Private Blockchain Developer — Hyperledger Fabric

Private Blockchain Developer — Hyperledger Fabric We are seeking an experienced Blockchain Developer to design, develop, and deploy a secure, production-ready private/permissioned blockchain network using Hyperledger Fabric. The ideal candidate must have hands-on experience building and deploying Hyperledger Fabric networks, not just theoretical blockchain knowledge. Key Responsibilities * Design and configure a multi-organization Hyperledger Fabric network. * Set up organizations, peers, orderers, Fabric CA, MSPs, channels, and CouchDB. * Develop and deploy chaincode/smart contracts using Node.js or TypeScript. * Build REST/gRPC APIs and event listeners for blockchain integration. * Implement authentication, authorization, endorsement policies, and private data collections. * Configure TLS/mTLS security and secure communication. * Containerize services using Docker and deploy using Kubernetes/AWS EKS. * Configure persistent storage, monitoring, logging, and health checks. * Optimize performance and troubleshoot network, chaincode, and infrastructure issues. * Provide complete technical documentation and deployment instructions. Required Skills * Hyperledger Fabric 2.x/3.x * Fabric CA, MSP, chaincode, and Fabric Gateway * Node.js/TypeScript * Docker and Kubernetes * AWS/EKS and persistent storage * CouchDB and PostgreSQL or other relational databases * REST APIs, gRPC, TLS/mTLS, Linux, and Git Expected Deliverables 1. Fully functional private Hyperledger Fabric network. 2. Multiple organizations with properly configured identities and MSPs. 3. Peer, orderer, and Certificate Authority infrastructure. 4. Tested and deployable chaincode/smart contracts. 5. API integration layer and blockchain event handling. 6. Docker and Kubernetes deployment configurations, including Helm charts where applicable. 7. Security, monitoring, and logging configurations. 8. Complete technical documentation and deployment guide. Please Include in Your Proposal * Examples of previous Hyperledger Fabric or private blockchain projects. * Your specific role and technical contributions in each project. * GitHub, portfolio, or relevant project links, if available. * Experience deploying blockchain infrastructure on Kubernetes/AWS. * Your proposed architecture and implementation approach. * Estimated timeline and hourly rate or fixed-price quotation. * Any infrastructure or cloud costs that would be additional. Important We are looking for a developer with verifiable, practical experience designing, implementing, and deploying permissioned blockchain networks. Please clearly distinguish your own contributions from work completed by other team members. Applicants may be asked to explain their previous architecture, deployment decisions, security model, and troubleshooting experience during a technical discussion. Please submit a proposal outlining your relevant experience, proposed approach, estimated timeline, and budget.