Interactive math app for children between the ages of 6 and 11 to learn math in the game format by playing fun educational games. My duties, in addition to the development and deployment of the application, included discussing the requirements with BA and designer to find the fastest solution. The main goal was to develop a quality product with the possibility of easy extension in the future. I used the MVVM architecture in conjunction with the relatively new SwiftUI technology to solve it. The success of the project depended on the choice of payment model and the ability to edit it on “the fly”. The RevenueCat framework was used as tool to allowed us to manage, and optimize in-app subscriptions. The project has been successfully launched in the AppStore and its development is planned.

It was an implementation of a secure mobile version of the bank app. Here is a list of features that I worked on: • user profiles; • authentication and authorization; • payments, templates, autopay; • QR; • payment card scanning; • maps support.

Pay-TV is a solution for one of the biggest Russian mobile operators that streams VOD, Catch-up, Live content to iPhone, iPad, and Apple TV. My responsibilities included designing the application architecture from its inception, developing shared reusable parts for both platforms (iOS and tvOS), setting up the build and delivery processes of IPA archives for customers and the QA team. I set the following criteria for myself in designing this application’s architecture: ease of reuse, reduction of unnecessary complexity in making changes to standard components, and the speed of the project’s build processes. To do this, in one workspace, I created two separate projects for each platform, where each of the projects referred to the targets of reused modules (network layer, payment service, player, etc.) Here is the list of features that I implemented: • playback VOD, Catch-up, Live, and Timeshift; • payments through in-app purchases; • payments through an operator payment system; • highly interactive interface - EPG, rails; • cross-platform support; • downloads to go. Jenkins, with pre-installed Xcode plug-in, was used for CI. The project worked within three different environments Dev, Pre-Prod, and Prod. The release and build process was fully configured externally using environment parameters for each job.

Speed Tracker is a combination of GPS speedometer and Trip computer. The app helps with gathering all the necessary trip statistics like speed, time, distance, heading, elevation, and more. When I joined the project, it had already had a legacy iOS version written on Objective C. My task was to implement a watch version using Swift in a short time. The solution was to add a watch extension to the main mobile app. The watch version included the migration of Objective C to Swift code files. All the business logic remained in the main project. I wrote an adapter that converted the data into the form required by the extension.

An easy to use iOS app designed to broadcast live events via Facebook Live. Supported by the Twilio platform, the app comes with features including seamless Facebook account integration and authentication, hassle free broadcast creation, and management, live video streaming using the device camera, online chat, push notifications, and more. It was a start-up project, and the team was distributed across several countries. I was responsible for the iOS part, including the design of the architecture, development, testing, and the final delivery to the AppStore. The main technical challenge on the project was the choice of iOS wrappers over WebRTC (AppRTC, Kurento, Twilio). My goal was to prepare a standard interface for interacting with various implementations of iOS WebRTC. It would make it possible to check the stability of libraries under various stress conditions quickly. This was achieved by splitting the WebRTC implementations into different targets shielded by one interface in the code.

Application for journey planning. It allows users to plan train, bus, and tram trips. The application analyzes every day user activities, identifies users’ home and work locations, and suggests tomorrow’s commutes depending on the user’s weekly schedule. It allows the user to receive weather forecasts and notifies about adverse weather conditions along the way. Here I worked on almost all parts of the application and successfully delivered it to the AppStore.

A solution for Pay-TV operators and telcos that streams live channels to iOS and Android devices. The application has a user-friendly and highly interactive interface that includes a video player, channel list, EPG, and catch-up TV. Here I developed this application from scratch in a small team of developers.

MAN-MOBI, Manheim corporate application that provides the customers a convenient interface to inform about the company’s activities. It includes an embedded news feed reader, a database with the company’s centers, including the detailed information about all of them. I was a key developer on the project and delivered it to the AppStore.

The K12Rewards is an Education-based rewards app with a standard feature set such as an ability for users to view their account balances, shop on mobile sites (with rewards recorded), to purchase and redeem daily deals, donate to causes, to earn non-shopping rewards and watch videos. Also, it is capable of serving ads for sponsors. I developed this application from scratch in a small team of iOS engineers.

Thinkstock is an application that allows its users to explore, manage, and share stock photos provided by Getty Images. Also, the application enables the user to perform a keyword search for images, to filter search results by specific options, to create galleries of images (called lightboxes), to distinguish assets in the collection, and to share them with friends. The application is optimized for viewing high-resolution assets on retina displays. I developed this application from scratch in a small team of iOS engineers.