Smart Contracts Jobs

We are looking for an experienced Blockchain Developer / Web3 Developer to help develop the blockchain economic system for our game. Project The game is an anime-style RPG with a planned blockchain-based economic system. We need a developer who can help design and implement the technical infrastructure required to connect blockchain functionality with the game's existing systems. Responsibilities Design the blockchain architecture for the game economy Develop and deploy secure smart contracts Implement token and digital-asset functionality Integrate wallets and blockchain transactions Connect blockchain functionality with the game backend Implement player payment and reward systems Handle ownership and transaction verification Create automated tests and documentation Deploy to a te...

We are building a Web3-powered platform that bridges digital ownership with real-world value. We are looking for a full stack developer with strong blockchain experience to join our team and help bring the MVP to life. This is a hands-on role where you will own the blockchain integration, smart contract development, and backend/frontend Web3 architecture. What You'll Do - Design, write, test, and deploy smart contracts for minting and payments - Integrate Web3 functionality into the frontend (wallet connect, minting, downloads, payments) - Build secure backend routes to handle metadata, file uploads, and on-chain/off-chain syncing - Ensure smooth communication between the Express server, IPFS, and the blockchain - Optimize for low transaction costs and user-friendly experiences Y...

We are seeking an experienced blockchain/full-stack team to build , an institutional Real-World Asset tokenization platform focused initially on ultra-high-purity Copper Powder and high-purity Nickel Wire. The developer must deliver: public website, CMS/admin portal, industrial-metal registry, Digital Asset Passports, ERC-20 smart contracts, configurable tokenomics, institutional whitepaper, future Proof-of-Reserves and redemption modules, fully functional iOS and Android apps, testing, deployment, manuals, training and final handover. ReserveChain is in the Swiss pre-incorporation/prelaunch stage. Final company details, legal structure, token classification, token-holder rights, laboratory reports, ownership records, valuations, custody, insurance, reserve confirmations, offering terms ...

Quiero desarrollar un contrato inteligente en la red Ethereum que sirva como núcleo de una plataforma de intercambio. Lo que necesito • Funciones básicas de depósito y retiro de tokens ERC-20. • Lógica de emparejamiento de órdenes simple (limit y market) dentro del contrato. • Manejo seguro de balances internos y liquidación de operaciones. • Eventos para que el front-end pueda escuchar actualizaciones en tiempo real. Requisitos técnicos – Código en Solidity, compatible con la versión estable más reciente. – Buenas prácticas: uso de OpenZeppelin, patrones de control de acceso y prevención de reentrancy. – Comentarios claros y documentación que...

NECRYPTOVIE (NCV) — Complete 4-Phase Blockchain, AI, Marketplace and IoT Ecosystem NEVIE-GLOBAL is seeking a senior blockchain agency or an experienced multidisciplinary technology team to design, develop, deploy and deliver the complete four-phase MVP of the NECRYPTOVIE (NCV) ecosystem as a turnkey project. We want to be fully transparent from the beginning: this is not simply an ERC-20 token development project. NCV is a complete ecosystem combining blockchain, artificial intelligence, automation, SaaS services, digital and physical products, connected devices, IoT, robotics, B2B services and international expansion. Budget Target fixed budget: USD 2,800 for the complete four-phase MVP. The proposal must cover all four phases and include: one total fixed price for the complet...