Developing Human resource system with blockchain and AI

Developing a Human Resource (HR) System with Blockchain and AI is a strong and future-proof approach—especially relevant for government and public sector systems like in Timor-Leste, where trust, transparency, and efficiency are critical. Below is a clear, practical, and implementation-oriented blueprint, aligned with what you’ve already been designing (HRMS, attendance, payroll, AI, interoperability). 1. Why Combine AI + Blockchain in HR? Challenge in Traditional HR AI Solution Blockchain Solution Manual HR processes AI automation & chatbots Immutable workflow records Fake certificates / CV fraud AI document verification Verifiable credentials Payroll manipulation AI anomaly detection Tamper-proof payroll ledger Weak performance evaluation AI performance analytics Immutable appraisal history Low public trust AI transparency Auditability & trust 2. High-Level Architecture Frontend (Web / Mobile / Kiosk) | API Gateway (Django REST) | ---------------------------------- | AI Layer | Blockchain Layer | |---------------|------------------| | NLP Chatbot | Smart Contracts | | Face AI | Credential Chain | | Predictive ML | Payroll Ledger | ---------------------------------- | Core HR Modules (PostgreSQL) | Interoperability (e-Gov / ASEAN) 3. Core HR Modules (Enhanced with AI & Blockchain) 3.1 User & Identity Management Tech • Django Auth + JWT • Blockchain DID (Decentralized Identity) Features • Role-based access (HR, Employee, Manager, Auditor) • Blockchain-based employee identity hash • Immutable onboarding records 3.2 Recruitment & Verification AI • CV parsing (NLP) • AI scoring & ranking • Fake certificate detection (OCR + ML) Blockchain • Store verified certificates hash • Candidate credential verification • Prevent CV tampering 📌 Use case: ASEAN credential portability 3.3 Attendance & Timesheet AI • Face Recognition (FaceNet / OpenCV) • Anti-spoofing • Anomaly detection (fake check-ins) Blockchain • Daily attendance hash • Immutable work-hour logs • Dispute-proof records 3.4 Leave Management AI • Leave pattern analysis • Abuse detection • Auto-approval recommendation Blockchain • Approved leave record immutability • Policy enforcement via smart contracts 3.5 Payroll Management (High-Impact Area) AI • Salary anomaly detection • Overtime & allowance prediction • Fraud detection Blockchain • Payroll smart contracts • Immutable payslip ledger • Audit-ready for Ministry of Finance 📌 Critical for public trust 3.6 Performance Management AI • KPI scoring • Bias-reduction in evaluation • Performance trend analysis Blockchain • Immutable appraisal history • Promotion eligibility proof • Transparent scoring 3.7 Training & Capacity Building AI • Skill gap analysis • Personalized learning paths • AI tutor (Tetum + Portuguese) Blockchain • Digital training certificates • Verifiable learning history • ASEAN-recognized credentials 3.8 HR Chatbot (Multilingual) AI • Local LLM via Ollama • Tetum / Portuguese / English • Context-aware HR assistant Functions • Leave balance • Payroll explanation • HR policy Q&A 4. Blockchain Design (Practical & Lightweight) Recommended Approach ✔ Permissioned Blockchain • Hyperledger Fabric • Polygon PoS (private) • Quorum What Goes On-Chain? Data On-Chain Off-Chain Attendance hash ✅ ❌ Payroll hash ✅ ❌ Certificates Hash only File storage Personal data ❌ PostgreSQL ⚠️ Never store personal data directly on-chain 5. AI Stack Recommendation Function Tool LLM Chatbot Ollama (Qwen2.5 / Mistral) Face Recognition FaceNet + MTCNN NLP HuggingFace Anomaly Detection Scikit-learn OCR PaddleOCR / EasyOCR Forecasting XGBoost 6. Tech Stack (Aligned with Your Work) Backend • Django + Django REST Framework • PostgreSQL • Celery + Redis Frontend • Angular / React • Mobile: Flutter (optional) Blockchain • Hyperledger Fabric • Web3.py AI • Ollama (Local LLM) • TensorFlow / PyTorch Security • JWT + RBAC • Hashing + Encryption • Audit logs 7. Governance & Compliance (Public Sector Ready) • Data sovereignty • GDPR-style privacy • Audit trails • Digital signature support • ASEAN Digital Interoperability 8. 12-Month Implementation Roadmap Phase Focus Month 1–2 Core HRMS Month 3–4 Attendance + Face AI Month 5–6 Payroll + Blockchain Month 7–8 Performance + AI Month 9 Training & AI Tutor Month 10 Interoperability Month 11 Security & Audit Month 12 Pilot & Rollout