For iOS you can not worry.
After restructuring in early 2019 Apple focused on software development, experts of the resource Thinknum. They drew attention to the fact that Apple first opened more jobs for software engineers than for specialists in hardware development.
Thinknum according to statistics, as of the end of February 2019 Apple has become much more jobs for software engineers. Just a few months ago, the situation was different. Apple was looking for a lot more engineers on hardware developments.
Experts attribute the changes with the desire of Apple to greatly improve their software products. In addition, the company is preparing to launch two brand new services: streaming of TV services and news services with a paid subscription. Part of the new specialists will have to work on these new Apple products.
New Apple services should be represented at the presentation on March 25. Also a large number of new software developments from Apple should be expected at the developer conference WWDC 2019, which will begin June 3.