Senior Blockchain Developer

Senior Blockchain Developer (Solidity / Ethereum / Web3) – Long-Term Remote Opportunity ## About the Project We are building a modern Web3 platform that combines blockchain technology with real-world applications. Our team is looking for an experienced Blockchain Developer to help design, develop, and maintain smart contracts and blockchain integrations while working closely with our frontend and backend engineers. This is a long-term remote opportunity with a collaborative international team. ## Responsibilities * Design and develop secure, gas-efficient Solidity smart contracts. * Integrate smart contracts with backend services and frontend applications. * Build blockchain-based features for Ethereum-compatible networks. * Review and optimize existing smart contracts. * Write unit and integration tests. * Participate in architecture discussions and code reviews. * Collaborate with product managers and engineers throughout the development cycle. ## Required Skills * 3+ years of professional blockchain development experience. * Strong knowledge of Solidity and Ethereum. * Experience with Hardhat or Foundry. * Familiarity with ERC-20, ERC-721, ERC-1155, and OpenZeppelin. * Experience with ethers.js or web3.js. * Strong JavaScript/TypeScript knowledge. * Git and collaborative development experience. * Good written and spoken English. ## Nice to Have * Layer-2 experience (Arbitrum, Optimism, Base, Polygon). * DeFi, RWA, staking, or tokenization experience. * Security auditing experience. * Experience with Node.js and React. * Experience deploying production smart contracts. ## What We Offer * Fully remote work. * Flexible working hours. * Long-term collaboration. * Competitive compensation based on experience. * Opportunity to work on an innovative Web3 product with experienced engineers. ## To Apply Please include: * Your GitHub profile. * Portfolio or deployed smart contracts. * Links to blockchain projects you've contributed to. Applicants with real production blockchain experience will be given priority.