X5 Group (https://www.x5.ru/en/) is the biggest grocery retailer in Russia. Its delivery department is serving more than 90000 orders dailyAs a CTO I was a tech partner for CPO with a focus on team hiring, structure and delivery processes, architecture refinement, implementation of devops and SRE practices and overall engineering culture.Achievements:* Expanded engineering team from 8 to 35 people* Defined technological strategy and hiring plan aligned with product roadmap* Refined product engineering teams structure* Successfully migrated to the new cloud infrastructure to support business growth from 2000 to 90000 orders per day* Designed and implemented a comprehensive metrics system for infrastructure, applications and business observability* Reviewed and documented current architecture* Introduced incident management which led to 5x faster times of incident reaction and resolution* Increased overall service availability from 95% to 99.5%

Algorithmics is the international programming and math school for children teaching more than 300000 students in 55 countries.As a CTO I was responsible for creating technology strategy, budget and hiring plan, building product-oriented and agile driven software development processes, hiring and managing 6 engineering teams of 30 people, developing quality and stability of technological platform and running new technological initiatives.Achievements:* Expanded development team from 7 to 30+ people* Designed new organizational structure of product & IT department* Designed clear and functioning planning pipeline and agile development processes * Highly increased quality and stability of IT-platform* Launched (in 3 weeks) own video conferencing platform for more than 4000 simultaneous users* Designed and launched unified, distributed and robust content cloud storage solution for terabytes of user data* Simplified infrastructure and scaled it 10 times (up to 1000 RPS) to support ongoing and future business growth

Lamoda is a fashion e-commerce, part of Rocket Internet family, worldwide #3 e-commerce giant.As an Engineering Director of Client-side I was responsible for hiring and managing three teams of 22 people: 2 front-end and 1 mobile development, budgeting and resource planning, design of development processes and high-level technology managementAchievements:* One of the lowest turnover rate in teams in IT department* Led transformation to product teams* Designed and implemented performance review model and process* Smooth run of three complex refactoring projects* Played one of the leading roles in building the technical brand of Lamoda. See https://tech.lamoda.ru

As an Engineering Manager of Mobile Products I was responsible for architectural design and implementation for Lamoda mobile apps (Android & iOS), running of development infrastructure, aligning between different teams, hiring and managing a team of 6 engineers.Lamoda android app was recognized as Best App of the Year in 2014.

Leading team of three mobile developers, creating Russia’s leading entertainment apps: Afisha, Afisha.Mir, Afisha.Eda, Afisha.Wine, Best In Moscow.Afisha apps were recognized as Best Apps of the Year in 2013 by both Apple and Google.Achievements:* 3 Android apps made from scratch: Afisha, Afisha.Mir, Afisha.Eda* 5 iOS apps - architecture and technical management: Afisha, Afisha.Mir, Afisha.Eda, Afisha.Wine and Best in Moscow