Projects

Production systems, open-source tools, and things I've shipped.

Live

Video Recommendation Engine

High-performance recommendation system that analyzed user preferences to suggest next video to watch, increasing engagement by 75%.

AWS (ECS, S3, SQS, Lambda, CloudWatch)gRPCPostgreSQLMongoDBDockerRecommendation SystemsCollaborative FilteringEvent-Driven Architecture

LLM Product Processing Pipeline

Automated product description preprocessing system using LLMs, reducing manual processing costs by 25% for a major Ukrainian e-commerce platform.

FastAPIPostgreSQLCelery

Nagi - Social Network Backend

Architected and built from scratch the backend for a high-load social network supporting 100k+ active users with real-time messaging, E2E encryption, and live streaming.

WebSocketsRedisMongoDBMemgraphPostgreSQLContent Moderation
Live ↗

IoT Fleet TCP Server

Low-level TCP server managing real-time communication with 500+ electric scooter hardware devices in a sharing system.

TCP ServersPostgreSQLRedis

Multi-Channel Support ERP

Unified ERP system integrating messages from multiple social networks into a single interface, increasing support operator efficiency by 30%.

DjangoPostgreSQLRedisEvent-Driven Architecture

Archived

BERI KATI - Electric Scooter Rental

Founded and operated an electric scooter rental service from scratch - from business model and investment to full operational management.

TCP ServersIoT Protocols