Restructured legacy code base into polylith monorepo with clean architecture and using DDD concepts. The code base is split into shared components and utilized IOC containers and DI for modules' dependency management. Implemented new product features and domains. Implemented event-driven architecture and event bus for various events processing. Created full CI/CD for the monorepo, using Gitab CI with dowstream pipelines for microservices, helm for kubernetes charts generation, configured review stands for merge requests, and configured danger.systems bot to enhance review process. Stack: Python, FastAPI, SQLAlchemy, RabbitMQ, Kafka, Gitlab CI, Kubernetes, Helm, PostgreSQL, Redis, granian, dishka

Development of microservices on FastAPI. Refactoring legacy code bases using SOLID and best practices. Separate code base into modules to be reused in all projects. Optimizing workflow by introducing monorepository and dependency management through Poetry. Improving code quality by introducing linters (ruff) and forcing type annotation (pyright/mypy). Stack: Python, FastAPI, SQLAlchemy 2.0+, alembic, PostgreSQL, SQLite, Redis, Opentelemetry (jaeger), httpx, aiohttp, pydantic, pytest, pyright, mypy, Poetry.

Developing identity protocol on Ethereum compatible blockchain. Implementing peer-to-peer overlay network for blockchain protocol. Integration with FaceTec for face recognition and implementing mechanisms for client identification on blockchain. Stack: Python, FastAPI, MongoDB, IPv8, Solidity.

Development of asynchronous microservices (FastApi/Starlette), working with DBs (Postgresql, Sqlalchemy, TortoiseORM, Asyncpg), message brokers (rabbitmq + aio_pika, Kafka + Faust) Development of high load web parsers (httpx, aiohttp, bs) Highload parsing of the blockchain data (Solana + solana-py, solana web3.js, ethereum). Development of the decentralized blockchain NFT marketplace (javascript + typescript, node.js + express, solana web3.js + metaplex) Python services optimisation (multiprocessing, multithreading, c-python extensions, asyncio) Architecturing and development of distributed ddos protection system with geographical load-balancing and optimal path reverse proxying to the origin. Stack: Node.js (Nest.js) - backend server management system. Ansible + Molecule + Vagrant + Python + Docker - server deployment and CI/CD. Nginx + Lua (Openresty) - edge server's stack (L7 ddos protection, antibot system, CDN geo distributed system with optimal routing to origin). PowerDNS + TS (Fastify) - edge dns server stack (point client to closest server). Logging: vector (collection), loki (logs aggregation), influxdb (metrics), grafana (visualization). Utility: PostgreSQL, Rabbitmq, Redis. Little bit of frontend on React. Worked on DDoS mitigation service using eBPF + XDP + bcc. Integration of ML model into this pipeline. Have experience with Linux kernel and C.

Разработка бэкенда на python (Django, DRF, Flask), php (WordPress) Разработка парсеров на python Вёрстка (html/css, sass/js).

Работа с python (django/flask), работа с базами данных.