● Developed custom script execution functionality for cross-platform AI agent. ● Created modules: primary initialization of DEXs and currency pairs for a trading bot trading cryptocurrencies, as well as a block analytics module for detecting the behavior of other bots.

● Designed the system architecture of a geo-distributed cloud platform of 6 microservices with the application of industry best practices, OLTP and OLAP databases and message queues, ensuring a quick start of the project. ● Unified configuration and tech. microservices design by unifying the codebase and simplifying the CI/CD setup process, which reduced the team’s ongoing labor costs and further support and development of the project’s codebase. ● Cleared over 16 thousand lines of team member code, preventing a significant number of potential problems and risks from occurring tech. debt. ● Set up workflows in a team of 8 from scratch, enabling increased work efficiency, resource planning, and a colossal acceleration of team productivity, resulting in two months ahead of MVP delivery deadlines.

● The company is engaged in custom development, as well as has its own platform for creating websites (competitor SoftSwiss). ● Developed a microservice system architecture with 6 microservices, databases and message queues, ensuring quick project start-up. ● Unified CI / CD configuration of microservices, reducing maintenance effort by up to 25%. ● Implemented 2 highly loaded microservices on Rust, saving up to 5000-7000 euros per month on hardware. ● Reviewed over 15,000 lines of code, preventing a significant number of issues. ● Set up workflows in a team of 8 people from scratch, speeding up tasks from a year and a half to two months.

● An advertising network providing first-class monetization and media buying solutions for advertisers and publishers (PropellerAds competitor). ● Implemented authorization service, increasing system security by 3 times and identifying critical issues. ● Rewrote an old monolithic service using Python asyncio and FastAPI, improving performance and reducing maintenance effort by 3 times and speeding up development by 4 times. ● Realized the migration of part of the system from Python to Rust, improving performance 30k times and saving up to 19000 € per month on hardware. ● Optimized the technical team's legacy business processes, simplifying workflow and accelerating new feature development by 25%. ● Implemented technical documentation practices, increasing onboarding efficiency of new hires by 3x.

● Is one of the leading airlines operating passenger and cargo flights in Russia and abroad (competitor of AirFrance, Lufthansa) ● Implemented best practices and tools in microservices, improving dependency management and unit testing. ● Prepared microservices for Kubernetes, improving scalability. ● Implemented "strict contracts" on the backend, reducing frontend issues by 3x. ● Improved logging of microservices, doubling the efficiency of their maintenance. ● Implemented asynchronous communication between microservices via message queue, increasing system throughput in some parts up to 3 times.

● Russia's largest telco provider of digital services. Provides broadband Internet access, interactive television, cellular communications, local and long-distance telephone services, etc. (competitor of Deutsche Telekom, Orange, Telefonica). ● Implemented business functionality in 9 microservices, writing more than 4000 lines of code and developed 6 new microservices, increasing the functionality of the system. ● Accelerated site search using ElasticSearch, increasing its performance by 6 times. ● Refactored 3 old microservices, switching them to asynchronous execution, which accelerated performance by 45% and reduced maintenance costs by 25%.