Vlad Guriev

• Performed a complete refactoring of the initial codebase, making it easier to maintain and increasing feature delivery by 3x. • Participated in creating an FAQ on testing purchases for the support team, which decreased the number of such requests by up to 40%. • Wrote a series of articles about in-app purchases in the Play Market, which generated 35% of all organic traffic on the website.

• Increased the rating of the Avatarify app by 50%, from 3.0 to 4.5+. • Implemented new functionality and 2 previously iOS-only features, resulting in a 10x userbase growth. • Fixed critical bugs that previously compromised the user experience and thus decreased churn rate by 60%. • Developed the Lambada app from scratch, including designing the app architecture and conducting thorough research on 5+ different 3D engines to select the most suitable option.

• Performed a complete refactoring of the initial codebase, making it easier to maintain and increasing feature delivery by 3x. • Participated in creating an FAQ on testing purchases for the support team, which decreased the number of such requests by up to 40%. • Wrote a series of articles about in-app purchases in the Play Market, which generated 35% of all organic traffic on the website.

• Implemented a feature to support multiple themes and change them 'on the fly', leading to a 15% increase in positive user reviews. • Created an internal logging library to streamline the work of testers, enabling other team members to identify the sources of bugs up to 2.5x faster. • Developed the 'stock' app from scratch, designed the app architecture and network layer using WebSocket, and wrote technical documentation that decreased onboarding time of new members by 2x.

• Completed a significant migration during the integration with Yandex's equivalent service, which increased daily active users (DAU) by 45%.

• Developed new features and integrated Kotlin into the main app, increasing development speed by 30%. • Developed the PROSTO app based on TheQuestion core. TheQuestion: Android client for TheQuestion (the equivalent of Quora in the CIS region; the service has been acquired by Yandex) PROSTO: Corporate application for TheQuestion partnership with Burger King