Full-Stack Developer from Ukraine. Telegram bots for millions, enterprise AI for business.
10+ years shipping production code. 150+ projects. 40+ Telegram bots.
Telegram Platform — bots, Mini Apps, MTProto integrations. From side projects to products with 800K+ MAU.
AI/LLM — OpenAI, Claude, Gemini, LangChain, Qdrant. RAG systems, agents, business automation.
Full-Stack — Node.js, TypeScript, React, Next.js, MongoDB, Redis, PostgreSQL. Backend to frontend.
| Project | What it does | Scale |
|---|---|---|
| fStikBot | Telegram sticker platform — bot, web, Android app, Mini App | 800K MAU, 16M+ sticker packs, 500K+ app installs |
| QuotLyBot | Quote image generator for Telegram | 80K+ groups, 370+ stars, 48K msg/min peak |
| quote-api | Rendering API behind QuotLyBot | Cluster architecture, circuit breaker, Prometheus |
1st place — Telegram Mini App Contest 2023.
Backend Node.js, NestJS, Fastify, Hono, Express
Frontend React, Next.js, Vite, Tailwind CSS
AI/LLM OpenAI, Claude, Gemini, LangChain, Qdrant, RAG
Telegram Telegraf, grammY, TDLib, MTProto, Mini Apps
Data MongoDB, Redis, PostgreSQL, BullMQ
Infra Docker, PM2, Sentry, Prometheus