nestt

Python Backend Developer — High-Load & Async Systems

Backend developer focused on designing, building, and operating high-load services, microservice systems, and full-cycle products in production.

Specializing in asynchronous server-side applications and distributed systems in Python — async pipelines, message queues, caching, and external API integration. Practical experience migrating monolithic systems to service-oriented architectures, with production results reducing CPU utilization from 100% to 6–15% under real load.

Currently building v2hub — a VPN subscription management platform with a FastAPI server core, client SDK, CLI, admin module, and web panel.

Python · C · C++ · SQL

FastAPI · aiogram · AsyncIO
SQLAlchemy 2.0 · Pydantic

PostgreSQL · Redis
Kafka · Redpanda

Docker · Nginx · Linux
Alembic · Git · CI/CD

Prometheus · Grafana
Loki · Grafana Alloy

RBAC · SSRF Protection
HMAC-SHA256

VPN subscription management platform — server core, SDK, CLI, admin module, and web panel as a single system.