Mikhail Bulgakov Email & Phone Number

London Area, United Kingdom

● Built from scratch an environment in AWS Cloud using Terraform.● Built the automatic deployment process to AWS using GitHub Actions, Docker, Shell and Python for Golang and React services.● Standardized and developed Secrets Management usage inside the code bases and during the Deployment process.● Designed and standardized communication between backend API and frontend client.● Contributing to both code bases - backend (Golang, Python) and frontend (React) as well as custom scripts development using Python.

Moscow, Russia

● Designed a splitting of monolithic legacy Golang service into 13 microservices which improved the response time from 1.5 seconds and 100 RPS to 100 ms and up to 3,000 RPS.● Designed a transformation of services communication method from direct handlers requests to via Kafka topics.● Led a huge PostgreSQL database (3 TB) partial sharding with 10 shards which made it possible to increase count of daily actions from 10.000 to more than 2.000.000 without performance leaks.● Solved Frontend service's traffic leaks by redesign deployment method using Ceph versioning and CDN caching.● Integrated a stress testing system for Golang microservices which made it possible to remove dozens ofbottlenecks and increase the performance.

Moscow, Russia

● Built the deployment process automation for iOS and Android mobile applications which decreased theweekly deployment time from 4-8 hours to minutes.● Managed the Backlog of the team, Stakeholders and external communications.

London Area, United Kingdom

● Built release cycle and deployment process for Mobile Web platform which decreased the amount of used servers from 42 to 6 and reduced the deployment time from 30-60 minutes to around 20 seconds.● Standardized the iOS and Android applications deployment with up to 9 applications in both Google Play and App Store with translations to up to 42 languages including text and graphic assets.

Moscow, Russia

● Led a 2 times per day deployment readiness process including tasks tracking, monitoring, logs checking and communication between involved departments.● Led a testing the integration of Badoo to Social Network applications.

Moscow, Russia

● Tested the Web platform (backend and frontend) including regression, integration and end-to-end tests.● Programmed dozens Selenium autotests in PHP using PHPUnit, JavaScript and Webdriver.