Hi, I'm Kostia, and my work as an iOS developer has grown out of my passion for building reliable, yet flexible and intuitive apps. Each app, even the simplest one, is a system. And I love being entrusted with the task of making this system as top-notch as I possibly can! I have previously worked with C, Lisp and Java, but in the last 5 years I have concentrated on Objective-C. Two years ago I have started writing in Swift as well. I have worked mostly with clients from the US, Canada and EU, and we have successfully released dozens of apps to Apple App Store together.