Solidity Jobs

About the project Web3 app for tokenized precious metals. Users hold a claim on real metal stored in vaults, not ETFs or paper assets. Live areas: landing page, user dashboard, Proof of Reserve, Zakat calculator, redemption portal. The codebase is already started. We need a developer to build it out and get it production-ready. Tech stack - Frontend: , React, TypeScript - Backend: Node.js, Express, MongoDB - Web3: Solidity, Hardhat, What you'll work on - Smart contracts: extend vault logic, add tests, deploy - Backend APIs: auth, balances, blockchain data - Frontend: dashboard, wallet connect, UI polish - Integrations: wallet, KYC, email We're looking for - Strong TypeScript - Real Web3 experience (, Solidity) - Comfortable with and React - Able to work from an ...

I need an experienced blockchain coder to handle the entire smart-contract layer of my upcoming project. The priority is clean, secure smart contract development—from architecture through deployment—while keeping gas costs and upgradeability in mind. I have not locked in a chain yet, so if you are comfortable on Ethereum, Binance Smart Chain, Polkadot, or can justify another EVM-compatible network, please outline why it fits. I’m equally open on the contract’s purpose: token logic, an NFT framework, or a back-end for a dApp are all in scope; the key is that the code is solid and audit-ready. Deliverables • Full Solidity (or relevant) source with in-line comments • Comprehensive unit tests and deployment scripts (Hardhat or Truffle preferred) •...

Our backend already serves tokenization logic through an Express API layer and Solidity smart-contracts; now I need a polished, minimalistic frontend that lets issuers, investors, and compliance officers interact with those services in real time. What you will tackle • A web dashboard that authenticates users and assigns role-based permissions (issuer, investor, admin). • Screens for primary issuance, secondary trading, compliance checks and transaction history, all pulling live on-chain and off-chain data. • Wallet connectivity and signing flows that talk directly to our existing Solidity contracts. • Responsive layouts and smooth state management so the interface feels high-trust even when chain calls are pending. Tech expectations While I’m flexible...

I'm building a real-world-asset (RWA) platform and need additional hands across the stack to accelerate development. The codebase has an ERC token framework and early React interface, but needs smart contract refinement, production front-end, solid architecture, and backend integration. You'll work on: - Solidity contracts (tokenization, governance, payouts) – aiming for 90% test coverage + audit readiness - React/ front end – Web3 integration, responsive dashboard - Blockchain architecture – chain selection, nodes, oracles, security - Backend (Node.js/Python) – REST/GraphQL APIs, KYC hooks, Postgres Requirements: - Contracts deployed to testnet with static analysis passed - Front end connects via MetaMask & WalletConnect - Documented backend endpoin...

I need a production-ready smart contract written for Ethereum that will handle straightforward financial transactions, then wrap it in a clean single-page dApp so end-users can interact with it without touching the command line. The contract must be solidly coded in Solidity, thoroughly tested, and deployed to the mainnet once we finish our reviews. On the front-end I want a lightweight React (or similar) page that talks directly to the contract. Wallet integration is essential—MetaMask and any other common Web3 wallets should connect seamlessly so users can approve, send, and monitor transactions. A clear, searchable transaction history pane is the second must-have so people can verify their activity in real time. Beyond those core pieces I have several additional features in min...