Details

Description

We are hiring an experienced Web3 / Full-Stack Developer to work on a modern blockchain-powered crowdfunding platform built with Ethereum smart contracts, a React-based frontend, and a scalable Node.js + MongoDB backend.

The platform enables creators to launch funding campaigns and allows backers to support projects transparently via secure on-chain transactions. The system is already functional and well-structured; this role focuses on bug fixing, stability improvements, and technical optimization, not rebuilding the project.

Responsibilities

Identify and fix existing frontend, backend, and Web3 integration bugs

Debug Ethereum transaction flows and wallet interactions

Improve platform reliability, error handling, and performance

Ensure smooth interaction between smart contracts, backend APIs, and UI

Maintain clean, well-documented code without altering the core architecture

Tech Stack

Frontend: React 18, Vite, Tailwind CSS

Backend: Node.js, Express, MongoDB (Atlas)

Blockchain: Ethereum, Solidity, Ethers.js, MetaMask

Infrastructure: Cloud-hosted, REST APIs

Requirements

Proven experience with React and modern JavaScript

Hands-on experience with Ethereum smart contracts

Strong debugging and problem-solving skills

Familiarity with Web3 wallet integration and transaction handling

Ability to work on an existing production-ready codebase

Project Type

Bug fixing & optimization

Short-term task with potential for ongoing work

Deliverables

Fixed and verified bugs

Clear explanation of issues and solutions

Stable, production-ready code