Sergei Firsov

Backend developement (Python)

In my role as a senior software engineer, I drove a project architecture overhaul using DDD and Clean Architecture, improving performance by transitioning to microservices (HTTP/gRPC/RabbitMQ). I optimized code with asyncio and related async tools, increasing service capacity by 20%. I also authored documentation, tests, and set up automated deployment via GitLab CI with Docker and Compose, including advanced networking.

As a software engineer, I focused on stabilizing systems by fixing bugs and reducing technical debt. I successfully migrated the project from Flask to FastAPI to enable seamless integration of asynchronous libraries. Additionally, I built an internal task-tracking bot using a locally deployed Ollama server and custom neural networks, enhancing team efficiency.

Zero-to-hero project management and development. SkyPaws is the mobile app and backend api service, intended to help pilots and cabin crew in their general routine tasks. Application make them able to sync local flight roster with a google calendar service, download flight log in appropriate formats and receive reminders on flight delays

2500+ hours in role of Boeing 737NG First Officer

Owned motorcycle repair shop

RnD + management of project, intended to solve an associated petroleum gas burning problem using microwave discharge.