Platform Architecture

MoltFi is built as a modern, cloud-native banking platform with AI-first principles.

System Components

Core Services

• Vault Service: Manages customer accounts and balances

• Transaction Engine: Processes payments and transfers

• Authorization Engine: Handles AI-powered decision making

• Card Issuing Service: Manages virtual and physical cards

• Webhook Service: Delivers real-time event notifications

Infrastructure

• Database: PostgreSQL with read replicas

• Cache: Redis for session and rate limiting

• Message Queue: RabbitMQ for async processing

• Storage: S3-compatible object storage

Architecture Principles

Microservices

Each service is independently deployable and scalable. Services communicate via REST APIs and message queues.

Event-Driven

All state changes emit events, enabling real-time notifications and audit trails.

AI-Native

The authorization engine uses LLMs to make intelligent decisions about transactions, fraud detection, and policy enforcement.

Data Flow

1. Client makes API request

2. API Gateway authenticates and routes request

3. Service processes request and emits events

4. Webhook service delivers notifications

5. Response returned to client

Security

• All data encrypted at rest and in transit

• Multi-tenant isolation at database level

• Role-based access control (RBAC)

• Audit logging for all operations

Scalability

• Horizontal scaling of stateless services

• Database sharding by tenant

• CDN for static assets

• Global edge deployment