. After that, they sent me a coding exercise, which I developed in 5 hours. I thought doing it in a short time would be a plus point, which was my biggest mistake.

The app was to create a weather application using Swift and MVC. I used different Swift features to show my language capabilities and some tests as well. I wrote tests of different types, like testing a simple method, testing an async method, and testing with stubs (to save some time).

They liked the following things:

• Good separation of concerns
• Well-documented code
• Look and feel of the app
• Some passing tests implemented
• Swift 2.0 error handling

They said the following things could be improved:

1. Test coverage
2. More use of compiler features
3. View controller methods are long and should be broken down.

Technical questions about iOS, Swift, Core Data, JSON Parsing, testing, etc.