Chytré smlouvy 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) •...

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...

I need a bot that operates end-to-end on Polymarket, running unattended while it tracks live market data, identifies profitable opportunities, and places trades automatically. The core workflow should pull real-time odds, analyse short-term trends, decide on position size and direction, and then submit the trade on-chain—all without manual input. A simple JSON or YAML file for parameters (max exposure, gas limits, strategy toggles) will let me tweak behaviour without touching the code. Please write the bot in a widely supported language such as Python or TypeScript and interact with Polymarket through web3 / or an equivalent library. The process must include reliable error handling, logging of every action, and a dashboard or CLI summary so I can review performance at a glance. If ...

Location: Remote / On-site Industry: Blockchain, Healthcare Infrastructure My name is Charles Ma and I am a recruiter at VDARTInc. I am reaching out to you on an exciting job opportunity with one of our clients. About the Role We’re building a Medical Supply Chain Blockchain platform focused on drug registration, licensing, unit-level tracking, and verification across the healthcare ecosystem. This system connects manufacturers, distributors, and healthcare providers through secure, transparent, and tamper-proof infrastructure. We’re looking for a Blockchain Engineer to lead development of smart contracts and distributed components powering this system, from supply tracking to verification workflows. What You’ll Work On - Design and implement smart contracts for drug r...

Job Title: Senior Python Developer: Crypto Trading Bots, Solana Smart Contracts & AI Integration ​Job Description: I am looking for a highly skilled developer to work on a sophisticated, high-performance crypto trading project. The ideal candidate must have a deep understanding of algorithmic trading, complex system architecture, and modern AI technologies. ​Key Requirements: ​Python Proficiency: Expert-level experience in developing high-performance trading bots. ​Crypto Trading: Strong background in building and maintaining automated trading systems, including real-time order flow analysis and liquidity monitoring. ​Solana Ecosystem: Deep expertise in the Solana blockchain, specifically in developing, auditing, and deploying complex Smart Contracts from scratch to production (End-to-...