Blockchain Developer

Responsibilities

• Design, develop, and deploy smart contracts using Solidity on EVM-compatible blockchains
• Build and maintain Rust-based blockchain modules on Substrate or Solana-compatible platforms
• Contribute to the design of custom blockchain protocols and token standards
• Write secure, gas-optimized, and thoroughly tested smart contracts
• Collaborate with frontend and backend teams to integrate blockchain components
• Conduct code reviews, audits, and vulnerability assessments
• Analyze and improve performance, security, and scalability of the Caiz blockchain

Requirements

• 3+ years of experience in blockchain development with Solidity and Rust
• Strong understanding of smart contract design, blockchain architecture, and cryptography
• Experience deploying smart contracts on Ethereum or similar EVM chains
• Proficiency in Rust for Substrate or Solana environments
• Familiarity with Web3.js, Ethers.js, Hardhat, and Truffle
• Understanding of DeFi protocols and token standards (ERC-20, ERC-721)
• Experience with Git and CI/CD workflows
• Bachelor's degree in Computer Science, Software Engineering, or a related field
• Fluency in English

Preferred Qualifications

• Experience building Layer 1 or Layer 2 blockchains
• Knowledge of blockchain security best practices and audit processes
• Exposure to zero-knowledge proofs (ZK), rollups, or cross-chain bridges
• Experience in agile or startup environments
• Understanding of Islamic finance or Sharia-compliant principles

Benefits

• Competitive financial compensation
• Work flexibility (home, office, or abroad)
• Annual holidays and paid time off
• Relocation assistance
• Professional development and training opportunities
• Employee recognition programs

About the Company

Caiz is building the first Islamic ecosystem built on blockchain, creating a Fiqh compliant financial ecosystem that provides ethical financial products and services through the Caizblockchain and Caizapp.