We are looking for an experienced Hyperledger Fabric Blockchain Developer to work on an enterprise-grade AI-powered document verification platform.
The application is a multi-tenant SaaS platform that verifies KYC/KYB documents using AI and stores tamper-proof verification records on a private Hyperledger Fabric blockchain.
This is NOT a cryptocurrency or DeFi project.
Project Overview
The platform allows organizations to:
Upload KYC/KYB documents
Process documents using OCR
Validate identity information
Generate fraud and business risk scores
Store verification proofs on Hyperledger Fabric
Allow auditors to verify document authenticity
Only cryptographic hashes and verification metadata are stored on-chain.
No customer documents or personal information will ever be stored on the blockchain.
Responsibilities
Configure and deploy Hyperledger Fabric development network
Create and maintain chaincode
Implement blockchain transaction flow
Integrate Fabric Gateway SDK with backend APIs
Store verification records on-chain
Implement document hash verification
Build retry mechanism for failed blockchain writes
Assist backend developer during integration
Provide technical documentation
Required Chaincode Functions
RecordVerification()
GetVerify
GetHistory()
Blockchain Data
Store only:
SHA-256 document
Case ID
Tenant ID
Verification result
Verifier ID
Timestamp
Do NOT store:
Documents
OCR text
Names
Addresses
Any customer PII
Technical Requirements
Required Skills:
Hyperledger Fabric
Chaincode (Go preferred)
Docker
Fabric Gateway SDK
CouchDB
Certificate Authority (CA)
Channels & MSP
Git/GitHub
Nice to Have:
Node.js / Python backend integration
AWS experience
Enterprise blockchain projects
Deliverables
Working Hyperledger Fabric network
Production-ready chaincode
Blockchain integration support
Transaction verification APIs
Documentation
GitHub commits
Deployment support
Please Include
Hyperledger Fabric experience
Previous enterprise blockchain projects
GitHub profile
By
Estimated timeline
Availability for technical meetings
Note: Detailed project documentation and architecture will be shared only with the selected freelancer under NDA.