* Built and led a globally distributed engineering organization of over 70 people * Owned end-to-end product engineering for 2 backend platforms powering 20 web and 17 mobile products * Reduced TTM 11→3 weeks, CFR 15%→0.4% while scaling release velocity 3x * Tech Due Diligence for $18M M\&A deal (getonce.com). Result: asset integrated into SDG, \~$5M/year revenue. * Streamlined the technical requirements approval process, cutting the time from 4 days to 1 day. * Launched 8 new products, expanding the company’s portfolio and increasing market presence. * Reduced L2 Support team size by 50% while maintaining support quality. * Ensured backend processing of over 23k RPS, guaranteeing stability and performance. * Deployed and managed k8s infrastructure on-premise (150+ production servers, 30+ staging), enabling scalable microservices architecture (uptime 99.85%). * Implemented observability stack (DataDog, Zabbix, Grafana) with incident management processes, postmortems, and 24/7 on-call rotation. * Led ML/AI initiatives: deployed content moderation system for tone detection in user communications, built personalization engines for paywalls, partner recommendations, and gift suggestions. * Established A/B testing framework with multiple test groups, driving data-informed product decisions through regular experiment review sessions with Product and Growth teams. * Planned and managed the department budget with 99% accuracy, ensuring financial stability.

As a CTO I am responsible for the strategic technical development of the project. Management of development team consisting of 8 developers and 3 testers, 2 system administrators and support team of 20 people. Interaction with external contractors for the development mobile applications. Only 2 employee work from Moscow office, all other remote workers. Purchase planning and upgrade of the company's servers. Daily work: - follow the developed strategy of technical development of the company and make timely adjustments to it - I conduct daily monitoring of the movement of tasks in the company kanban system - search and hiring of technical staff - interaction with an external contractor for the development mobile applications - collect and analyze business and technical metrics to detect problems - implementing employee development plan Achievements: - implementation of Kanban approach in work - transparency in the development feature life cycle - analysis and refactoring of the current product and optimization - - site acceleration in 2 times (from 400ms to 200ms) tools - xdebug, newrelic - - update search engine sphinx allowed to release 5 of the 8 server, use for search - implementation of clickhouse to collect and process statistical data - implementation of Gitlab CI in the workflow (independent test stands) - go to vuejs Environment / tools: - PHP - the main programming language(symfony 1.4) of all products of the company(in 2018th switched from version 5.6 to 7.2) excellent knowledge of strengths and weaknesses. Know how to look for beautiful solutions and debug difficult and obscure points. For testing we use both phpunit (unit/functional) and Codeception(Selenium) - MySQL is the main database of the project currently using 5.6, the update separates the refusal HandlerSocket'a (up to 2019). Query optimization, table sharding, performance monitoring. - Sphinx is the main search engine on the project. Every day we have to select all users of the service at least 8 suitable. Each selection is unique, as it is based on the unique parameters of psychological testing of each user. - ClickHouse-use to analyze data on mailings (~8 million letters per day), push, messages. Exploring the possibility. - MongoDB - currently no longer used in the company, but a few years ago was the main base for search, but then clearly lacked performance. Now have become in its side again look, but not actively. - RabbitMQ - event queues and the primary data bus between services. - Memcached, Selenium

Functional responsibilities: - management of technical Department - 5 programmer, system administrator and support specialist. - building fail-safe heavy-duty service - expansion of the development team - planning procurement of server equipment - interaction with freelancers - implementing agile development processes and the automation of the process Environment / tools: - PHP7.3 / Laravel 5.1 - MySQL 5.7 - Selenium - Redis, newrelic, memcached, sphinx

Functional responsibilities: - manage the development Department - 12 people - expansion of the development team - implementing agile development processes and the automation of the process - change/optimization architecture projects - interact with team of system administrators and test team Achievements: - the development team of 22 persons - created 6 product teams (from 2 to 7 people in each) - 4 development team is on Kanban (+team of system administrators also moved on Kanban) - JIRA as a Central means of control and monitoring of development - implementation of the process of continuous improvement of the development process and interaction between teams - a fundamental change in the architecture of the project, implementation of Elastic Search, refusal of unstable elements - launched a mobile iOS app https://itunes.apple.com/ru/app/id909017353?mt=8 for clients and https://itunes.apple.com/ru/app/id909020101?mt=8 for professionals

Responsibilities: - management of technical Department - 3 programmer, system administrator and support specialist. - building a fault-tolerant high-load online Dating service - expansion of the development team (if necessary) planning procurement of server equipment - interaction with freelancers Achievements: team: 6 developers(2 remote), 2 testers, 2 system administrator, 20 remote employees support(moderation of user generated content, the answers in the interactive chat, working in OTRS) - enjoys working with freelancers: publishing, mobile apps on iOS and Android ( https://itunes.apple.com/ru/app/id725508998?mt=8 , https://itunes.apple.com/ru/app/id869232758?mt=8 , https://play.google.com/store/apps/details?id=ru.teamo.teamoapp ) - Redmine as a Central means of control and monitoring of development - automation of the development process - merging with the service monamour.ru (complete the merger, only different presentation templates) - increase the number of service from 600 thousand to 10 million unique users - set up monitoring, identifying bottlenecks - working closely with mailings (more than 5 million per day) - implementation of the search algorithm selection (specific service) Sphinx (was previously used MongoDB 1.4) server fleet has increased from 11 up to 24 cars

Responsibilities: - management of technical Department - 5 programmers, 2 system administrator and support specialist. - building a fault-tolerant high-loaded services - expansion of the development team (if necessary) planning procurement of server equipment - interaction with freelancers

Responsibilities: - Design the architecture of the company's services - to develop services - to audit the code developers.