Telegram Mini App
Senior Software Engineer · NDA · 2025–present
Fintech Web & Telegram Mini App — virtual/physical cards. Next.js, Node.js + Express + MongoDB, Playwright. Client name withheld.
TelegramMini AppNext.jsNDA
Projects
Public names where I can use them. The rest is product work under NDA — the shape of the systems is still fair to describe.
Projects(selected)
Product systems under NDA
Some client names and URLs stay off this page. The shape of the work is fair to describe: international SaaS, payments, and ops products.
- Large-scale product work: marketplaces, fintech, e-learning, CRM/ERP, DeFi/GameFi, SaaS
- Full-stack ownership: Postgres / Mongo, NestJS or Node APIs, React / Next.js, CI on Docker
- Telegram Mini Apps and bots — payments and product UI where the user already lives
- AI inside the app: LLM hooks, RAG, TTS — not a landing-page chatbot
Selected work
Visiting Media
Senior Full Stack · 2022–2025
Hospitality sales-enablement SaaS for hotel brands. React, Next.js, TypeScript, tests, and a production AWS / Docker path.
Next.jsReactTypeScriptAWS
Upwork — product delivery
Senior Full Stack · Upwork · 2017–2025
Investor-ready MVPs and longer retainers: SaaS, dashboards, marketplaces, booking, LMS, CRM, Web3 — from the data model to the deploy.
ReactNode.jsNestJSAI
Give the next product someone who stays.
Ready to get started? Send me a message — I'm available to start now. Let's discuss your project, requirements, and the best way to move forward.
mail zavada.dmitry@gmail.com