Public names where I can use them. The rest is product work under NDA - the shape of the systems is still fair to describe.
Some client names and URLs stay off this page. The shape of the work is fair to describe: international SaaS, payments, and ops products.
Selected work
Lead AI & Full Stack Engineer · 2026
Multilingual AI Assistant with multi-provider LLM fallback (VSCode API, Gemini, OpenRouter, Groq, OpenAI), context-aware RAG knowledge lookup, SSE streaming, and automated lead capture.
Full Stack Developer · 2024-2025
Corporate website & custom admin dashboard for a medical & cosmetology center. Features an intuitive CMS control panel allowing salon staff to manage services, price lists, and content independently.
Senior Software Engineer · NDA · 2025-2026
FinTech HighLoad Web & Telegram Mini App - virtual/physical cards, $1.5M+ processed volume. Next.js, Node.js + Express + MongoDB, Playwright. Client name withheld.
Senior Full Stack · 2022-2025
Hospitality sales-enablement SaaS for hotel brands. React, Next.js, TypeScript, tests, and a production AWS / Docker path.
Senior Full Stack · Upwork · 2017-present
Long-term retainers and investor-ready MVPs: SaaS, dashboards, marketplaces, booking, LMS, CRM, Web3 - I ship and stay, from the data model to years after deploy.
Ready to get started? Send me a message - I'm available to start now and to stay. Long-term retainers, not a two-week handoff. Let's discuss your project, requirements, and the best way to move forward.
mail zavada.dmitry@gmail.comAsk about experience or services