About this opportunity
GenixBit Labs Pvt. Ltd. lists this Senior Smart Contract & Web3 Engineer opportunity in northern, Kentucky. Review the employer’s description below for duties, qualifications and application requirements.
Job description
Senior Smart Contract & Web3 Engineer
Full-time Remote Global / USA Remote Senior $140,000 - $200,000 / year Posted: Sep 11, 2026 · Closes: Oct 1, 2026
About the Role
Develop and audit secure Solidity smart contracts on EVM chains, zero-knowledge proof integrations, and decentralized asset tracking protocols.
Key Responsibilities
Architect gas-optimized Solidity smart contracts using Foundry and Hardhat
Conduct automated security fuzzing, static analysis (Slither), and formal verification
Integrate contract state with web frontends via Viem / Ethers.js and GraphQL Subgraphs
Deploy and manage decentralized oracle integrations and Layer-2 scaling bridges
Requirements
4+ years professional smart contract development experience (Solidity / EVM)
Deep understanding of EVM assembly (Yul), gas optimization, and ERC standards (ERC-20, ERC-721, ERC-1155)
Experience with Foundry, Hardhat, Ethers.js, and audit methodologies
Strong grasp of cryptographic primitives and decentralized architecture
Solidity Foundry TypeScript Ethers.js Viem Subgraphs
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Who can apply
Review the original listing for work authorization, qualifications and employer requirements.