Built LiveKit-based agents for real-time audio/video processing on top of WebRTC

Implemented low-latency STT → LLM → TTS pipelines (OpenAI API) for live transcription, translation, and moderation

Designed and deployed a recording pipeline (Go + GStreamer) converting WebRTC streams into adaptive bitrate HLS with S3 storage

Owned backend services in Go (MongoDB) supporting real-time AI workflows in production

Ran production infrastructure on k3s (Kubernetes) with Prometheus/Grafana/Loki for monitoring and alerting

Led architecture and development of the core trading engine (matching orders, order book, candles) using TypeScript and NestJS

Scaled order processing throughput 10× by redesigning architecture and partitioning trading data

Integrated with Kucoin and OKX Broker APIs, managing liquidity and executing trades in real-time

Designed WebSocket pipelines for real-time market data (200+ trading pairs)

Mentored junior developers, conducted interviews, and improved onboarding

Took part in system scaling under 1M+ registered users and handled sudden user spikes

Participated in futures trading system expansion and architecture transition

Migrated legacy C# billing systems to Go microservices, improving maintainability and reducing setup time

Built integrations with lab APIs (FTP/XML) for 8+ laboratories; automated lab orders and result delivery to millions of patients

Integrated with Stripe, Ckassa and LATAM payment gateways, enabling multi-market payments

Created internal warehouse management system

Developed a full-stack business analytics module with custom filters and aggregation; helped surpass the 1000-client milestone

Migrated data from Neo4j/ElasticSearch to PostgreSQL, cutting infrastructure costs by $10k+ per month

Enabled telemedicine services during COVID using an open-source WebRTC solution

Refactored and stabilized a critical Go microservice for real-time ride dispatching, eliminating frequent crashes

Improved matching algorithm: reduced client wait time from 5 mins to 30 secs by enabling parallel request handling

Rewrote legacy Node.js driver API to modern Promises-based architecture