Position: Middle iOS developer
Category: iOS
English level: intermediate
Years of experience: 7

My own app MyWindsurf had been in TOP-100 applications for Sport twice.
Full-stack development own applications for iPhone & iPad since 2014. 
Member of Apple iOS Development program.

The first application was published in the AppStore in 2014. In 2015, he wrote an application in the SPORT category and got into the top 100 twice.  Gradually taught and implemented various technologies to expand the functionality.  Added an Apple Watch, integrated track files from external Garmin devices, made a converter and import of files of various formats with data on athletes' training, wrote speedometers, players, synchronized tracks between team members through a public iCloud container, worked with built-in iPhone sensors with a compass and  accelerometer, for example, to measure the height of jumps.
 Introduced external weather services to notify about the weather forecast suitable for training with notifications.  Implemented communication with external devices via FTP and Telnet, wrote decoders, plug-in installers and editors for set-top boxes.  Wrote IPTV online players, worked with TvOS.  Worked with multi-threaded processing of large amounts of data, with complex CoreData data models.
 Worked as part of a team in a car rental app project.  Also worked in a team on a VPN project (GIT, Viper, Agile, Slack).

 I have my applications in the AppStore and an Apple developer license for the 10th year in a row.  Took a 2-year break from iOS development in 2020-2021, as he worked as a Siemens industrial programmer at Roshen factories.