Blockchain/Web3 Developer Needed

Node.js, Blockchain, Ethereum, Backend Development, Frontend Development, Rust, Solidity, Smart Contracts, Next.js, Solana · ### Project Overview

We are looking for an experienced **Blockchain / Web3 Developer** to join our project on a freelance/contract basis.

The ideal developer will have strong hands-on experience building and integrating blockchain-based applications, smart contracts, wallets, tokens, and Web3 infrastructure. You should be comfortable working independently, reviewing an existing codebase, identifying technical issues, and delivering production-ready solutions.

### Responsibilities

* Develop, integrate, and maintain **Web3 and blockchain applications** * Design and implement **smart contracts** and blockchain integrations * Work with blockchain nodes, wallets, tokens, and on-chain transactions * Build and maintain backend services that interact with blockchain networks * Integrate smart contracts with frontend and backend applications * Review existing blockchain code and identify bugs, security risks, and performance issues * Improve scalability, reliability, and security of blockchain infrastructure * Write automated tests for smart contracts and blockchain-related functionality * Debug production issues and provide technical solutions * Work with APIs, databases, cloud infrast