Developed a back-end for a mobile app.Created a web server to upload a large number of video files. Currently, it handles uploads of 60 thousand files per day.Integrated a video encoding service with the main API service using REST API and distributed queues. Created a service for real-time messages using WebSockets from scratch. This service is used to deliver messages from all microservices directly to user devices.Created a python library to create asynchronous distributed systems. It is used by many internal microservices to handle heavy tasks. Created a working prototype of a service to upscale videos using neural networks. It uses ESPCN network to upscale videos and ffmpeg filters to increase the overall quality. Initialized integration of the Opentelemetry in all existing services. This integration decreased overall defect turnaround time for back-end services.

Presold, estimated costs, designed architecture, and shipped several projects: a system for financial accounting to process financial reports and a service to manage servers and services for a Russian bank’s internal use.Designed and led an intern training program, which resulted in two full time hires. Interviewed candidates for middle and junior Python developer roles.Developed an asynchronous high-load proxy-service in Python Аiohttp that integrates face recognition service with a video streaming service. The project gathers all the data and returns it in JSON format. Implemented a statistics gathering service in Python Django for one of the biggest jewellery stores in Russia.Created security training demo application in Rust Rocket, which covers about 20 different types of vulnerabilities and methods of protection.Developed an AWS based forecast notification system, using Terraform for infrastructure management and Rust for AWS lambdas.

Developed several Jenkins plugins and a test system for Jenkins plugins from scratch using Python to reduce the testing time for plugins from 2 days to 15 minutes. Wrote a simple DSL to generate tests. The test engine parses a DSL, runs tests, and generates HTML reports.