
201 - 500 employees
đž Finance
đł Fintech
âż Crypto
Finance âą Fintech âą Crypto
CAIZ is a financial ecosystem offering Shariah-compliant services through its CAIZcoin token. The ecosystem includes CAIZapp for payments and financial services, CAIZchain for secure blockchain operations, and CAIZearn for rewarding user engagement. CAIZ aims to provide an alternative financial system targeting the underserved Islamic fintech market.
đ 5 days ago
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201 - 500 employees
đž Finance
đł Fintech
âż Crypto
Finance âą Fintech âą Crypto
CAIZ is a financial ecosystem offering Shariah-compliant services through its CAIZcoin token. The ecosystem includes CAIZapp for payments and financial services, CAIZchain for secure blockchain operations, and CAIZearn for rewarding user engagement. CAIZ aims to provide an alternative financial system targeting the underserved Islamic fintech market.
âą Design, develop, and deploy smart contracts using Solidity on EVM-compatible blockchains âą Build and maintain Rust-based blockchain modules, such as on Substrate or Solana-compatible platforms âą Contribute to the design of custom blockchain protocols and token standards âą Write secure, gas-optimized, and thoroughly tested smart contracts âą Collaborate with frontend and backend teams to integrate blockchain components into products âą Conduct code reviews, audits, and vulnerability assessments for blockchain code âą Analyze and improve the performance, security, and scalability of the Caiz blockchain âą Stay up-to-date with the latest developments in blockchain technologies, including new EIPs, cryptographic primitives, and layer-2 solutions
âą 3+ years of experience in blockchain development with hands-on coding in Solidity and Rust âą Strong understanding of smart contract design, blockchain architecture, cryptography, and consensus mechanisms âą Experience developing and deploying smart contracts on Ethereum or similar EVM chains âą Proficiency in Rust for blockchain environments such as Substrate or Solana âą Familiarity with Web3.js, Ethers.js, Hardhat, Truffle, and related tools âą Understanding of DeFi protocols, token standards (ERC-20, ERC-721, etc.), and layer-1/layer-2 ecosystems âą Experience with version control systems (Git) and CI/CD workflows âą Strong problem-solving skills and ability to write clean, maintainable code
âą Competitive Financial Compensation âą Work Flexibility âą Annual Holidays âą Relocation Assistance âą Professional Development âą Employee Recognition âą Inclusive & Collaborative Culture âą Diversity, Equality, and Inclusion
Apply Nowđ May 21
Senior Blockchain Security Developer for OpenZeppelin, focusing on the Contracts Library for Daml. Leading technical implementation and working with cross-functional teams on DeFi protocols.
đ Anywhere in the World
đ° Seed Round on 2018-01
â° Full Time
đ Senior
âïž Blockchain Engineer
đ August 27, 2025
1 - 10
Backend Blockchain developer building Plutarch (Haskell) smart contracts for Cardax DEX on Cardano. Work remotely worldwide.
đ Anywhere in the World
đ” âŹ5k - âŹ8k / year
â° Full Time
đĄ Mid-level
đ Senior
âïž Blockchain Engineer
Haskell