We are seeking an experienced Blockchain / Web3 Developer who will design, build, test, and deploy smart contracts, integrate them with front‑end and back‑end systems, and ensure high standards of security, performance, and usability. You will collaborate with product, UX, frontend, and backend teams to deliver production‑ready features, contribute to architecture decisions, and continuously improve our Web3 stack. Key Responsibilities Design, write, and deploy secure smart contracts Implement token standards (ERC‑20, ERC‑721, ERC‑1155) and upgradeable contracts using libraries like OpenZeppelin Optimise contracts for gas usage, performance, and security, including audits and peer reviews Integrate Web3 libraries with front‑end applications and wallets Develop backend services / APIs that interact with on‑chain and off‑chain data Work with Layer‑2 / roll‑ups / scaling solutions, bridges, and/or cross‑chain integrations where required Write automated tests, maintain CI/CD pipelines, and ensure robust coverage and code quality Maintain clear technical documentation, and mentor more junior engineers Requirements 5–8+ years experience in blockchain / Web3 development Strong Solidity skills; experience with EVM chains; familiarity with non‑EVM is desirable Proficiency in Web3 tools: Hardhat, Truffle, Foundry, etc. Experience with front‑end technologies (React, Next.js) and backend Good grasp of REST / GraphQL APIs, database work (SQL / NoSQL), and decentralised storage Solid understanding of Web3 security best practices Ability to work in an agile, collaborative team; good communication skills in English Desirable Extras Experience with gas‑efficient contract design and Layer‑2 roll‑ups Prior exposure to zero‑knowledge proofs, account abstraction, or decentralised identity (DID) systems Open source contributions or code samples / portfolio of deployed smart contracts or projects Experience in marketplace / escrow / auction mechanics Seniority level: Mid‑Senior level Employment type: Contract Job function: Information Technology Industries: IT Services and IT Consulting Referrals increase your chances of interviewing at Belmont Lavan by 2x Get notified about new Blockchain Developer jobs in Texas City, TX. We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI. #J-18808-Ljbffr Belmont Lavan
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