👨‍💻 Senior Full-Stack Engineer | 15 yrs | React · Node.js · Python · React Native

Senior Full-Stack Engineer with 15 years building high-performance web and mobile applications across e-commerce, healthtech, fintech, and adtech. Core stack: React (8+ yrs), TypeScript, Node.js (6+ yrs), Python (FastAPI — production project shipped), and React Native (Expo).

I actively integrate AI development tools (Claude Code and similar) into my workflow, gaining measurable speed and flexibility across prototyping, debugging, and delivery.

Proven at both team delivery and solo end-to-end execution — I've led frontend teams, driven architecture decisions on monorepos and federated GraphQL, and independently shipped production services, mobile apps, and side projects. Infrastructure experience spans Docker, Kubernetes (production), AWS, GCP, Terraform, and cost-effective fly.io + SQLite + Litestream setups.

Currently growing Go skills (certified, building with gRPC) and preparing for AWS Solutions Architect certification. Former lecturer at Kyiv Polytechnic (3 course streams, 200+ students).

• etymap.wiki — Interactive cognate word map across languages (Hono · SQLite · LiteStream · fly.io)
• LinguaDeck — Translator mobile app, near App Store & Play Store release (Expo · React Native · Supabase · PostgreSQL · Deno)

Frontend: React, TypeScript, React Native, Expo, GraphQL (Apollo Federation), TailwindCSS, D3.js
Backend: Node.js, NestJS, Hono, Python (FastAPI, aiogram, SQLAlchemy), Go (gRPC), Kafka
Databases: PostgreSQL, SQLite (+ Litestream), Redis, MongoDB, Firebase/Firestore, Supabase
DevOps: Docker, Kubernetes, AWS, GCP, fly.io, Terraform, GitHub Actions
AI/ML: LangChain/LangSmith, Claude Code