architecture design and implementation of the internal admin panel of the Check service- improved the work of the service support service, reduced the response time by more than 6 times- accelerated the SLA for connecting new restaurants from 3 weeks to 1 day, which increased the number of new customers by more than 7 times- automation of routine tasks - saving 20% of the time of one developerintegration with various systems via API (both internal and external, for example, a printing contractor)process automation: automatic generation and distribution of xlsx reports:- reduced the load on the support service and accounting department- implemented the main requirement of a major partner , which led to its connection to the servicementoring, onboarding and training new employeesconducting technical interviews

design and implementation of tips service architecture, migration from monolith to distributed microservice architecture- implemented a payment API and carried out integration with various payment systems, incl. Apple Pay, Google Pay, Yandex Pay, SBP, which improved user experience and increased service conversion- migration of the user base and implementation of a new functionality of the user's personal account, which improved the application interface and increased the number of active users of the service redesigned the grading system in the web version of the Yandex Eats service:- made it possible to conduct A / B tests - improved user experience when working with service supportmigration of the code base of the startup Simple Tips to the internal cloud of the company:- made it possible to refuse external hosting (both applications and balancers)- improved the stability of the service (migration from a hardware hosting to cloud solution)assistance to analysts, optimization of scripts for data calculations: reduction of execution time from 6 to 1.5 hours

- Developed web service for docx documentation generation which saved developers from the need to format documentation according to government standards- Developed a system for automating testing of the compiler / program model of the CPU / real devices which increased the quality of software developed and manufactured microcircuits- Configured and automated CI/CD processes in the company, which made it possible to set up automatic testing, assembly and software releases (Jenkins, docker, docker-compose, KVM, Gitlab)