Job Description

Software Development Engineer (Blockchain Developer) Kanpur Description We are seeking an experienced Blockchain Developer to design, develop, and deploy secure and scalable E-Governance blockchain applications. You will work on high-impact public sector initiatives such as land registries, supply chain traceability, subsidy distribution, and asset tokenization. The role focuses on Ethereum-based permissioned networks (Quorum/Besu) and Hyperledger Fabric, along with backend integration and blockchain security. Responsibilities Ethereum Blockchain (Quorum / Hyperledger Besu):

• Deploy and manage permissioned Ethereum networks using Quorum or Besu.
• Configure and operate Proof of Stake (PoS) and Proof of Work (PoW) consensus mechanisms.
• Run Besu with customizable consensus and execution engines.
• Design, develop, and deploy upgradable smart contracts with fine-grained permissioning.
• Automate deployments using DevOps tools and scripting.
• Implement token standards including ERC20, ERC721, ERC1155, ERC1400, and ERC3643.
• Deploy and manage multi-organization networks using Docker and Kubernetes.
• Configure custom Certificate Authorities (CAs) and Membership Service Providers (MSPs).
• Support dynamic addition of organizations and peers, along with chaincode upgrades.
• Optimize chaincode lifecycle for real-time applications.
• Customize and manage Hyperledger Fabric consensus mechanisms.
• Develop scalable APIs and backend systems using Node.js or Python (Django).
• Integrate smart contract logic and on-chain events with backend services.
• Build secure middleware for transaction handling, event listening, and state sync.

Security & Cryptography:

• Enforce Web3 security best practices across smart contracts and backend layers.
• Implement digital signature mechanisms using HSMs, DSCs, Java Cards, or customizable web wallets.
• Conduct vulnerability assessments (e.g., reentrancy, integer overflow/underflow).
• Use tools like Slither, MythX, SmartCheck, Solhint, and Foundry fuzzers for analysis.
• Explore and apply Zero-Knowledge Proof (ZKP) techniques: Zether, Nightfall, zk-SNARKs, zk-STARKs.
• Evaluate Layer 2 scaling solutions (zk-Rollups, Optimistic Rollups).
• Contribute to internal tooling (fuzzers, static analyzers, simulation frameworks).
• Engage in research, whitepaper writing, and/or open-source security contributions.
• B.Tech / M.Tech / Ph.D. in Computer Science, Information Technology, or a related discipline.

Skills & Qualifications

• Hands-on experience with Quorum or Hyperledger Besu and Hyperledger Fabric.
• Proficiency in Solidity, Chaincode (Node.js/Go), and Web3 libraries (Web3.js, Ethers.js, Web3.py).
• Deep understanding of smart contract design, upgradeability, and permissioned blockchain architectures.
• Strong knowledge of cryptographic primitives and public/private key infrastructures.
• Familiarity with SQL/NoSQL databases, Git, Docker/Kubernetes, and CI/CD pipelines.
• Strong problem-solving skills and ability to work in cross-functional, fast-paced environments.

Travel As and when required, across the country for project execution and monitoring as well as for coordination with geographically distributed teams. Communication Submit a cover letter summarising your experience in relevant technologies and software along with a resume and the Latest passport-size photograph. #J-18808-Ljbffr C3ihub

Job Tags

Contract work,

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