Виталий Рубанов

Python / Backend Developer | Advanced Telegram Bots | Web Scraping & API | AI Integrations

About Me:

Hi! I am a Python Backend Developer with a strong focus on building robust architectures, automating business processes, and developing high-load Telegram bots.

I don't just write code blindly from a spec sheet; I dive deep into your business logic. My goal is to deliver a stable product that runs 24/7, scales seamlessly, and doesn't require constant firefighting. I write clean, asynchronous code and deliver fully containerized projects (Docker), ready to be deployed directly to your server.

Core Expertise:

Advanced Telegram Bots (aiogram 3): From simple sales funnels and payment gateway integrations (Telegram Payments API) to complex services featuring geolocation (MapLibre, OSRM), Role-Based Access Control (RBAC), and deep database integrations.

Backend & REST APIs (FastAPI): Designing fast and secure microservices, and developing APIs for frontend and mobile applications. Implementing JWT authentication and seamless third-party service integrations.

Web Scraping & Data Extraction: Harvesting data from websites, marketplaces, and closed platforms. Confident in bypassing anti-bot protections (Cloudflare), browser emulation (Selenium, undetected chromedriver), asynchronous scraping (aiohttp), and exporting data to convenient formats (Excel, DB, JSON).

AI Agents & LLM Integration: Embedding neural networks (OpenAI, Gemini, Claude) into your workflows: content analysis, smart customer support chatbots, structured data extraction, and routine automation.

ETL & Automation: Building robust data processing pipelines (Celery, Redis) and automating complex report generation.

Tech Stack:

Languages: Python 3.11+, SQL, basic JavaScript/TypeScript, HTML/CSS.

Frameworks & Libraries: FastAPI, aiogram 3.x, Pydantic, SQLAlchemy 2.0 (async).

Databases: PostgreSQL (asyncpg), Redis.

Infrastructure & CI/CD: Docker, Docker Compose, Nginx, Linux (Ubuntu), Git (GitHub/GitLab Actions).

Why work with me?

1 Transparency: I am consistently in touch. You will never experience a situation where your developer disappears for a week.

2 Clean Code: I enforce strict Type Hints, use linters, and cover critical functionality with tests (pytest). Your future developers won't cry while reading my code.

3 Turnkey Delivery: You receive more than just a folder of scripts. I deliver a fully deployed product with clear documentation (README) and configured log monitoring.