// portfolio

Andrii Chekh

Backend Engineer · AI Automation & LLM Systems

I build production systems across Python, Node.js, and FastAPI — n8n workflows, AI agents, and data pipelines. I work independently and ship end-to-end.

▸ Zaporizhzhia, Ukraine▸ Ukrainian · English

GitHub LinkedIn

<Tech Stack/>

Core

Python
Node.js
FastAPI
PostgreSQL
Docker

AI & Automation

OpenAI
Claude
Llama
n8n
Make

Also experienced with

MongoDB
Milvus
Redis
Supabase
AWS
GCP
React
Next.js
Git
CI/CD

<Experience/>

Backend & Full-Stack Developer

BandItNov 2023 – Dec 2025

AI-driven video generation pipelines & TTS voice cloning
AI agents for semantic search & contextual retrieval over scraped data
Large-scale data scraping & processing pipelines
End-to-end product delivery (frontend, backend, deployment, perf optimization)
Server infrastructure design (Linux, Docker, reverse proxy)

Full-Stack Engineer

ImpressitApr 2021 – Oct 2023

Production features across full-stack (React, Node.js, Python)
API integrations & backend services
Module ownership — refactoring & optimization

<Key Projects/>

Automated Content Generation & Posting SystemNDA

Python
OpenAI
n8n
WordPress API
Docker

Scientific Paper Scraping & AI Pipeline

Python
LLM
proxy rotation
parallel processing
PDF parsers

Structured Products Metrics EngineNDA

Python
FastAPI
PostgreSQL
MySQL
Docker
S3

BNB Chain Wallet Manager API

Python
FastAPI
Web3.py
Docker

<Works/>

▸ Live projects, each on its own host

game-client

game-client.acvid3.com