> Markdown version of [/jobs/ext/126941-smart-contract-developer-defi-token-infrastructure](https://www.wearedevelopers.com/jobs/ext/126941-smart-contract-developer-defi-token-infrastructure). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Smart Contract Developer - DeFi / Token Infrastructure - **Company:** Beelium Productions, LLC - **Location:** United States (Remote available) - **Salary:** $98,671.0 - $130,872.0 - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Software Debugging, Blockchain, TypeScript, Uniswap, Git, Integration Tests, Ethereum, Solidity, Software Version Control - **Published:** May 16, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=70b82429c7b49f54 ## About the Role Do you have experience in Version control?, * 1+ years of hands-on smart contract development with deployed code on Ethereum mainnet or equivalent L2 (Arbitrum, Optimism, Base, etc.). Provide contract addresses. * Deep understanding of EVM fundamentals (gas, storage, calldata, re-entrancy, front-running). * Proficiency with Solidity and at least one framework (Foundry, Hardhat, or Truffle). * Experience with OpenZeppelin libraries and contract upgrade patterns. * Ability to read and debug using block explorers and tracing tools. * Strong version control practices (Git). Preferred (Not Required): * Rust experience for Solana or SVM chains. * Knowledge of DeFi protocols (Uniswap V2/V3, Aave, Compound forks). * Basic TypeScript/JavaScript for integration testing. * Previously participated in a formal smart contract audit. ## Description An early-stage, well-funded cryptocurrency startup (name under wraps) is preparing for public launch. We are building a lean engineering team from the ground up. We seek a Smart Contract Developer who can independently design, implement, and deploy secure blockchain protocols - bridging product requirements with on-chain reality., * Smart Contract Development: Design, write, test, and deploy Ethereum-compatible smart contracts (Solidity) or Solana programs (Rust). Implement token standards (ERC-20, ERC-721, ERC-1155) and custom logic as required. * Security & Best Practices: Write comprehensive unit and integration tests using Foundry/Hardhat. Implement re-entrancy guards, access controls, and emergency pause mechanisms. Prepare code for external auditing. * Deployment & Verification: Deploy contracts to testnet and mainnet. Verify source code on Etherscan or similar. Manage upgradeable proxies (UUPS/Transparent) where applicable. * Cross-Team Collaboration: Work directly with the founder and marketing lead to translate product requirements into gas-efficient, secure contract logic. * Team Building: As an early engineering hire, help define coding standards, review external contributions, and participate in interviewing future developers. ## Related Videos - [Smart Contract fundamentals - My first DApp](https://www.wearedevelopers.com/videos/52-smart-contract-fundamentals-my-first-dapp) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [SSO with Ethereum and Next JS](https://www.wearedevelopers.com/videos/288-sso-with-ethereum-and-next-js) - [Blockchain, NFT and smart contracts for my application](https://www.wearedevelopers.com/videos/877-blockchain-nft-and-smart-contracts-for-my-application) - [​Road to Web3](https://www.wearedevelopers.com/videos/584-road-to-web3) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) ## Related Articles - [7 tips on how to become a blockchain developer](https://www.wearedevelopers.com/magazine/53-7-tips-on-how-to-become-a-blockchain-developer) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Why Blockchain? A Developer’s Perspective](https://www.wearedevelopers.com/magazine/616-why-blockchain-a-developer-s-perspective) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [From Hype to Code: Real Blockchain Use Cases for Developers](https://www.wearedevelopers.com/magazine/620-from-hype-to-code-real-blockchain-use-cases-for-developers) - [Dev Digest 132 - Binging WADFlix?](https://www.wearedevelopers.com/magazine/473-dev-digest-132-binging-wadflix)