Blockchain Developer — DX Blockchain Group FZCO

• Company: DX Blockchain Group FZCO
• Sector: Blockchain
• Source: web
  3.career

DX Blockchain Group FZCO is a blockchain development company focused on building decentralized applications, smart contracts, white-label NFT marketplaces, and secure blockchain infrastructure. The company helps businesses turn blockchain technology into practical products through architecture, development, security, deployment, and ongoing technical support.

As demand grows for decentralized finance, tokenized products, digital ownership, smart contract automation, and Web3 applications, DX Blockchain Group is expanding its blockchain engineering capabilities.

We are hiring a Blockchain Developer to design, build, test, and maintain smart contracts, decentralized applications, wallet integrations, and blockchain-based products.

This is a full-time technical role intended for developers with direct cryptocurrency or Web3 experience. Candidates should understand how public blockchains, wallets, transactions, gas fees, token standards, decentralized applications, and smart contracts operate in production.

General software development experience without practical blockchain knowledge will not be sufficient for this position.

Candidates must be legally authorized to work remotely from the United States.

Design, develop, test, deploy, and maintain production-grade smart contracts and decentralized applications

Build blockchain products across DeFi, NFT marketplaces, tokenized assets, wallets, payments, digital ownership, and Web3 infrastructure

Develop secure smart contracts using Solidity and modern Ethereum development frameworks

Integrate frontend and backend applications with blockchain networks, wallets, RPC providers, indexers, and smart contract APIs

Implement token standards such as ERC-20, ERC-721, ERC-1155, permit-based approvals, and upgradeable contract patterns where appropriate

Build wallet connectivity using technologies such as Meta Mask, Wallet Connect, ethers.js, viem, or web
3.js

Write automated unit, integration, fork, and end-to-end tests for smart contracts and blockchain workflows

Review smart contracts for reentrancy, access-control errors, oracle manipulation, arithmetic issues, front-running exposure, signature vulnerabilities, and other security risks

Optimize smart contract architecture and gas usage without compromising readability, maintainability, or security

Work with blockchain explorers, testnets, local nodes, RPC providers, decentralized storage systems, and on-chain data services

Participate in technical architecture discussions, code reviews, documentation, deployment planning, and incident investigation

Monitor protocol upgrades, Ethereum improvement proposals, blockchain security incidents, developer tooling, and emerging Web3 standards

Collaborate with product, design, security, infrastructure, and client-facing teams to translate requirements into reliable blockchain products

Professional experience developing smart contracts, decentralized applications, blockchain infrastructure, or cryptocurrency products

Strong proficiency in Solidity and practical knowledge of the Ethereum Virtual Machine

Experience using Foundry, Hardhat, or another professional smart contract development and testing framework

Experience integrating applications with wallets, smart contracts, RPC endpoints, blockchain explorers, and on-chain data

Understanding of Ethereum transactions, calldata, events, gas, nonces, signatures, private and public keys, contract storage, and transaction finality

Understanding of common smart contract vulnerabilities and secure development practices

Familiarity with DeFi, token standards, decentralized exchanges, liquidity pools,…