Blockchain Developer jobs

We are seeking a Mid-Level Blockchain Developer to build government-grade blockchain infrastructure across EVM and permissioned blockchain networks. The ideal candidate will have strong expertise in Solidity smart contract development, Hyperledger Besu/Fabric, ERC-20, ERC-721, ERC-1155 token standards, oracle integrations, and IoT-to-blockchain data pipelines. You will design secure, auditable blockchain solutions, develop multi-oracle consensus mechanisms, integrate backend services with blockchain networks, and ensure enterprise-level security, compliance, and reliability.

Job Responsibilities (JRs)

• Design, develop, and deploy Solidity smart contracts for EVM-compatible blockchains.
• Build and maintain blockchain applications on Hyperledger Besu, Hyperledger Fabric, or other permissioned ledgers.
• Develop and manage ERC-20, ERC-721, ERC-1155, and other NFT token standards.
• Design multi-oracle consensus systems for secure on-chain settlement.
• Build IoT-to-blockchain integrations with secure device telemetry validation.
• Develop backend transaction signing services and blockchain APIs using Node.js or Go.
• Integrate blockchain services with digital identity systems and wallet management.
• Deploy, configure, and maintain validator nodes and blockchain infrastructure.
• Perform smart contract testing, auditing, gas optimization, and security reviews.
• Create technical documentation, architecture diagrams, and deployment procedures.
• Collaborate with security, infrastructure, and product teams to deliver enterprise-grade blockchain solutions.

Job Requirements (JDs)

• 2–5 years of professional Blockchain Development experience.
• Strong expertise in Solidity and EVM-compatible blockchain development (Mandatory).
• Hands-on experience with ERC-20, ERC-721, ERC-1155, and NFT smart contracts (Mandatory).
• Experience with Hyperledger Besu, Hyperledger Fabric, Quorum, or other permissioned blockchain platforms (Mandatory).
• Proficiency with Hardhat, Foundry, Truffle, Ethers.js, and Web3.js.
• Experience developing smart contracts, including upgradeable contracts, gas optimization, and security best practices.
• Knowledge of oracle integration, multi-source consensus, and blockchain settlement mechanisms.
• Experience integrating IoT devices, Secure Element/TPM, or hardware-backed identity solutions is highly preferred.
• Strong backend development skills using Node.js, Go, or similar technologies.
• Understanding of cryptography, digital signatures, hashing, key management, and secure custody.
• Familiarity with validator nodes, IBFT/QBFT consensus, PoA, and permissioned blockchain architecture.
• Experience with Git, CI/CD, testing frameworks, and blockchain deployment pipelines.
• Knowledge of Trusted Execution Environments (Intel SGX/AMD SEV), Zero-Knowledge Proofs, or privacy-preserving blockchain solutions is a plus.
• Excellent analytical, debugging, documentation, and problem-solving skills.
• Experience working on enterprise, government, fintech, or highly regulated blockchain projects is highly preferred.

Work Location: In person