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Job Openings Solidity Smart Contract Developer – BNB Smart Chain | Remote About the job Solidity Smart Contract Developer – BNB Smart Chain | Remote Job Title: Solidity Smart Contract Developer – BNB Smart Chain | Remote Job Location: San Francisco, CA, USA Job Location Type: Remote Job Contract Type: Full-time Job Seniority Level: Mid-Senior levelAbout NodeMetaNodeMeta is a Web3 ecosystem built on BNB Smart Chain, developing decentralized products including an NFT marketplace, staking ecosystem, and blockchain-powered commerce platforms.About the RoleNodeMeta is looking for a Solidity Smart Contract Developer to join our fully remote Web3 team and take ownership of the smart contract layer across our growing ecosystem.You’ll work on both existing production contracts and new products being built from the ground up. The role has a strong focus on architecture, security, testing, and production-ready Solidity development.Key responsibilities: Design and develop Solidity smart contracts on BNB Smart Chain. Maintain and optimize existing staking contracts. Build NFT marketplace contracts using BEP-721 and BEP-1155 standards. Develop NFT staking, reward distribution, lock-up, and withdrawal mechanisms. Build marketplace functionality including listings, bidding, auctions, direct sales, and escrow. Design SmartCommerce payment, settlement, refund, and escrow contracts. Write comprehensive unit, integration, and fuzz tests. Optimize gas usage while maintaining security and code readability. Prepare contracts for third-party security audits and remediate audit findings. Collaborate with backend and other engineering teams on on-chain/off-chain integrations. Verify deployed contracts on BscScan and maintain clear technical documentation. Technical environment: Blockchain: BNB Smart Chain / EVM Solidity: ^0.8.20 OpenZeppelin Contracts v5 BEP-20, BEP-721, BEP-1155 Hardhat or Foundry Foundry fuzzing / Echidna IPFS / Arweave Requirements: 2+ years of production Solidity development experience. Experience with deployed and verified smart contracts on BscScan or Etherscan. Strong knowledge of smart contract security, including reentrancy, access control, front-running, oracle manipulation, and common EVM vulnerabilities. Hands-on experience with Hardhat or Foundry. Strong understanding of OpenZeppelin and EVM token standards. Ability to balance security, gas efficiency, maintainability, and architecture. Good written English and ability to work independently in a remote environment. Hiring process: Application review → 20–30 minute conversation → 1-hour practical Solidity assessment → technical interview → offer. NodeMeta recruiters will never ask candidates to send cryptocurrency, share wallet seed phrases, pay application fees, or purchase equipment using personal funds.This job is curated by Lifelancer. Lifelancer is a talent-hiring platform in Life Sciences, Pharma and IT. The platform connects talent with opportunities in pharma, biotech, health sciences, healthtech and IT domains. Please apply via Lifelancer platform to get connected to the application page and to find similar roles. Apply for Position Or refer someone Share Facebook Line LinkedIn X (Formerly Twitter) Whatsapp EmailRemote$138K–181.7K

posted 13 days ago

Veolia Environnement SA