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Blockchain + Backend Fullstack Developera (Node.js + Web3)

  • Remote, Hybrid
  • PLN 10,000 - PLN 16,000 per month

What we offer

Real impact on the project — your code will shape the demo directly

Flexible work mode (remote or hybrid)

Possibility of long-term collaboration after the MVP phase

Job description

We’re looking for a technical person who can handle backend development and blockchain integration (Metamask, transactions) in a lightweight, web-based Metaverse environment.

The project is currently at the MVP stage — the goal is to build a showcase demo, not a full commercial product (yet 😉).

It’s a great opportunity to combine your experience in Web3, AI, and 3D within one modern, creative project.

Job requirements

Tech stack

  • Node.js / TypeScript – backend API, virtual items logic

  • Web3 (ethers.js / viem) – Metamask integration

  • Basic smart contracts – gifts/items transactions (Polygon testnet)

  • PostgreSQL or MongoDB

  • Integration with an existing AI chatbot backend (client side)

  • React + Babylon.js – nice to have, for 3D scene integration

We’re looking for someone who

  • Can work independently and handle backend + blockchain end-to-end

  • Has practical experience with Web3 and building MVPs

  • Enjoys working on projects that bring together AI, 3D, and blockchain

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