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Blockchain Web3 Developer

Blockchain Web3 Developer

Belmont Lavan LtdTexas City, TX, US
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Job Description

Job Description

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.
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    Blockchain Developer • Texas City, TX, US

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