👨‍💻 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 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.

Deepening in Python, 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 — Translate & Learn mobile app (App Store, Play Store) (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