PayShield is a cloud-native payment risk monitoring and fraud detection platform built on AWS. It analyzes payment transactions, evaluates risk in real time, and alerts analysts when suspicious activity is detected.
- Secure payment transaction ingestion
- Fraud and risk scoring engine
- Real-time suspicious transaction detection
- Analyst dashboard for reviewing flagged payments
- Automated alerts for high-risk transactions
- Audit logs for compliance and monitoring
Cloud Infrastructure
- AWS Lambda
- API Gateway
- DynamoDB
- Amazon Cognito
- S3 + CloudFront
- SNS / SES
- CloudWatch
Backend
- Python (FastAPI / Flask)
- Boto3
Frontend
- React
Transaction Flow:
- Payment transaction is submitted through API
- API Gateway routes the request to AWS Lambda
- Fraud scoring engine evaluates the transaction
- Results are stored in DynamoDB
- High-risk transactions trigger alerts via SNS
- Analysts review flagged payments in the dashboard
- Machine learning fraud detection
- Real-time streaming with AWS Kinesis
- Advanced analytics dashboard
- Role-based access controls