Blockchain Engineer (Java / )Location:Doha/KSAIndustry:Financial Services / Digital Assets / TechnologyType:Full-timeAbout the RoleWe are seeking aBlockchain Engineerwith a solid background inJava or and hands-on experience in smart contract development, distributed systems, or blockchain integrations. The ideal candidate has exposure toenterprise-grade or permissioned blockchain platformsand can operate across both backend engineering and Web3 development environments.Experience working inconsulting environments or large professional services firms (Big 4 or similar)is highly preferred due to the client-facing and solution-delivery nature of the role.Key ResponsibilitiesDesign, develop, and deploy smart contracts using Solidity or Rust .Build backend services, APIs, and microservices using Java, JavaScript, TypeScript, or .Integrate applications with blockchain networks, RPC endpoints, or node infrastructure.Work with private/permissioned blockchain frameworks and distributed ledger technologies.Develop solutions compatible with EVM chains, Layer 2 networks , or related blockchain ecosystems.Implement secure coding standards and address common smart contract vulnerabilities.Collaborate on architecture decisions, scalability planning, and CI/CD deployment pipelines.Prepare documentation, design specs, and testing plans for blockchain solutions.Optimize contracts for performance, gas usage, and reliability.Required Skills & ExperienceStrong programming background in Java and/or .Hands-on experience with Solidity, Rust , or equivalent smart contract languages.Understanding of EVM networks , Layer 2 technologies, and related infrastructure.Familiarity with cryptographic concepts such as hashing, digital signatures, and Merkle trees.Experience with tools like Hardhat, Foundry, Truffle, or Brownie .Proficiency in Git, CI/CD, DevOps processes, and collaborative development workflows.Knowledge of token standards (ERC-20, ERC-721, ERC-1155) and Web3 development patterns.Experience interacting with blockchain node providers or indexing tools.Frontend experience with React, TypeScript , or modern JS frameworks is a plus.Nice-to-HaveExperience working in consulting firms , professional services, or technology advisory roles (Big 4 experience highly preferred).Exposure to enterprise/permissioned blockchains or distributed ledger frameworks.Background in Payments, Cards, Financial Services , or digital asset ecosystems.Familiarity with DeFi, DEXs, DAOs, NFTs, tokenization, or digital asset protocols.Knowledge of cloud-native or containerization technologies (Docker, Kubernetes).Who Should ApplyThis role is ideal for candidates who:Have a strong engineering foundation and strong interest in blockchain innovation.Enjoy building secure, scalable solutions that merge Web2 and Web3 technologies.Have experience working in structured or client-facing environments such as consulting, fintech, or enterprise tech.Open for Candidates based in KSA or Doha
