Moved app from Volley to Retrofit, added Architecture Components, parts of Clean architecture and possibility to test business features. At the same time increased crash-free sessions from 87% to 99.5%. Rewrote major features (like bag/checkout) from scratch. Developer of the most complex and critical parts of the project. My main duties are support of app growth, resolving of main technical issues, new features design and introduction of new approaches to team.

Working onsite in the San Francisco office. Designer and driver of application rewrite. Worked on application design with the support of Instant App/ modularization, business changes and parallel work by hundreds of developers. Trained team to gain new approaches.

I worked on the application architecture, mainly main features. Junior mentoring was also a part of daily routine. I took part in backend development (app engine), worked on some mathematical and algorithmic problems. I worked with OpenGL ES, Realm, Priority Jobqueue and EventBus a lot. I have experience in development of custom views, material design implementation and custom RecyclerVIew adapters.

My responsibilities included the development and improvement of various applications on Android. Most of the time I worked on an app for taxi drivers. I improved the application in terms of performance and efficiency