Illia Kaminskyi

Kaminskyi Illia

Senior Full-stack Engineer

Ukrainian 🇺🇦, based in Chișinău, Moldova · iakaminskij@gmail.com · +380688968829 · GitHub

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Highlights

  • 5+ years commercial software development
  • 8+ years software engineering (personal & open source)
  • Senior Full-stack Developer & Tech Lead (2-4 members)
  • High-load Systems • Cloud • AI
  • React • Next.js • Node.js • TypeScript • PostgreSQL
  • GCP • Kubernetes • AWS • Terraform
  • Claude Code • OpenAI Codex • Pi • MCP • Agentic Development

Projects

Experience

Subjektiv.art — Senior Full-stack Engineer 2023 - Present

Hands-on technical leadership across backend, frontend, mobile, architecture, cloud infrastructure and DevOps.

  • Modernized a large legacy platform while preserving production data and ensuring uninterrupted service.
  • Reduced infrastructure costs by more than 3× through architecture and cloud optimization; migrated production infrastructure from AWS to GCP.
  • Consolidated multiple independent repositories (13) into a unified monorepo, standardizing tooling, development workflows and CI/CD.
  • Designed and maintained Kubernetes infrastructure, CI/CD pipelines, databases and deployment processes.
  • Designed a modern backend architecture while gradually replacing legacy services.
  • Built a monitoring service in Go.
  • Created an editor for placing artworks into realistic interior scenes.
  • Integrated an AI-powered artwork price prediction system.
  • Developed an art-focused social platform with recommendation feeds.
  • Built an Expo wrapper and adapted the web frontend for a native experience, enabling a single codebase across all platforms and eliminating significant native technical debt.
  • Contributed to interactive training games, including AI-powered poker, and built a scenario editor for training simulations.
  • Led and coordinated a team of 2–3 engineers.

Handy.ai — Full-stack Developer 2021 - 2023

  • Developed a low-code/no-code platform for building conversational assistants/bots for Telegram, WhatsApp and Viber and business automation workflows.
  • A job-search platform with web and chatbot interfaces.
  • Built a PWA synchronized with Firebase and Google Docs for legal and police documentation.
  • Led development discussions, code reviews, mentoring and engineering process improvements, coordinated team of 4.

Skills

Languages
JavaScript, TypeScript, Go, Python, C
Frontend
React, Next.js, Vue.js, React Native, Expo, PWA
Backend
Node.js, Go, Fastify, NestJS, Impress, Express, Bun, FastAPI, PostgreSQL, MongoDB, Redis, RabbitMQ, Keycloak, REST API, Stripe, MinIO, S3
DevOps
Docker, Kubernetes, GCP, AWS, Terraform, GitHub Actions, CI/CD, Linux, Nginx, Cloudflare, DNS, SSL/TLS
AI
Agentic Development, LLM Integration, AI-assisted Software Development
Architecture
Microservices, Modular Monolith, Distributed Systems, Event-Driven Architecture

Education

Bachelor's Degree in Computer Science
NTUU "Igor Sikorsky Kyiv Polytechnic Institute"